Vigilohm System - engineering site - Schneider Electric

Insulation monitoring 

Vigilohm 

Catalogue 

2006

0 

The Guiding System, the new way to create your 

electrical installations 

A comprehensive offer of products with consistent design 

The Guiding System is first and foremost a Merlin Gerin product 

offer covering all electrical distribution needs. However, what 

makes all the difference is that these products have been designed 

to operate togheter: mechanical and electrical compatibility, 

interoperability, modularity, communication. 

Thus the electrical installation is both optimised and more efficient: 

better continuity of supply, enhanced safety for people and 

equipment, guaranteed upgradeability, effective monitoring and 

control. 

Tools to simplify design and implementation 

With the Guiding System, you have a comprehensive range of tools 

- the Guiding Tools - that will help you increase your product 

knowledge and product utilisation. Of course this is in compliance 

with current standards and procedures. 

These tools include technical booklets and guides, design aid 

software, training courses, etc. and are regularly updated. 

For a genuine partnership with you 

Because each electrical installation is unique, there is no standard 

solution. With the Guiding System, the variety of combinations 

allows for genuine customisation solutions. You can create and 

implement electrical installations to meet your creative 

requirements and design knowledge. 

You and Merlin Gerin’s Guiding System form a genuine partnership. 

For more details on the Guiding System, 

consult www.merlin-gerin.com

0 

A consistent design of offers from 

Medium Voltage to Low Voltage 

All Merlin Gerin offers are designed according to 

electrical, mechanical and communication 

consistency rules. 

The products express this consistency by their 

overall design and shared ergonomics. 

Electrical consistency: 

Discrimination guarantees co-ordination between the operating 

characteristics of serial-connected circuit-breakers. Should a 

fault occurs downstream, only the circuit-breaker placed 

immediately upstream from the fault will trip. 

Each product complies with or enhances system performance at coordination 

level: breaking capacity, Isc, temperature rise, etc. for 

more safety, continuity of supply (discrimination) or economic 

optimisation (cascading). 

The leading edge technologies employed in Merlin Gerin’s 

Guiding System ensure high performance levels in discrimination 

and cascading of protection devices, electrodynamic withstand of 

switches and current distributors, heat loss of devices, distribution 

blocks and enclosures. 

Likewise, inter-product ElectroMagnetic Compatibilty (EMC) is 

guaranteed. 

Mechanical consistency: 

Each product adopts dimensional standards simplifying and 

optimising its use within the system. 

It shares the same accessories and auxiliaries and complies with 

global ergonomic choices (utilisation mode, operating mode, setting 

and configuration devices, tools, etc.) making its installation and 

operation within the system a simpler process. 

Direct connection of the Canalis KT busbar trunking on the 

Masterpact 3200 A circuit breaker. 

Communication consistency: 

Thanks to the use of standard Web technologies, you can offer 

your customers intelligent Merlin Gerin switchboards allowing 

easy access to information: follow-up of currents, voltages, 

powers, consumption history, etc. 

Each product complies with global choices in terms of 

communication protocols (Modbus, Ethernet, etc.) for simplified 

integration in the management, supervision and monitoring 

systems. 

Guiding Tools 

for more efficient design 

and implementation 

of your installations. 

1

0 

SM6 

Medium voltage switchboard 

system from 1 to 36 kV 

Sepam 

Protection relays 

Masterpact 

Protection switchgear 

from 100 to 6300 A 

Trihal 

MV/LV dry cast resin 

transformer 

from 160 to 5000 kVA 

Evolis 

MV vacuum 

switchgear and 

components 

from 1 to 24 kV. 

The Technical guide 

These technical guides help you comply with 

installation standards and rules i.e.: 

The electrical installation guide, the 

protection guide, the switchboard 

implementation guide, the technical booklets 

and the co-ordination tables all form genuine 

reference tools for the design of highperformance 

electrical installations. 

For example, the LV protection co-ordination 

guide - discrimination and cascading - 

optimises choice of protection and 

connection devices while also increasing 

markedly continuity of supply in the 

installations. 

CAD software and tools 

The CAD software and tools enhance 

productivity and safety. 

They help you create your installations 

by simplifying product choice through 

easy browsing in the Guiding System 

offers. 

Last but not least, they optimise 

use of our products while also complying 

with standards and proper procedures. 

2

0 

Compact 

Protection switchgear system 

from 100 to 630 A 

Multi 9 

Modular protection switchgear 

system up to 125 A 

Prisma Plus 

Functional system for electrical 

distribution switchboards 

up to 3200 A 

Pragma 

Enclosures for 

distribution 

switchboards 

up to 160 A 

Canalis 

Prefabricated Busbar 

Trunking 

from 25 to 4000 A 

PowerLogic 

Power 

management 

Training 

Training allows you to acquire the Merlin 

Gerin expertise (installation design, work 

with power on, etc.) for increased 

efficiency and a guarantee of improved 

customer service. 

The training catalogue includes beginner’s 

courses in electrical distribution, 

knowledge of MV and LV switchgear, 

operation and maintenance of 

installations, design of LV installations to 

give but a few examples. 

merlin-gerin.com 

This international site allows you to access 

all the Merlin Gerin products in just 2 clicks 

via comprehensive range data-sheets, with 

direct links to: 

b complete library: technical documents, 

catalogs, FAQs, brochures… 

b selection guides from the e-catalog 

b product discovery sites and their Flash 

animations. 

You will also find illustrated overviews, 

news to which you can subscribe, the list 

of country contacts… 

3

insulation monitoring 

monitoring 


page 

1/ presentation 6 

2/ functions and 17 

characteristics 

3/ installation and 45 

connection 

4/ catalogue numbers 55 

5

Vigilohm: presentation 

insulation monitoring and associated functions 

continuity of supply 

Continuity of supply is a need that must 

always be satisfied by electrical installations, 

along with the protection of life and property. 

The IT system provides the best guarantee 

in terms of continuity of supply. Even when a 

first insulation fault is present, the installation 

can continue to supply power without 

endangering human life. The first fault must 

however be detected and repaired before a 

second fault occurs. 

IO316_123 

principle 

Insulation monitoring is provided on IT 

systems to detect and indicate insulation 

faults as soon as they occur. 

The basic function is carried out by an 

Insulation Monitoring Device (IMD), also 

referred to in certain documentation as a 

permanent or continuous insulation monitor 

(PIM or CIM respectively). The monitoring 

device injects a DC or low-frequency 

AC voltage between the installation and 

earth. The insulation resistance is determined 

from the resulting current. This technique can 

be used on all types of installations: AC, DC, 

rectified, mixed AC/DC, etc. 

DB100664 

measuring, indicating and 

locating insulation faults 

Vigilohm System, with or without a 

communication bus, fulfils the following 

basic functions: 

c measurement of insulation level on all 

types of installations 

c manual or automatic locating of insulation 

faults. 

Vigilohm System with a 

communication bus 

The communication bus adds the following 

possibilities: 

c measurement of the insulation resistance 

and earth leakage capacitance of each 

circuit 

c centralisation of fault locating 

measurements on the IMD display units 

c communication with a supervisor 

(transmission of measurements and 

reception of settings). 

6

vigilohm system 

XD301 

50507 

vigirex - vigidix 

M 

M 

MERLIN GERIN 

test 

reset 

XAS 

XML316 

1 2 3 4 5 6 7 8 

9 10 11 12 13 14 15 16 

d faut 

MERLIN GERIN 


1 2 3 

4 5 6 

7 8 9 

10 11 12 


XD312 

50536 

MERLIN GERIN 


M 

M 

test 

reset 

test 

P50 

on P12 P1 0 

vigidix 

RM 10N 

XLI300 

d faut 

XD308c 

1 2 3 4 5 6 7 8 

test 

reset 

test 

on 

GO 

XM300c 

XTU300 

XL316 

P O 

d faut 

MERLIN GERIN 

test 

1 2 3 4 5 6 7 8 

9 10 11 12 13 14 15 16 

S1 

S2 

test/reset 

test 


Vigilohm System with or without a communication bus 

Vigilohm System without a 




supervision and event logging 

DB100662 

DB100955 

supervisor 

printer 

interfaces 

XAS XAS 

XLI300 XTU300 

MERLIN GERIN 


MERLIN GERIN 


MERLIN GERIN 



XML308/316 

XM300c 

MERLIN GERIN 


MERLIN GERIN 


valeur d'isolement 

TEST MENU 

040 K 


TEST MENU 

040 K 

insulation fault detection and locating 

XD301 

XD312 

XRM 

XD308c 

XL308 / 316 

MERLIN GERIN 


MERLIN GERIN 


MERLIN GERIN 

MERLIN GERIN 

MERLIN GERIN 

sensors 

MERLIN GERIN 

S1 

S2 

7

vigilohm 

TR 22A 

test 

K 

MERLIN GERIN 

vigilhom 

SM21 

50761 

0,75 

1,0 1,25 

1,5 

1,75 1,0 

0,5 

0,25 2,0 

Sa 

MΩ 

1,5 

AL. REL. test 

OK 

3,0 2,0 o f on 

7,5 

5,0 

0,5 10 

Sp 

AL. REL. 


Vigilohm System without a communication bus 

Vigilohm System without a 


This solution offers: 

c automatic fault detection; 

c accurate measurements of the insulation 

level for all types of installations. 

DB100650 


Insulation monitoring devices inject a DC or 

low-frequency AC voltage between the 

installation and earth. The insulation 

resistance is determined by measuring the 

resulting leakage current. 

c Vigilohm EM9 devices use an indicator 

light to signal the presence of an insulation 

fault within the installation. They are 

modular devices (Multi 9 format) designed 

for small installations or sub-systems 

isolated from earth; 

c the TR22A and TR22AH (for hospitals) 

devices detect insulation faults and, in 

addition, continuously indicate the value of 

the insulation resistance on a digital display; 

c the XM200 is part of the Vigilohm System 

range and can be associated with automatic 

fault locating devices. 

E18812 

MERLIN GERIN 

TR22A 

off-line insulation 

monitoring 

The failure of a motor to start can have 

serious consequences. This is especially 

true in the following applications: 

c safety equipment (fire pumps, smoke 

extractors, etc.); 

c production (glass works, cement plants, 

etc.); 

c manufacturing processes (rolling mills, etc.). 

Motors often fail to start due to insulation 

problems caused by the humidity that 

accumulates in the microscopic cracks of the 

insulation during periods when the motor is 

not running. The SM21 device monitors the 

insulation of critical motors while they are 

off-line. Insulation faults give rise to an 

alarm or motor starting lock-out. 

E27136 

E27112 

1 2 3 4 5 6 7 

8 9 10 

11 

12 

13 

14 

SM21 

8

on P12 

MERLIN GERIN 

vigidix 

RM 10N 

P50 

P1 0 

P50¥ 

on P12 P1 0 

MERLIN GERIN 

vigidix 

RM 10N 

1 2 3 

4 5 6 

7 8 9 

10 11 12 

MERLIN GERIN 

MERLIN GERIN 


XD312 

50536 


XM200 

R C Sp Sa 

M 

M 

S 

test 

reset 

MERLIN GERIN 


XM100 

menu ok test 

test 

test 

on P12 

MERLIN GERIN 

vigidix 

RM 10N 

P50 

P1 0 


Vigilohm System without a communication bus 

fault locating 

Once detected, an insulation fault must be 

located and eliminated in order to guarantee 

maximum continuity of supply. 

Manual fault locating 

The fault is located by testing different points 

in the installation, one after another, using a 

Vigilohm System XRM mobile receiver and a 

current probe. The receiver captures the 

low-frequency fault locating signal. 

Two cases may be encountered: 

c the installation is equipped with an XM200 

or XM300C insulation monitoring device 

(Vigilohm System). 

In this case, the manual system is used to 

fine-tune the results of the automatic 

locating system 

c the installation (relatively small or an 

isolated sub-system) is equipped with an 

insulation monitoring device for DC injection. 

In this case, a Vigilohm XGR portable 

generator is used together with an XRM 

receiver. 

Automatic locating: 

For easy locating of insulation faults, the 

Vigilohm System makes it possible to 

combine the XM200 insulation monitoring 

device with: 

c XD301/XD312 fault detectors to monitor 

the different circuits of the installation; 

c XRM receivers for mobile fault locating. 

DB110935 

E27110 DB100950 

Manual fault locating 

XRM 

XRM 


040 K 

TEST MENU 

Automatic fault locating 

XM200 

XGR 

XM300C 

XD312 

XRM 

9

MERLIN GERIN 


XD301 

50507 


M 

M 

MERLIN GERIN 

test 

reset 

MERLIN GERIN 


XAS 

défaut 

MERLIN GERIN 


MERLIN GERIN 


1 2 3 

4 5 6 

7 8 9 

10 11 12 

MERLIN GERIN 


XD312 

50536 

MERLIN GERIN 


XML316 

1 2 3 4 5 6 7 8 

9 10 11 12 13 14 15 16 

M 

M 

test 

reset 


TEST MENU 

040 K 

test 

P50 

on P12 P1 0 

RM 10N 

MERLIN GERIN 

vigidix 

MERLIN GERIN 


XLI3 0 

défaut 

MERLIN GERIN 


XD308c 

test 

1 2 3 4 5 6 7 8 

on 

test 

reset 

MERLIN GERIN 


XTU3 0 

GO 

défaut 

MERLIN GERIN 

MERLIN GERIN 


XM3 0c 


TEST MENU 

040 K 

MERLIN GERIN 


XL316 

S1 

S2 

MERLIN GERIN 

P O 

test 

test 

1 2 3 4 5 6 7 8 

9 10 11 12 13 14 15 16 

S1 

S2 

test/reset 


Vigilohm System with a communication bus 



The communication bus adds the following 

possibilities: 

c communication with a supervisor 

(transmission of measurements and 

reception of settings) 

c measure the insulation resistance and 

earth leakage capacitance of each circuit 

c centralisation of the locator measurements 

on the insulation monitoring device displays. 

DB100956 

supervision and event logging 

supervisor 

printer 

interfaces 

XAS XLI200/XLI300 XTU300 


XML308/316 

XM300c 

insulation fault detection and locating 

XD301 XD312 XRM XD308c XL308 / 316 

sensors 

insulation monitoring and associated functions 

communication features 

In addition to displaying the insulation values 

it measures for the installation as a whole, an 

insulation monitoring device can also provide 

a centralised display for information 

concerning specific circuits. It receives this 

information from communicating insulation 

fault locators and detectors distributed 

throughout the installation. All this information 

may also be transmitted to a remote 

supervisory system. 

These communication features satisfy the 

operating requirements of modern electrical 

installations. All information concerning the 

insulation can be transmitted via a 

communication bus for display on a 

centralised insulation monitoring device or to 

a supervision system for centralised 

processing and management. 

E17057 

centralisation on a supervisor 

centralisation on an IMD 

local display 

measurements 

prevention of insulation 

faults 

E17059 

Prevention is the best way to ensure the 

continuity of supply of electrical installations. 

It may be applied in two ways: 

c the insulation monitoring device signals a 

drop in the insulation resistance below a 

non-critical prevention threshold determined 

by the user; 

c the measurements are transmitted to a 

supervisor, which can then process them to 

predict insulation faults on ageing cables. 

These indications can be used to schedule 

preventive maintenance. 

fault prevention 

preventive level 

fault level 

10

MERLIN GERIN 


XM300c 

test 

MERLIN GERIN 


XLI300 

défaut 

MERLIN GERIN 


XL308c 


XM200 

1 2 3 4 5 6 7 8 

9 10 11 12 13 14 15 16 

R C Sp Sa 

test/reset 

1 2 3 

4 5 6 

7 8 9 

10 11 12 

test 

S 

menu ok test 


XD312 

50536 

M 

M 

test 

test 

reset 


Vigilohm System: 

general information 

easier operation of 

IT systems 

An installation implementing the IT system, 

i.e. isolated from earth or connected to earth 

through a sufficiently high impedance, gives 

top priority to continuity of supply. 

Today, the operation of such installations 

can be greatly facilitated by the use of 

devices that offer functions going far beyond 

the simple fault signalling imposed by 

standards. 

... with Vigilohm System 

Vigilohm System is a range of Merlin Gerin 

products meeting the needs of IT systems in 

terms of performance, practical operation 

and continuity of supply. 

This range features modular design. It is 

made up of Insulation Monitoring Devices 

(IMDs) and fault detection and locating 

devices. Some of these devices make 

independent measurements of the insulation 

resistance on each circuit. 

In addition, the Vigilohm System can 

communicate with a supervisor or PLC. 

principle and functions 

The basic device is the Insulation 

Monitoring Device (IMD). It injects a lowfrequency 

AC voltage between earth and the 

installation. Based on a measurement of the 

resulting current, the Vigilohm System 

accurately determines the true insulation 

resistance of the installation and its earth 

coupling capacitance. This technique can be 

used on all types of installations: AC, DC, 

rectified, mixed, etc. 

Fault locating is the main function 

associated with insulation monitoring. 

Toroids placed on the various circuits 

capture a signal proportional to the current 

injected by the insulation monitoring device. 

This signal is transmitted to fault detection 

and locating devices which automatically 

identify any faulty circuit. 

Distributed measurements of the 

insulation resistance and the earth leakage 

capacitance are possible on each circuit via 

the toroids used for fault locating. 

Centralisation on a supervisor. Via a 

communication bus using JBUS protocol, 

the Vigilohm System can forward all 

measurements, information and events to a 

supervisor. In this way, the supervisor 

maintains full knowledge on the insulation 

status of the overall installation and the 

individually monitored circuits. The 

supervisor (or PLC) can be connected to a 

printer to log all events occurring on the 

installation, complete with location and 

timestamp. 

Adaptation to variable installation 

configurations. The system automatically 

excludes all but one insulation monitoring 

device connected to the same set of 

busbars. 

E20123 

Other functions 

c measurement of the true insulation 

resistance 

c measurement of the earth leakage 

capacitance 

c indication of transient faults 

c prevention alarm when the insulation 

resistance falls below a non-critical 

threshold determined by the user; 

c remote interrogation and display, from the 

insulation monitoring device, of faults 

detected by the fault locators 

c setting of alarm thresholds from a 

supervisor 

c ... 

The system evolves with the needs of the 

installation. New devices can be added at 

any time to adapt to installation 

modifications or provide higher levels of 

monitoring. 

insensitivity to electrical 

disturbances 

The Vigilohm System offers both 

measurement accuracy and insensitivity to 

electrical disturbances. Designed to operate 

on modern installations, it is not affected by 

the harmonics generated by loads such as 

variable speed drives, UPSs and switchmode 

power supplies. 


TEST MENU 

... to distributed measurements with centralised display 

1,5 K 

E20122 

insulation resistance 

1.5 KΩ 

TEST MENU 

XM300c 

MERLIN GERIN 

From automatic fault locating with local display ... 

XLI300 

supervisor 

insulation 

resistance 

1.5 KΩ 

valeur 

d'isolement 

1,5 K 

XL316 

XM200 

XD312 

MERLIN GERIN 

11



choosing the system architecture 

what devices make up the 

system? 

c XM200 and XM300C insulation monitoring 

devices inject a signal that is used by the 

detection and locating devices; 

c XL308 and XL316 locators, connected to 8 

or 16 toroids, measure the insulation 

resistance of each circuit (distributed 

measurements) and, in the event of a fault, 

automatically identify the faulty circuit. 

They can transmit this information to a 

supervisor; 

c XML308 and XML316 monitoring-locating 

devices combine the monitoring and locating 

functions in a single unit; 

c the XD308C communicating insulation 

fault detector automatically identifies the 

faulty circuit and transmits this information to 

a supervisor; 

c XD301 and XD312 non-communicating 

insulation fault detectors automatically 

identify the faulty circuit; 

c the XRM mobile receiver can be used to 

fine-tune the automatic locating results by 

identifying the faulty circuit at the final 

distribution level; 

c XLI200, XLI300 and XTU300 interfaces 

make communication possible between the 

Vigilohm System and a supervisor; 

c the XAS interface is used to supply power 

to the communication bus. 

1 level of performance 

12 

2 locating and measurement devices 

XRM XD301/302 XD308C XL308/316 

receiver detector detector locator 

manual fault locating 

c 

automatic fault locating c v v 

with local display 

automatic fault locating c v 

with centralised display 

distributed measurements 

c 

with local display 

distributed measurements 

c 

with centralised display 

3 insulation monitoring device 

XM200 c c 

XM300c v v c c 

XML308/316 v v v c 

4 XAS, XLI200, XLI300, XTU300 

interfaces c c 

c device providing only the required function 

v device offering additional possibilities or higher performance. 

how to choose the right 

system? 

The right system can be chosen in four 

steps, described in detail below: 

1. define the required level of locating and 

measurement performance. 

2. select the corresponding locating and 

measurement devices. 

3. select the insulation monitoring devices 

compatible with the locating and 


4. check whether or not an interface is 

required. 

Note: connect the insulation monitoring 

device to a PHT1000 subassembly if the 

installation voltage U is: 

c 760 

c 440 

distributed); 

c 550 

voltage). 

1 level of locating and measurement 

performance 

According to your need, select one of the 

five possibilities listed in part 1 of the table. 

The choice depends on: 

c the required performance of the locating 

system to be associated with the fault 

detection function; 

c the need for independent insulation 

measurements on each circuit. 

The five possibilities are (in increasing order 

of performance): 

v manual fault locating 

The fault is located using a mobile receiver 

connected to a current probe placed at 

different points in the installation one after 

another. This type of system is 

recommended as an enhancement to the 

automatic system in order to determine the 

faulty portion of a circuit on which an 

insulation fault has been detected. 

v automatic fault locating with local 

display 

The faulty circuit is identified and indicated 

on the front face of the fault detector. 

A contact is provided for remote indications, 

v automatic fault locating with 

centralised display 

The faulty circuit is identified and indicated 

on the front face of the fault detector. The 

information is also transmitted to a 

supervisor or a PLC, 

v distributed measurements with local 

display 

The devices measure the insulation 

resistance on each circuit independently. 

These measurements can be read on the 

front face of the device. 

Faults are located and displayed locally. A 

contact is provided for remote indications, 

v distributed measurements with 

centralised display 

The insulation measurement for each circuit 

and the indication of the faulty circuit are 

displayed on the front of the device and 

transmitted to a supervisor or PLC. 

2 selection of the locating and 

measurement devices 

On the line selected in part 1, select the fault 

locating or distributed measurement device 

in part 2 of the table. 

3 selection of the insulation monitoring 

device 

Similarly, determine the insulation monitoring 

devices, in part 3 of the table, that are 

compatible with the selected locating and 


4 necessity of an interface 

For the column selected in part 2 of the 

table, part 4 indicates whether or not an 

interface is required. If required, the 

interface will be selected according to the 

installation and the devices making up the 

system. See the page entitled "choosing the 

communication interface".

1 2 3 

4 5 6 

7 8 9 

10 11 12 

MERLIN GERIN 


XM200 

MERLIN GERIN 


XAS 

R C Sp Sa 

MERLIN GERIN 


XD312 

50536 

MERLIN GERIN 

défaut 


XL316 

MERLIN GERIN 

XD312 

M 

M 

S 

menu ok test 

test 

reset 

test 

reset 

1 

9 

2 

10 

3 

11 

4 

12 

test 

5 

13 

6 

14 

7 

15 

8 

16 

test/reset 

test 

MERLIN GERIN 


XM300c 

040 K 

test 

MERLIN GERIN 

RM 10N 

P50 

P12 P1 0 

MERLIN GERIN 

RM 10N 

P12 

P50 

P1 0 

MERLIN GERIN 


XAS 

MERLIN GERIN 


XAS 

défaut 

défaut 

MERLIN GERIN 

RM 10N 

P50 

P12 P1 0 

MERLIN GERIN 

MERLIN GERIN 


XD308c 


XL308c 

1 2 3 4 5 6 7 8 

test 

reset 

MERLIN GERIN 

XD312 

test 

on 

1 2 3 4 5 6 7 8 

9 10 11 12 13 14 15 16 

MERLIN GERIN 

XD308c 

test 

reset 

test/reset 

test 

MERLIN GERIN 


XML316 

1 2 3 4 5 6 7 8 

9 10 11 12 13 14 15 16 

MERLIN GERIN 


XM300c 

040 K 

MERLIN GERIN 


XD308c 

RM 10N 

1 2 3 4 5 6 7 8 

test 

MERLIN GERIN 

reset 

P50 

P12 P1 0 

test 

on 

MERLIN GERIN 

XD312 

test 

test 

test 

reset 



choosing the fault locating system 

The Vigilohm System offers four fault 

locating performance levels. 

level 1: automatic fault detection and 

locating. 

level 2: automatic fault detection and 

locating with transmission to a supervisor. 

level 3: automatic fault detection, locating 

and measurement. 

level 4: automatic fault detection, locating 

and measurement with transmission to a 

supervisor. 

Manual fault locating with the XRM mobile 

receiver is generally used to fine-tune the 

automatic locating results. 

E24547 

XM200 

E24548 

interface 

supervisor 

printer 

IMD 


TEST MENU 

XRM 

XD312 

XD308c 

XD308c 

level 1: automatic fault detection and locating 

XRM 

XD312 

level 2: automatic fault detection and locating with transmission to a supervisor. 

E24550 

interface 

XM300c 

E24549 

interface 

supervisor 

printer 

XML308/316 


TEST MENU 

040 K 


TEST MENU 

XL308/316 

XL308/316 

XD312 

XRM 

XD308c 

XRM 

XD312 

level 3: automatic fault detection, locating and 

measurement 

level 4: automatic fault detection, locating and measurement with transmission 

to a supervisor. 

13



choosing a communication interface 

the power of a 

communicating system 

The power of the Vigilohm System lies in the 

capacity it offers for communication between 

all its devices, thereby ensuring insulation 

monitoring and complementary functions 

such as automatic locating of faults or the 

anticipation of their occurrence. 

In addition, the Vigilohm System is capable 

of communicating with a supervisor or a 

PLC, i.e. it can both transmit data to and 

receive data from such units. 

The transfer of information takes place: 

c via the internal Vigilohm System bus for 

communication between the devices; 

c via the external JBUS for communication 

with a supervisor or PLC. 

In both cases, the use of an internal or 

external bus requires a communication 

interface. 

four interfaces 

The Vigilohm System offers four interfaces: 

c the XLI200 interface, for the transmission 

of information from the insulation monitoring 

device and XD308C detectors to a 

supervisor or PLC via JBUS. In this way, 

a PC can access information concerning 

the presence of faults and the identification 

of the faulty circuit. This interface cannot be 

used with XL308/316 or XML308/316 

devices and connects only to the XM300C 

and XD308C (the XLI200 cannot be used 

with XML monitoring-locating devices or with 

XL locating devices). 

c the XLI300 interface, for the transmission 

of measurements and measurement 

parameters from the XM300C and XD308C 

devices to a supervisor. This interface is 

used on single busbar installations. The 

exclusion of other insulation monitoring 

devices found on the same installation is 

managed automatically; 

c the XTU300 interface, for communication 

between the Vigilohm System and a 

supervisor, like the XLI300 interface. This 

interface is required for installations with 

multiple busbars and bus coupler circuit 

breakers. It manages the exclusion of other 

insulation monitoring devices found on the 

same installation and the link between the 

locators and their corresponding insulation 

monitoring devices; 

c the XAS interface, indispensable for the 

operation of the communication bus in the 

absence of one of the three other interfaces. 

interface selection table 

IMD associated only one XML308/316 IMD with at least IMD with a least 

with XD308C device 1 locator 1 locator 

communicating + 1 set of busbars + several sets 

detectors, whatever the 

of busbars with 

installation configuration 

bus coupling 

without supervision ---- ---- XAS XTU300 

with supervision XLI200 XLI300 XLI300 XTU300 

E20791 

E20792 

MV/LV 

XML308 

One set of busbars without supervisor 

XM300c 

MV/LV 

XAS 

XL308 

supervisor 

or 

PLC 

DB100957 E20790A 

MV/LV 

XML308 

One set of busbars with supervisor 

XM300c 

MV/LV 

supervisor 

or 

PLC 

XLI300 

XL308 

supervisor 

or 

PLC 

MV/LV 

MV/LV 

MT/BT 

MT/BT 

XML308 

XM300c 

XTU300 

XM300C 

XM300C 

XLI200 

XD308C 

XL308 

XD308C 

Several sets of busbars with bus coupling and with or without supervisor 

14 

application of the measurement voltage 

internal Vigilohm System bus 

JBUS bus



two examples of installations 

E20786 E20788 

MV/LV 

XM200 

XD301 

MV/LV 

XML316 

XRM 

MV/LV 

XM200 

MV/LV 

XML308 

XD301 

XD312 

G 

supervisor 

or 

PLC 

XTU300 

XM300c 

XL308 

automatic fault locating 

with or without supervision 

The following examples cover two typical 

installation configurations with insulation 

monitoring and fault locating systems. 

Example 1: 

c automatic fault locating with local 

display. 

The use of an XM200 insulation monitoring 

device together with XD301 and XD312 

detectors represents the typical case 

providing basic detection and automatic 

locating of insulation faults on the main 

feeders as well as on certain secondary 

feeders. 

Fault locating can be fine-tuned using an 

XRM mobile receiver and a current probe to 

determine the exact location of the fault on 

the faulty circuit. 

The auto-exclusion of other XM200 insulation 

monitoring devices is controlled by the circuit 

breaker position indication contacts. 

Example 2: 

c measurement and automatic fault 

locating with local and centralised 

display, for an installation with more than 

one set of busbars and a bus coupling 

circuit breaker. 

The measurement of the insulation 

resistance on the main feeders is provided in 

addition to fault detection with automatic 

locating (XL308/316 and XML308/316). 

The secondary feeders are monitored simply 

by an XD312/301 detector or by an XD308C 

detector that communicates detected faults to 

the supervisor (via the XTU300 interface). 

The architecture of the installation (several 

sources and sets of busbars) makes it 

necessary to use an XTU300 interface to 

handle the exclusion of other insulation 

monitoring devices and the link between the 

locators and their corresponding insulation 

monitoring devices. 

XD312 

XD308c 

XRM 

application of the measurement voltage 

internal Vigilohm System bus 

JBUS bus 

15



2/ functions 

and characteristics 

page 

choosing an insulation monitoring device 

for different types of installations 18 

and associated functions 20 

Vigilhom System 

XM300C insulation monitoring 22 

device 

XL308 and XL316 insulation 24 

fault locators 

XML308 and XML 316 monitoring- 26 

locating devices 

XD308C communicating automatic 28 

insulation fault detector 

XLI200, XLI300, XTU300, XAS 29 

communication interfaces 

XM200 insulation monitoring 30 

device 

XD301 and XD312 automatic 32 

insulation fault detectors 

XRM mobile fault locating receiver 33 

and current probes 


TR22A and TR22AH insulation 34 

monitoring devices 

EM9 and EM9B insulation 35 

monitoring devices 

EM9BV insulation monitoring device 36 

EM9T insulation monitoring device 37 

TR5A insulation monitoring device 38 

SM21 insulation monitoring device 39 

mobile fault locating kit 

XGR + XRM + probes 40 

toroids 41 

auxiliaries 43 

17

Vigilohm: functions and characteristics 


for different types of installations 

044147 044148 

installation characteristics (1) 

device XM200 XM300C 

IT system for the entire installation 

Continuity of supply is the requirement that most often 

leads designers to chose the IT system for an electrical 

installation. 

This requirement may apply to the entire installation 

(e.g. chemical process plant, steel plant, etc.). 

Such an installation requires continuous monitoring of 

the insulation level. 

E27341 

E27336 

MV/LV 

MV/LV 

P1 

IMD 

PHT 1000 

IMD 

E27427 

L1 

L2 

L3 

N 

PHT 1000 

IMD 

440 to 

1000 V AC* (1) 

500 to 

1200 V DC* 

*with 

PHT 1000 

subassembly 

E27343 

MV/LV 

L1 

L2 

L3 

N 

i 440 V AC (1) 

i 500 V DC 

i 440 V AC (1) 

i 500 V DC 

IMD 

L- 

L+ 

IT system for part of an installation 

The requirement for continuity of supply may apply to 

only a part of an installation, for example a single shop 

or plant, or a circuit subject to special conditions 

(safety lighting). 

In this case, it is recommended to use the IT system 

for this part of the installation, whatever the system 

used for general distribution. 

E27344 

E27345 

MV/LV 

MV/LV 

TN or TT 

LV/LV 

IMD 

TN or TT 

IT 

L1 

L2 

L3 

N 

L1 

L2 

L3 

N 

L1 

L2 

L3 

i 440 V AC 

i 440 V AC 

machine 

tool or 

robot 

LV/LV 

IMD 

IT 

control/monitoring 

IT system for DC installations 

In many cases, the use of direct current corresponds to 

a need for continuity of supply. The use of an IT 

system and insulation monitoring is therefore 

consistent with this choice. 

E27337 

500 V 500 to 1200 V TR5A 

IMD 

+ 

– 

E27338 

PHT 1000 

IMD 

+ 

– 

E27339 

IMD 

+ 

– 

i 500 V DC 

i 500 V DC 

500 to 

1200 V DC* 

*with 

PHT 1000 

subassembly 

off-line insulation monitoring 

The use of motors in industrial processes creates a further 

need for insulation monitoring. By checking the insulation 

with power off, the presence of insulation faults can be 

determined before starting motors (fire pumps, smoke 

extractors, etc.). It is also possible to prevent motor starting 

automatically if the insulation resistance is below a certain 

threshold. 

E27346 

L1 

L2 

L3 

IMD 

M 

(1) Phase-to-phase voltage with IMD connected to one phase. Multiply these values by e if IMD is connected to neutral. 

(2) Installation without frequency converter. 

18

044149 041850 043274 

042578 

042580 

042580 

042582 017422 051346 

042581 

XML 

308/316 

TR22A TR22AH EM9 EM9B EM9BV EM9T TR5A SM21 

i 1 000 V AC 

(1) 

with P1 

subassembly 

440 to 

1000 V AC* (1) 

500 to 

1200 V DC* 

*with 

PHT 1000 

subassembly 

i 440 V AC (1) 

i 500 V DC 

i 440 V AC (1) 

(2) 

i 440 V AC (1) 

(2) 

i 440 V AC 

i 440 V AC i 440 V AC i 440 V AC i 440 V AC 

i 440 V AC 

i 220 V AC 

i 500 V DC 

500 to 

1200 V DC* 

*with 

PHT 1000 

subassembly 

i 420 V DC 

i 690 V AC 

19



and associated functions 

044147 044148 

installation characteristics 

device 

XM200 

XM300C 

injected signal 

2.5 Hz 

2.5 Hz 

IT system for the entire installation 

E27328 

HV/MV 

MV/LV 

MV/LV 

voltage (1) 

with rectifiers 

440 to 1000 V AC 

i 400 V AC 

440 to 1000 V AC 

(2) 

(2) 

i 440 V AC 

for hospitals 

i 440 V AC 

IT system for part of an installation 

E27329 

MV/LV 

LV/LV 

high insulation level 

i 440 V AC 

low insulation level 

i 440 V AC 

control and 

monitoring 

of machines 

i 220 V AC 

DC installation 

E27330 

+ 

24 to 420 V DC 

- 

i 500 V DC 

500 to 1200 V DC 

(2) 

off-line monitoring (LV motors) 

E27331 

M 

i 690 V AC 

E27332 

communication functions 

insulation resistance measurement 

kΩ 

measurement display 

prevention indication 

E27335 

E27333 

fault locating 

communication with supervisor 

external BUS 

insulation fault indication 

manual 

automatic 

automatic + fault measurement 

via JBUS communication bus (and interfaces) 

(1) Phase-to-phase voltage with IMD connected to one 

phase. Multiply these values by e if IMD is connected to 

neutral. 

(2) With PHT 1000 subassembly. 

(4) (4) 

(6) (7) 

(8) 

(3) With P1 subassembly. 

(4) With XRM mobile receiver. 

(5) With XRM mobile receiver + XGR signal generator 

20

044149 

041850 043274 

042578 

042580 

042580 

042582 

017422 051346 

042581 

XML 

308/316 

2.5 Hz 

TR22A 

DC 

TR22AH 

DC 

EM9 

DC 

EM9B 

DC 

EM9BV 

DC 

EM9T 

DC 

TR5A 

NONE 

SM21 

DC 

(2) 

(3) 

(2) 

(9) 

(2) 

(4) 

(5) (5) (5) (5) (5) 

(5) (5) 

(7) 

(8) 

(6) With XD301/312 detector. 

(7) With XD301/312 detector or communicating XD308C 

detector. 

(8) With XL308/316 locator. 

(9) Remote test possible. 

21

044148 

MERLIN GERIN 

v ig ilo h m s y s t e m 

X D 3 0 1 

5 0 5 0 7 

MERLIN GERIN 

v i g i r e x - v i g i d i x 

M 

M 

t e s t 

r e s e t 

MERLIN GERIN 

vigilo h m system 

XAS 

MERLIN GERIN 

vig ilo h m system 

XML316 

1 2 3 4 5 6 7 8 

9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 

MERLIN GERIN 


d é f a u t 

1 2 3 

4 5 6 

7 8 9 

10 11 12 


TEST MENU 

040 K 

MERLIN GERIN 


X D 3 1 2 

5 0 5 3 6 

MERLIN GERIN 


M 

M 

t e s t 

r e s e t 

test 

MERLIN GERIN 

v i g i d i x 

R M 1 0 N 

P 1 0 

P 5 0 

o n P 1 2 

MERLIN GERIN 

vigiloh m system 

XLI3 0 

d é f a u t 

MERLIN GERIN 


X D 3 08c 

test 

1 2 3 4 5 6 7 8 

on 

test 

reset 

MERLIN GERIN 

G O 

MERLIN GERIN 

MERLIN GERIN 

vigiloh m system 

XTU3 0 


X M 3 0 c 


TEST MENU 

040 K 

MERLIN GERIN 


X L 3 1 6 

S1 

S2 

P O 

d é f a u t 

MERLIN GERIN 

test 

test 

1 2 3 4 5 6 7 8 

9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 

S1 

S2 

test/reset 


communicating Vigilohm System 

XM300C insulation monitoring device 

DB100958 

interfaces 


XML308/316 

insulation 

fault detection and locating 

sensors 

XM300c 

basic function: overall 


The XM300C provides overall insulation 

monitoring of electrical installations by 

injecting a low-frequency AC voltage 

between the installation and earth. 

main functions 

c measurement: 

v insulation resistance, 

v earth leakage capacitance; 

c indications: 

v satisfactory insulation resistance (green 

light on bargraph), 

v drop in insulation resistance: 

– below prevention threshold (orange light 

on bargraph and relay actuated), 

– below fault threshold (red light on bargraph 

and two relays actuated, including one with 

a failsafe feature), 

v transient faults (orange light); 

c display: 

v measurements, 

v events detected by any XL308/316 

locators connected. 

All this data is accessible locally on the LCD 

screen of the insulating monitoring device 

and remotely via the Vigilohm System bus. 

additional functions with 

other devices 

Locating of faulty circuits 

This function is obtained by using the 

XM300C together with: 

c XL308 and XL316 locators connected to 8 

or 16 toroids. They are linked to the 

XM300C by the Vigilohm System bus; 

c XD308C communicating detectors. They 

are linked to the XM300C by the Vigilohm 

System bus, and connected to the toroids 

placed on the circuits to be monitored; 

c XD301 and XD312 detectors connected to 

the toroids placed on the circuits to be 

monitored; 

c an XRM mobile receiver and a current 

probe to fine-tune the automatic locating 

results. 

All these devices can be combined on a 

given installation. 

Distributed measurements 

This function is provided by combining an 

XM300C monitoring device (or an 

XML308/316 monitoring-locating device) 

with XL308 or XL316 locators. 

These locators measure the insulation 

resistance and the earth leakage 

capacitance of each of the circuits. 

They have a fault alarm threshold that can 

be set to a different levels for each channel. 

communication 

Communication with the supervision system. 

The XLI300 and XTU300 interfaces allow 

monitoring devices + locators 

+ communicating detectors to exchange 

information with a supervision system via 

JBUS protocol. 

The XLI300 and XTU300 interfaces connect 

to the Vigilohm System bus and allow 

timestamping of insulation monitoring 

events. 

configuration management 

On installations with a number of insulation 

monitoring devices installed to cover 

variable configurations, only one device at a 

time can be allowed to inject a voltage 

between earth and the installation 

downstream of the incoming circuit breaker. 

For this reason, the system must manage 

the exclusion of other connected insulation 

monitoring devices. In addition, each locator 

must identify the monitoring device from 

which it is to capture the signal. 

The exclusion of monitoring devices and 

their identification by the locators is handled 

in one of the following manners: 

c by the XTU300 interface for multiple 

busbar installations; 

c by the XLI300 interface for single busbar 


In both cases, the circuit breaker position 

indication contacts are wired to the all-ornothing 

inputs of the XM300C or 

XML308/316. 

If only XD308C detectors are associated 

with the XM300C, monitoring device 

exclusion is handled by the XLI200 interface. 

standards 

The XM300C insulation monitoring device 

complies with the following standards: 

c IEC 364, parts 4 and 5; 

c class CPI/XA of UTE C 63-080. 

It is implemented in accordance with 

standard NF C 15-100 paragraph 413.4; 

c IEC 61557-8. 

installation and connection 

c horizontal flush mounting on the front face 

of a cubicle or enclosure; 

c easy mounting in Prisma enclosures using 

the corresponding mounting plates and front 

plates that come with the appropriate 

cut-outs; 

c the devices are interconnected by shielded 

cables (double 0.75 mm 2 twisted pairs). 

The resistance between the two most distant 

points must not exceed 12 Ω. 

The coupling capacitance between pairs 

must not exceed 250 nF; 

c if no XTU300 or XLI300 interface is 

included, operation of the Vigilohm System 

bus will require an XAS interface. 

22

auxiliaries 

Cardew surge limiter: page 43. 

ZX limiting impedance to create an 

impedance-earthed neutral: page 44. 

PHT1000 subassembly if the device is to 

be used on 1000-1700 V installations: 

page 44. 

restrictions for use 

The XM300C operates by injecting lowfrequency 

signals (2.5 Hz). It should not be 

used for circuits that include variable speed 

drives if this equipment continuously 

generates a signal with a similar frequency 

(≤ 5 Hz). 

E19527 

MERLIN GERIN 

XM300C 

1 7 6 2 4 5 3 

1. display indicating: 

c the value of the overall insulation 

resistance R; 

c other information as selected via function 

keys. 

2. red self-test light, indicating internal 

XM300C faults. 

3. light indicating that a transient fault has 

occurred. 

4. 5 lights indicating the insulation level. 

5. instruction manual stored in a drawer on 

the front face 

6. sealable cover ensuring tamperproof 

settings. 

7. function keys for: 

c accessing earth coupling capacitance 

readings 

c setting thresholds; 

c accessing three last values of transient 

insulation faults; 

c remote access to faults detected by XL308 

or XL316 detectors; 

c choice of language. 

test 

i 

type of installation to be monitored 

AC or mixed 

phase-to phase voltage 

AC/DC IT systems with XM300C connected to neutral < 760 or 1700 V AC (1) 

with XM300C connected to phase < 440 or 1000 V AC (1) 

frequency 

45-400 Hz 

size of installation 

0 to 30 km of cable 

DC or rectified line voltage < 500 or 1200 V DC (1) 

IT systems 

electrical characteristics 

ohmmeter 

digital 

range for insulation resistance readings 

0.1 to 999 kΩ 

signalling number of thresholds 2 (sealable settings) 

threshold settings 1st threshold (prevent.) 1 to 299 kΩ 

2nd threshold (fault) 0.2 to 99.9 kΩ 

dielectric strength 

2500 V 

auxiliary supply voltage 50/60 Hz 115/127 V AC 

220/240 V AC 

380/415 V AC 

500/525 V AC 

auxiliary supply voltage tolerances - 15 % to + 10 % 

maximum device consumption 

30 VA 

measurement voltage 

6 V 

measurement current 

5 mA max 

50 Hz/DC impedance 22 kΩ 

device test 

self-test and manual test 

failsafe feature (2) 

as standard 

changeover output contact quantity 3 (1 failsafe) 

breaking capacity of output AC 400 V p. f. = 0.7 3 A 

contacts 230 V p. f. = 0.7 5 A 

DC 220 V L/R = 1 ms 0.45 A 

120 V L/R = 1 ms 0.65 A 

48 V L/R = 1 ms 2.5 A 

24 V L/R = 1 ms 10 A 

circuit breaker position indication contacts (3) : voltage supplied 24 V 

(voltage and current supplied by XAS max. current supplied 10 mA (short-circuit) 

XLI or XTU interfaces) 

connection cross-sections rigid conductors 1 to 1.5 mm 2 

flexible conductors 0.75 to 1.5 mm 2 

mechanical characteristics 

weight 

sheet-metal case (horizontal mounting) 

3.5 kg 

disconnectable screw terminal block 

degree of protection flush mounting IP 30 

other characteristics 

interfacing possible with 

supervisor 

multi-language display 

English/French 

tamperproof settings 

protected by access code or sealable cover 

temperature range operating - 5 °C to + 55 °C 

storage - 25 °C to + 70 °C 

(1) The upper limit is extended to the second value by adding a PHT1000 subassembly. 

(2) Failsafe feature: a failsafe relay operates in the event of an accidental interruption of auxiliary power or a fault. 

(3) This contact is an auxiliary switch mounted on the circuit breaker and used to indicate its operating status. 

23

044145 

MERLIN GERIN 


X D 3 0 1 

5 0 5 0 7 

MERLIN GERIN 


M 

M 

t e s t 

r e s e t 

MERLIN GERIN 


XAS 

MERLIN GERIN 


XML316 

1 2 3 4 5 6 7 8 

9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 

MERLIN GERIN 


d é f a u t 

1 2 3 

4 5 6 

7 8 9 

10 11 12 


TEST MENU 

040 K 

MERLIN GERIN 


X D 3 1 2 

5 0 5 3 6 

MERLIN GERIN 


M 

M 

t e s t 

r e s e t 

test 

5 0 

on P 1 2 P 1 0 

MERLIN GERIN 

v i g i d ix 

R M 1 0 N 

MERLIN GERIN 


XLI3 0 

d é f a u t 

MERLIN GERIN 


X D 3 0 8c 

test 

1 2 3 4 5 6 7 8 

on 

test 

reset 

MERLIN GERIN 

G O 

MERLIN GERIN 

MERLIN GERIN 

vig iloh m system 

XTU3 0 

vig ilo hm system 

X M 3 0 c 


TEST MENU 

040 K 

MERLIN GERIN 


X L31 6 

S1 

S2 

P O 

d é f a u t 

MERLIN GERIN 

test 

test 

1 2 3 4 5 6 7 8 

9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 

S1 

S2 

test/reset 



XL308 and XL316 insulation fault locators 

basic function: local 

insulation fault monitoring 

Used together with an XM300C or XML308/ 

316 monitoring device, XL308 and XL316 

locators monitor the insulation of 8 or 16 

individual circuits and automatically locate 

any faults. 



v insulation resistance of each monitored 

circuit, 

v earth leakage capacitance of each 

monitored circuit; 



light), 

v drop in insulation resistance below fault 

threshold (red light and two relays actuated, 

including one with a failsafe feature). The 

fault threshold is adjustable for each of the 8 

or 16 channels corresponding to the 

monitored circuits, 

v transient faults on each of the monitored 

circuits; 

c display: 

v faulty circuits are indicated by the 

corresponding LEDs (8 or 16 depending on 

the model), 

v a flashing LED indicates a transient fault 

on the corresponding circuit. 

communication 

Faults detected by XL308/316 locators can 

be displayed on the insulation monitoring 

device associated with the locator. 

The information transmitted to the insulation 

monitoring device can be transmitted to a 

supervisor via an XLI300 or XTU300 

interface connect to the Vigilohm System 

bus. 

standards 

XL308 and XL316 locators comply with the 

following standards: 


c class DLD/M of UTE C 63-080; 

They are implemented in accordance with 


c IEC 61557-8. 

toroids 

XL308 and XL316 locators operate with type 

A and OA toroids. 







cut-outs; 


cables (double 0.75 mm 2 twisted pairs). 

The resistance between the two most distant 




c connection of toroids using twisted, 

shielded cable (1 pair); 




DB100959 

interfaces 


insulation 


XD301 XD312 XRM XD308c XL308 / 316 

sensors 

24

DB100954 

locator XL308 XL316 


ohmmeter 

digital 


0.1 to 999 kΩ 

signalling 8 lights (1 per channel) 16 lights (1 per channel) 

signalling threshold and 1 

setting range (per channel) fault threshold 0.2 to 99.9 kΩ 

polling time 

15 seconds per channel 

device test 



2500 V 


220/240 V AC 

380/415 V AC 

500/525 V AC 



30 VA 

indicator and output relay 

local or from insulation monitoring device 

output relays 

2 (1 failsafe) 

breaking capacity of 

output contacts 

AC 400 V p.f. = 0.7 

230 V p.f. = 0.7 

3 A 

5 A 

DC 220 V L/R = 1 ms 

0.45 A 

120 V L/R = 1 ms 0.65 A 

48 V L/R = 1 ms 2.5 A 

24 V L/R = 1 ms 10 A 

link with insulation monitoring device 

via 4-wire communication bus 

connection crosssections 


weight 

sheet-metal case 


(1) The upper limit is extended to the second value by adding a PTH1000 subassembly. 

The same voltage limits apply to both the XL308 and the XL316. 

rigid conductors 1 to 1.5 mm 2 


3.5 kg 

horizontal mounting 


types of toroid to be used 

A and OA (XC compatible) 



MERLIN GERIN 

XL31 

6 

- 

∝ 

+ 

1 2 3 4 5 6 7 8 

9 10 1 12 13 14 15 16 

1 

∝F ! 

/ 

test/rese 

t 

1 2 9 7 8 5 6 4 3 

i 

1. display indicating measured insulation 

resistance and earth coupling capacitance 

value. 

2. light indicating measurement units for 

displayed value (kΩ, µF, etc.). 

3. red self-test light, indicating device faults. 

4. yellow light indicating that a transient fault 

has occurred. 

5. 2 lights indicating the insulation level: 

c green light: normal; 

c red light: insulation resistance below fault 

threshold on one of the circuits. 




c accessing earth leakage capacitance 

readings; 



insulation faults. 


settings. 

9. lights indicating faulty circuits. 

25

MERLIN GERIN 


X D 3 0 1 

5 0 5 0 7 

MERLIN GERIN 


M 

M 

t e s t 

re s e t 

MERLIN GERIN 


X A S 

MERLIN GERIN 


XML316 

1 2 3 4 5 6 7 8 

9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 

MERLIN GERIN 


d é f a u t 

1 2 3 

4 5 6 

7 8 9 

10 11 12 


TEST MENU 

040 K 

MERLIN GERIN 


X D 3 1 2 

5 0 5 3 6 

MERLIN GERIN 


M 

M 

t e s t 

r e s e t 

test 

MERLIN GERIN 

v i g i d i x 

R M 1 0 N 

P 1 0 

P 5 0 

o n P 1 2 

MERLIN GERIN 


X L I 3 0 

d é f a u t 

MERLIN GERIN 


X D 308c 

test 

1 2 3 4 5 6 7 8 

on 

test 

reset 

MERLIN GERIN 

G O 

MERLIN GERIN 

MERLIN GERIN 


X TU3 0 


X M 3 0 c 


TEST MENU 

040 K 

MERLIN GERIN 


X L31 6 

S1 

S2 

P O 

d é f a u t 

MERLIN GERIN 

test 

test 

1 2 3 4 5 6 7 8 

9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 

S1 

S2 

test/reset 



XML308 and XML316 monitoring-locating devices 

DB100958 044149 

interfaces 

basic function: overall and 

individual circuit insulation 

monitoring 

XML308 and XML316 monitoring-locating 

devices combine the functions of: 

c the XM300C insulation monitoring device; 

c XL308 or XL316 insulation fault locators. 

They monitor the insulation of: 

v the overall installation by injection of a lowfrequency 

AC voltage between the 

installation and earth, 

v 8 or 16 individual circuits via detection 

toroids. 



v insulation resistance of the overall 

installation and each monitored circuit, 

v earth leakage capacitance of the overall 

installation and each monitored circuit; 



light), 


– for the overall installation, below 

prevention threshold (orange light and relay 

actuated), 

– for the overall installation and each 

monitored circuit, below adjustable fault 

threshold (red light and two relays actuated, 

including one with a failsafe feature), 

v transient faults on the overall installation 

(orange light), with storage in memory of the 

three last values, 

v faulty circuit by 8 or 16 indicator lights 

(1 for each circuit); 

c display: 

v measurements, 

v events detected by any XL308/316 

locators connected. 

All this data is accessible locally on the LCD 

screen of the insulating monitoring device 

and remotely via the Vigilohm System bus. 


other devices 

communication 

Communication with the supervision system. 

The XLI300 and XTU300 interfaces allow 

monitoring devices + locators 

+ communicating detectors to exchange 

information with a supervision system via 

JBUS protocol. 

The XLI300 and XTU300 interfaces connect 

to the Vigilohm System bus and allow 

timestamping of insulation monitoring events. 

configuration management 

On installations with a number of insulation 

monitoring devices installed to cover variable 

configurations, only one device at a time can 

be allowed to inject a voltage between earth 

and the installation downstream of the 

incoming circuit breaker. For this reason, the 

system must manage the exclusion of other 

connected insulation monitoring devices. In 

addition, each locator must identify the 

monitoring device from which it is to capture 

the signal. 

The exclusion of monitoring devices and their 

identification by the locators is handled in one 

of the following manners: 

c by the XTU300 interface for multiple busbar 

installations with bus coupling; 

c by the XLI300 interface for single busbar 


In both cases, the circuit breaker position 

indication contacts are wired to the all-ornothing 

inputs of the XM300C or 

XML308/316. 

standards 

The XML308 and XML316 devices comply 

with the following standards: 


c class CPI/XA and DLD/M of UTE C 63-080. 

They are implemented in accordance with 


c IEC 61557-8. 

toroids 

The XML308 and XML316 devices operate 

with type A and OA toroids. They are also 

compatible with type XS toroids. 


XML308/316 

insulation 


sensors 

XM300c 

It is possible to monitor more than 8 or 16 

circuits by adding any of the following 

devices: 

c XL308 or XL316 locators that measure the 

insulation resistance on each additional 

circuit; 

c XD308C communicating detectors that 

automatically detect the faulty circuit and 

communicate via an XLI300 or XTU300 

interface; 

c XD301 and XD312 detectors that 

automatically detect the faulty circuit and 

provide local indications. 

The communicating detectors and locators 

are connected to the XML308/316 via the 

Vigilohm System bus. 



of a cubicle or enclosure 



plates that come with the appropriate cutouts; 


cables (double 0.75 mm 2 twisted pairs). The 

resistance between the two most distant 


The coupling capacitance between pairs must 

not exceed 250 nF; 

c connection of toroids using twisted, shielded 

cable (1 pair); 




26

E19502 

MERLIN GERIN 

XML316 

1 2 3 4 5 6 7 8 

9 10 11 12 13 14 15 16 

9 8 10 1 7 2 3 6 4 5 

1. display indicating measurements 

concerning the overall installation or each 

monitored circuit, and information 

concerning the device settings; 

2. red self-test light, indicating device faults. 


occurred. 





settings. 



readings; 



insulation faults; 

c reading measurements made on individual 

circuits by the internal locator; 

c remote access to faults detected by XL308 

or XL316 detectors; 

c choice of language. 

8. two indicator lights continuously display 

the insulation level of the overall installation. 

9. 8 or 16 indicating lights indicate faulty 

circuits. 


occurred. 

test 

i 

auxiliaries 


ZX limiting impedance to create an 

impedance-earthed neutral: page 44. 

PHT1000 subassembly if the device is to be 

used on 1000-1700 V installations: page 44. 


AC or mixed 


AC/DC IT systems with XML308/316 connected to neutral < 760 or 1700 V AC (1) 

with XML308/316 connected to phase < 440 or 1000 V AC (1) 

frequency 

45-400 Hz 



DC or rectified line voltage < 500 or 1200 V DC (1) 

IT systems 


ohmmeter 

digital 


0.1 to 999 kΩ 

signalling for overall instal. number of thresholds 2 (sealable settings) 

for each circuit number of thresholds 1 (sealable settings) 

threshold settings for overall instal. 1st threshold (preven.) 1 to 299 kΩ 

instal. and circuits 2nd threshold (fault) 0.2 to 99.9 kΩ 

number of toroids that can be connected XML308 8 

(1 per channel) XML316 16 

polling time 

15 s. per channel 


2500 V 


220/240 V AC 

380/415 V AC 

500/525 V AC 

auxiliary supply voltage tolerances -15 % to +10 % 


30 VA 

measurement voltage 

6 V 


5 mA max. 


device test 



as standard 

changeover output contact quantity 3 (1 failsafe) 

breaking capacity of AC 400 V p.f. = 0.7 3 A 

output contacts 230 V p.f. = 0.7 5 A 

DC 220 V L/R = 1 ms 0.45 A 

120 V L/R = 1 ms 0.65 A 

48 V L/R = 1 ms 2.5 A 

24 V L/R = 1 ms 10 A 

circuit breaker position indication contacts (3) : voltage supplied 24 V 

(voltage and current supplied by XAS, max. current supplied 10 mA (short-circuit) 

CLI or XTU interfaces) 




weight 



The XML308/316 operates by injecting lowfrequency 





(≤ 5 Hz). 

4.5 kg 





A, OA (XS compatible) 

interfacing possible with 

supervisor 

multi-language display 

English/French 


protected by access code or sealable cover 



(1) The upper limit is extended to the second value by adding a PHT1000 subassembly. 


(3) This contact is an auxiliary switch mounted on the circuit breaker and used to indicate its operating status. 

27

044143 

MERLIN GERIN 


X D 3 0 1 

5 0 5 0 7 

MERLIN GERIN 


M 

M 

t e s t 

r e s e t 

MERLIN GERIN 


X A S 

MERLIN GERIN 


X M L316 

1 2 3 4 5 6 7 8 

9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 

MERLIN GERIN 


d é f a u t 

1 2 3 

4 5 6 

7 8 9 

10 11 12 


TEST MENU 

040 K 

MERLIN GERIN 


X D 3 1 2 

5 0 5 3 6 

MERLIN GERIN 


M 

M 

t e s t 

re s e t 

test 

5 0 

o n P 1 2 P 1 0 

MERLIN GERIN 

v i g i d ix 

R M 1 0 N 

MERLIN GERIN 


X L I 3 0 

d é f a u t 

MERLIN GERIN 


X D 3 08c 

test 

1 2 3 4 5 6 7 8 

on 

test 

reset 

MERLIN GERIN 

G O 

MERLIN GERIN 

MERLIN GERIN 


X T U 3 0 


X M 3 0c 


TEST MENU 

040 K 

MERLIN GERIN 


X L 3 1 6 

S1 

S2 

P O 

d é f a u t 

MERLIN GERIN 

test 

test 

1 2 3 4 5 6 7 8 

9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 

S1 

S2 

test/reset 



XD308C communicating automatic insulation fault detector 

E19504 

MERLIN GERIN 

XD308C 

1 2 3 4 5 6 7 8 

test 

reset 

1 4 5 3 2 6 

1. lights indicating the faulty circuit. 

2. power on 

3. general fault indicator light. 

4. test button for indicator lights. 

5. device internal fault indication (self-test) 

6. self-test fault indicator light. 



low voltage AC 45-400 Hz / DC 

operating threshold 2.5 mA at 2.5 Hz (1) 

polling time 

20 s per channel 

fault indications 

8 indicator lights 

operating tests 

local 

functions tested 

indicator lights and electronics 

clearing of memorised faults 

local reset on front face 

or remote reset from supervisor 


220/240 V AC 

380/415 V AC 

500/525 V AC 


consumption 

6 VA 


2500 V 

connection with insulation monitoring device 

via 4-wire Vigilohm System bus 


weight 

metal case with insulated front 



0.6 kg 

vertical mounting 

temperature range storage - 25 °C to + 70 °C 

operating - 5 °C to + 55 °C 


A (N and O compatible) 

(1) The operating threshold of the XD308C detectors is not adjustable. These devices are designed to detect low-impedance 

faults. The detection threshold varies between 100 Ω and 2 kΩ depending on the characteristics of the installation. 

DB100959 

XD301 XD312 XRM XD308c XL308 / 316 

basic function: local 

insulation fault detection 

The XD308C provides 3 functions: 

c detection of insulation faults; 

c automatic locating of the faulty circuit, 

identified by the number of the illuminated 

indicating light; 

c communication of this information to an 

XLI200 or XLI300 or XTU300 interface for 

transmission to a supervisor or PLC. 

operation 

c XD308C insulation fault detectors are fixed 

receivers connected to XM300C or XML308/ 

316 insulation monitoring devices via the 

Vigilohm System communication bus; 

c the XD308C detector, with 8 channels 

connected to a maximum of 12 toroids 

installed on different circuits of the 

installation, includes the following features 

on its front face: 

v 8 fault indicator lights corresponding to the 

8 channels, 

v 1 general fault indicator light signalling that 

a fault has occurred, 

v 1 light indicating the operating status of 

the device, 

v 2 pushbuttons (self-test and reset). 


c live parts in a disconnectable metal case; 

c vertical mounting on front plate; 

c tunnel terminals for 1.5 mm 2 wires; 

c the devices are interconnected by 

shielded cables (double 0.75 mm 2 twisted 

pairs). The resistance between the two most 

distant points must not exceed 12 Ω. 






toroids 

XD308C insulation fault detectors operate 

with type A and OA toroids. They are also 

compatible with the older type N and O 

toroids. 

28

044146 



XLI200, XLI300, XTU300 and XAS communication interfaces 

use 

When two or more communicating devices 

(XM300C, XML308/316, XL308/316 or 

XD308C) are used or when communication 

with a supervisor is required, it is necessary 

to connect one (and only one) interface to 

the communication bus. 

If no XTU300 or XLI300 interface is 



functions 

The interface allows communication 

between the Vigilohm System and a 

supervisor or PLC using a JBUS type 

protocol (except X25). 

It transmits the information provided by the 


c prevention and fault alarms from XM300C 

or XML308/316 monitoring devices (only 

XM300C for XLI200); 

c fault alarms from XML308/316 or 

XM308/316 locators (except XLI200); 

c insulation resistance and capacitance 

measurements; 

c threshold settings; 

c fault alarms and faulty circuit identification 

from XD308C detectors. 

The interface also allows the thresholds to 

be set form the supervisor. 

device XLI200 XLI300 XTU300 XAS 

function 

interface between the Vigilohm System bus and a supervisor or PLC c c c 

power supply to Vigilohm System bus c c c c 

operates with monitoring device XM300C c c c c 

mon.-loc. device XML308/316 c c c 

locator XL308/316 c c c 

detector 

XD301/312 

XD308C c c c c 

maximum configuration monitoring device XM300C and/or XML308/316 4 (1) 4 4 4 

locator XL308/316 8 8 

detector XD308C 16 8 8 8 


auxiliary supply voltage 50/60 Hz 220/240 V AC 115/127 V AC 115/127 V AC 115/127 V AC 

380/415 V AC 220/240 V AC 220/240 V AC 220/240 V AC 

380/415 V AC 380/415 V AC 380/415 V AC 

500/525 V AC 500/525 V AC 500/525 V AC 

consumption 30 VA c c c c 

dielectric strength 2500 V c c c c 


weight gross 2.228 kg 2.228 kg 2.228 kg 

net 1.864 kg 1.864 kg 1.864 kg 

metal case with insulated front c c c c 

degree of protection 

IP30 

degree of protection of front 

IP40 


interfacing possible with supervisor c c c 

JBUS connector Sub D 9-pin (not supplied) c c c 

communication with other devices via 4-wire data bus c c c c 


operation - 5 °C to + 55 °C 

installation 

vertical mounting on front plate c c c c 

connection 

Vigilohm System bus 1.5 mm 2 tunnel terminals c c c c 

external bus RS485 sub D9 female connector c c c 

communication 

speed (bauds) adjustable 300... 19200 300... 19200 300... 19200 

per fault 9600 9600 9600 

data length (bits) 8 8 8 

parity none none none 

start bits 1 1 1 

stop bits 1 1 1 

(1) only XM300C. 

29

044147 

MERLIN GERIN 


MERLIN GERIN 


MERLIN GERIN 


XD301 

50507 

M 

M 

test 

reset 

MERLIN GERIN 


XM2 0 

MERLIN GERIN 


R C Sp Sa 

S 

menu ok test 

test 

1 2 3 

4 5 6 

7 8 9 

10 11 12 

MERLIN GERIN 


XD312 

50536 

MERLIN GERIN 

GO 

S1 

S2 

M 

M 

test 

reset 

MERLIN GERIN 

P O 

S1 

S2 

P50 

on P12 P1 0 

RM 10N 

MERLIN GERIN 

vigidix 


Vigilohm System 

XM200 insulation monitoring device 

basic function: overall 


The XM200 provides overall insulation 

monitoring of electrical installations by 

injecting a low-frequency AC voltage 

between the installation and earth. 



v insulation resistance, 

v earth leakage capacitance; 



light), 


– below prevention threshold (orange light 

and failsafe relay actuated), 

– below fault threshold (red light and relay 

actuated), 

v transient faults (orange light); 

c display: 

v measurements accessible locally on the 

display unit of the device, 

v value of the last transient fault. 


other devices 

Identification of faulty circuits 

This function is obtained by using the 

XM200 together with XD301/XD312 

automatic insulation fault detectors. 

In addition, an XRM mobile receiver and a 

current probe can be used to determine the 

exact location of the fault on the faulty 

circuit. 

standards 

The XM200 insulation monitoring device 

complies with the following standards: 


c class CPI/XA of UTE C 63-080. 

It is implemented in accordance with 


c IEC 61557-8. 

operating voltage 

c AC IT systems up to: 

v 440 V with neutral not distributed, 

v 760 V with neutral distributed; 

c DC systems up to 500 V. 

The XM200 cannot be adapted to 

installations with higher voltages by 

connecting it to a PHT1000 subassembly. 

For higher voltage, use an XM300C. 

installation 






cut-outs. 

auxiliaries 


ZX impedance: page 44. 


The XM200 operates by injecting lowfrequency 





(≤ 10 Hz). 

E24554 

insuation monitoring 

XM200 

insulation fault 

detection and locating 

sensors 

30

E19051 

MERLIN GERIN 

XM200 

R C Sp Sa O 

kΩ µF kΩ kΩ kΩ S 

menu 

1 6 2 4 5 3 

1. display indicating: 

c the value of the overall insulation 

resistance R; 

c other information as selected via function 

keys. 

2. red self-test light, indicating internal 

XM200 faults. 


occurred. 



settings. 



readings; 


c displaying the value of the last transient 

insulation fault; 

c setting time delays. 

ok 

test 

test 

i 


AC or mixed 


AC/DC IT systems with XM200 connected to neutral < 760 V AC 

with XM200 connected to phase 

< 440 V AC 

frequency 

45-400 Hz 



DC or rectified line voltage < 500 V DC 

IT systems 


ohmmeter 

digital 


0.1 to 999 kΩ 

signalling number of thresholds 2 (sealable settings) 

threshold settings 1st threshold (prevent) 10 to 100 kΩ 

2nd threshold (fault) 0.1 to 20 kΩ 

time delay for signalling 3 settings 0 s,15 s, 30 s 


2500 V 


220/240 V AC 

380/415 V AC 

500/525 V AC 

auxiliary supply voltage tolerances - 15 % to +10 % 


30 VA 

measurement voltage variable 25 V max. 


3 mA max. 


device test 



as standard 

output contacts changeover quantity 2 (1 failsafe) 

breaking capacity of AC 400 V p.f. = 0.7 3 A 

output contacts 230 V p.f. = 0.7 5 A 

DC 220 V L/R = 1 ms 0.45 A 

120 V L/R = 1 ms 0.65 A 

48 V L/R = 1 ms 2.5 A 

24 V L/R = 1 ms 10 A 




weight 


2.5 kg 





behind sealable cover 



fault locating with other devices 

automatic 

detectors XD301/312 

manual 

mobile receiver XRM + probes 


31

044144 



XD301 and XD312 automatic insulation fault detectors 

basic function 

local fault detection 

XD301 and XD312 insulation fault detectors 

have two functions: 

c fault detection (with respect to the fault 

threshold); 

c automatic locating of the faulty circuit. 

operation 

c XD301 and XD312 insulation fault 

detectors are fixed receivers used with (but 

not connected to) XM300C, XML308/316 

and XM200 insulation monitoring devices. 

Via measurement toroids, they detect and 

automatically locate insulation faults 

c the XD312 detector, with 12 channels 

connected to a maximum of 12 toroids 

installed on different circuits of the 

installation, includes the following features 

on its front face: 

v 12 fault indicator lights corresponding to 

the 12 channels, 

v a selector to enable or disable latching of 

transient fault indications until reset; 

c detector XD301 is a single-channel 

version designed for use with one 

measurement toroid. 


c live parts in an insulated case with a 

sealable transparent cover. Width equal to 8 

(XD301) or 12 (XD312) 9 mm width 

modules; 

c horizontal flush or surface mounting on 

DIN rail; 

c tunnel terminals for 1.5 mm 2 wires. 

toroids 

XD301 and XD312 insulation fault detectors 

operate with type A and OA toroids. They 

are also compatible with the older type N 

and O toroids. 

E19500 

1 2 3 

4 5 6 

7 8 9 

10 11 12 

MERLIN GERIN 

XD312 

1 3 2 4 5 6 

1. lights indicating the faulty circuit. 

2. selector to enable or disable transient 

fault indication latching 

3. sealable cover. 

4. general fault indicator light. 

5. test button for indicator lights and output 

relay. 

6. reset button (to clear fault indications). 

test 

reset 

insulation fault detectors XD301 XD312 



low voltage AC 45-400 Hz / DC 

operating threshold 2.5 mA at 2.5 Hz (1) 

polling time 20 s 20 s per channel 

fault indications 1 indicator light 12 channel indicator 

lights (+ 1 general) 

local tests 

for indicator lights and output relay 

clearing of indications 

reset button on device 

latching of transient fault indications 

on/off via selector 

output relay number of contacts 1 failsafe 

breaking capacity AC 400 V p.f. = 0.7 3 A 

of output contacts 230 V p.f. = 0.7 5 A 

DC 220 V L/R = 1 ms 0.45 A 

120 V L/R = 1 ms 0.65 A 

48 V L/R = 1 ms 2.5 A 

24 V L/R = 1 ms 10 A 

auxiliary 50/60 Hz 115/127 V AC 

supply voltage 

220/240 V AC 

380/415 V AC 

500/525 V AC 


consumption 

6 VA 


2500 V 

connection with insulation monitoring device none 


weight 0.3 kg 0.6 kg 

plastic case 

horizontal mounting 

degree of protection flush/surface mounting IP 30 / IP 20 



operating - 5 °C to + 55 °C 


A, OA (N and O compatible) 

toroid for direct connection to case 30 and 50 mm none 

type A toroid 

(1) The operating threshold of the XD301/312 detectors is not adjustable. These devices are designed to detect low-impedance 

faults. The detection threshold varies between 100 Ω and 2 kΩ depending on the characteristics of the installation. 

32

DB101070 

PB100471 

051350 

MERLIN GERIN 

v ig i r e x - v i g i d i x 

MERLIN GERIN 


MERLIN GERIN 


MERLIN GERIN 


X D 3 0 1 

5 0 5 0 7 

M 

M 

MERLIN GERIN 


X M2 0 

t e s t 

r e s e t 

R C Sp 

S 

menu ok test 

test 

1 2 3 

4 5 6 

7 8 9 

10 11 12 

MERLIN GERIN 

G O 

MERLIN GERIN 


X D 3 1 2 

5 0 5 3 6 

S1 

S2 

M 

M 

P O 

t e s t 

r e s e t 

MERLIN GERIN 

S1 

S2 

5 0 

o n P 1 2 P 1 0 

MERLIN GERIN 

v ig id i x 

R M 1 0 N 

MERLIN GERIN 


X D 3 0 1 

5 0 5 0 7 

MERLIN GERIN 


M 

M 

t e s t 

r e s e t 

MERLIN GERIN 


XAS 

MERLIN GERIN 


XML 3 16 

1 2 3 4 5 6 7 8 

9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 

MERLIN GERIN 


d é f a u t 

1 2 3 

4 5 6 

7 8 9 

10 11 12 


TEST MENU 

040 K 

MERLIN GERIN 


X D 3 1 2 

5 0 5 3 6 

MERLIN GERIN 


M 

M 

t e s t 

r e s e t 

test 

5 0 

o n P 1 2 P 1 0 

MERLIN GERIN 

v i g i d ix 

R M 1 0 N 

MERLIN GERIN 


XLI 3 0 

d é f a u t 

MERLIN GERIN 


X D 3 0 8 c 

test 

1 2 3 4 5 6 7 8 

on 

test 

reset 

MERLIN GERIN 

G O 

MERLIN GERIN 

MERLIN GERIN 


X T U 3 0 

vig ilo hm system 

X M 3 0 c 


TEST MENU 

040 K 

MERLIN GERIN 


X L31 6 

S1 

S2 

P O 

d é f a u t 

MERLIN GERIN 

test 

test 

1 2 3 4 5 6 7 8 

9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 

S1 

S2 

test/reset 


XRM mobile fault locating receiver 

and current probes 

XRM receiver 

operation 

The XRM mobile receiver, used with a 

current probe, is mainly intended as an 

enhancement to automatic fault locating 

systems. It can be placed at various points 

along a faulty circuit, capturing the signal 

emitted by an XM300C, XML308/316 or 

XM200 insulation monitoring device to 

determine the exact location of the fault. 

Three current probes are available, the 

XM15, XP50 and XP100. 

The set of live conductors to be tested must 

have a maximum diameter of 12, 50 

and 100 mm respectively. 

display 

The XRM receiver displays a number 

from 0 to 19, corresponding to the insulation 

level: 

c 0: no fault; 

c 19: solid fault (no insulation). 

interfaces 

XP15, XP50 and XP100 current probes. 

Note: the photographs are for information purposes only. 

There are two types of probes that function in the same 

way but are different in shape and colour. 

DB100959 



E24555 

insulation fault 

detection and locating 

XD30 XD31 XRM 

insulation 


XD301 XD312 XRM XD308c XL308 / 316 

sensors 

sensors 

33


Vigilohm TR22A and TR22AH insulation monitoring devices 

043274 

use 

IT systems: 

c LV AC installations up to: 

v neutral distributed: 760 V, 

v neutral not distributed: 440 V; 

c isolated from earth or connected to earth 

through a capacitive impedance. 

TR22H (hospitals) 

c high fault threshold up to 251 kΩ. 

One device only for each separate 

installation. 

operation 

c injection of DC voltage; 

c insulation measurement: using a 

microprocessor device, from the leakage 

current created by the voltage injected 

between the installation and earth. Earth 

coupling capacitances do not affect 

insulation measurement; 

c insulation reading: digital display; 

c 1 alarm threshold pre-set by the user. 


c live part in disconnectable metal case; 

c vertical flush mounting on front plate 

(supplied); 

c connection: 

v disconnectable tunnel terminal block for 

2.5 mm 2 wiring. 

v lug for earthing of exposed conductive 

parts (supplied). 


LV AC IT systems 


phase-to-phase voltage 

with TR22A/AH connected to neutral i 760 V (i 1700 V (1) ) 

with TR22A/AH connected to phase i 440 V (i 1000 V (1) ) 

frequency 

20 to 1000 Hz 

limited in size 

IT subsystem 

ohmmeter type digital 

reading range 

0 to 511 kΩ 

fault signalling number thresholds 1 (sealable) 

threshold setting TR22A 0.7 to 100 kΩ 

TR22AH 

1 to 251 kΩ 

response time 

3 s 

device test operation yes 

thresholds 

yes 


yes 

output changeover quantity 1 

contact breaking capacity AC 400 V p.f. = 0.7 5 A 

DC 230 V L/R = 1 ms 0.45 A 

120 V L/R = 1 ms 0.65 A 

48 V L/R = 1 ms 2.5 A 

24 V L/R = 1 ms 10 A 

impedance 

100 kΩ 

maximum current injected 240 µA 

maximum consumption 

5 VA 


220/240 V AC 

380/415 V AC 

440/480 V AC 

500/525 V AC 


locating signal changeover switch (3) 

yes 

front insulation class 2 


weight 

0.8 kg 

metal case disconnectable mounting vertical 

with insulated front 

degree of protection flush mounted IP 40 

surface mounted IP 40 


temperature range for operation - 5 °C to + 55 °C 

for storage - 40 °C to + 70 °C 

climatic conditions (4) 


mobile 

XGR portable generator and XRM receiver + probes 

(1) For the TR22A, the upper limit is extended to this value by adding a P1 subassembly. This is not possible for the TR22AH. 

(2) Failsafe: the relay is disactivated either on occurrence of a fault or if the auxiliary supply voltage accidentally fails. 

(3) Locating signal changeover switch: this device identifies the faulty feeder during locating by opening each feeder in turn. 

When the faulty feeder is opened, the alarm sounds. 

(4) Suitable for use in all climates: 

c damp heat, equipment not operating (IEC 60068-2-30) 

c damp heat, equipment operating (IEC 60068-2-56) 

c salt mist (IEC 60068-2-52). 

standards 

TR22A 

c IEC 364, chapters 4 and 5; 

c NF C 15-100, paragraphs 413 and 532; 

c UTE C 63-080 (class CPI/C); 

c IEC 61557-8. 

TR22AH 

c UTE C 63-080 (class CPI/MC); 



c NF C 15-211; 

c IEC 61557-8. 

auxiliaries 

c Cardew C surge limiter. Compulsory 

downstream of an MV/LV transformer; 

c ZX impedance; 

c S3 inductive neutral point; 

c P1 additional subassembly for installations 

with voltages from 440 V to 1000 V AC. 

Can be used with TR22A only. 

34

042578 


Vigilohm EM9 and EM9B insulation monitoring devices 

use 

IT systems: 




c one device only for each separate 

installation; 


through a capacitive impedance; 

c EM9: for installations with a high insulation 

level; 

c EM9B: for installations with a low 

insulation level and capacitive installations. 

operation 


c an electronic device measures insulation 

from the leakage current created in the 

installation by the voltage injected between 

the installation and earth and trips the alarm 

threshold pre-set by the user. 

Earth coupling capacitances do not affect 

insulation measurement. 


c live part in moulded, insulating, 

disconnectable, modular case, eight 9 mm 

modules wide, with transparent sealable 

cover; 

c horizontal or vertical mounting on 

symmetrical rail; 

c connection by tunnel terminals for 

2.5 mm 2 wiring, terminals 1 to 14. 

standards 

c UTE C 63-080; 


c NF C 15-100 paragraphs 413 and 532; 

c NF C 15-211; 

c IEC 61557-8. 





with EM9/EM9B connected to neutral 

with EM9/EM9B connected to phase 

frequency 


i 760 V 

i 440 V 

50-60-400-1000 Hz 

IT subsystem 

fault signalling number of thresholds 1 (sealable) 

threshold setting EM9: 10-20-40-60-80-100-120-150 kΩ 

EM9B: 1-2.5-5-10-25-50-75-100 kΩ 

response time 

i 5 s 

device operating test 

local 


as an option 

output contact number 1 (standard or failsafe) 

type of contact 

changeover 

breaking capacity AC 400 V p.f. = 0.7 3 A 

230 V p.f. = 0,7 5 A 

DC 220 V L/R = 1 ms 0.45 A 

120 V L/R = 1 ms 0.65 A 

48 V L/R = 1 ms 2.5 A 

24 V L/R = 1 ms 10 A 


5 VA 

impedance 

100 kΩ 



220/240 V AC 

380/415 V AC 

440/480 V AC 

auxiliary supply voltage tolerances - 15 % + 10 % 


weight 

0.4 kg 

thermoplastic case mounting horizontal 

or vertical 

degree of protection front IP 30 

case IP 20 





fault locating with other device 

mobile 


(1) failsafe: the relay is disactivated either on occurrence of a fault or if the auxiliary supply voltage accidentally fails. 





auxiliaries 

c Cardew C surge limiter (only downstream 

of MV/LV transformer); 


c S3 inductive neutral point. 

35


Vigilohm EM9BV insulation monitoring devices 

042580 

042581 

use 

IT systems: 





installation; 


through a capacitive impedance. 

operation 


c an electronic device measures insulation 


installation by the voltage injected and trips 

the alarm when insulation drops below the 

alarm threshold pre-set by the user. 

Earth coupling capacitances do not affect 

insulation measurement; 

c display of insulation resistance. 





cover; 

c mounting on symmetrical rail: 

v measurement module: horizontal or 

vertical, 

v display module: horizontal; 

c connection by tunnel terminals for 

2.5 mm 2 wiring, terminals 1 to 14. 

standards 

c UTE C 63-080; 


c NF C 15-100 paragraphs 413 and 532; 

c NF C 15-211; 

c VDE 107; 

c VDE 413-2; 

c IEC 61557-8. 





with EM9BV connected to neutral 

with EM9BV connected to phase 

frequency 


< 760 V 

i 440 V 

50-60-400-1000 Hz 

IT subsystem 

ohmmeter type digital 

range 

0 to 511 kΩ 

impedance 

100 kΩ 


fault number of thresholds 1 (sealable) 

signalling threshold setting 1-2.5-5-10-25-50-75-100 kΩ 

response time 

i 5 s 


local 

fail safe device (1) 

optional 

output contact number 1 (stand. or fail safe) 


changeover 

breaking AC 400 V p.f. = 0.7 3 A 

capacity 230 V p.f. = 0.7 5 A 

DC 220 V L/R = 1 ms 0.45 A 

120 V L/R = 1 ms 0.65 A 

48 V L/R = 1 ms 2.5 A 

24 V L/R = 1 ms 10 A 


5 VA 


220/240 V AC 

380/415 V AC 

440/480 V AC 

auxiliary power supply operating range - 15 % to + 10 % 


weight measuring module 0.4 kg 

display module 

0.4 kg 

thermoplastic case mounting measurement module horizontal or vertical 

display module 

horizontal 


case IP 20 


temperature for operation - 5 °C to + 55 °C 

range for storage - 40 °C to + 70 °C 


link between display module and measurement module 


shielded cable, 

1 m max. length 

mobile 

XRG portable generator and XRM receiver + probes 

(1) failsafe: the relay is de-energized by occurrence of a fault or accidental failure of the auxiliary power supply voltage. 





auxiliaries 


c S3 inductive neutral point; 

c Cardew C surge limiter. 

36


Vigilohm EM9T insulation monitoring devices 

042582 

use 

IT systems: 





installation; 


through a capacitive impedance; 

c specially designed for machine control and 

monitoring installations. 

operation 


c an electronic device measures insulation, 


installation by the voltage injected and trips 

the alarm when insulation drops below the 

alarm threshold pre-set by the user. Earth 

coupling capacitances do not affect 

insulation measurement. 





cover; 



c connection by tunnel terminals for 2.5 mm 2 

wiring, terminals 1 to 14. 

standards 

c UTE C 63-080; 



c NF C 15-211; 

c IEC 61557-8. 

auxiliaries 


c S3 inductive neutral point. 




with EM9T connected to neutral 

with EM9T connected to phase 

frequency 



i 380 V 

i 220 V 

50-60-400-1000 Hz 

IT subsystem 

impedance 

100 kΩ 


fault number of threshold 1 (sealable) 

signalling threshold setting 10-20-40-60-80-100-120- 

150 kΩ 

response time 

i 5 s 


local and remote 

output contact number 1 


changeover 


capacity 230 V p.f. = 0.7 5 A 

DC 220 V p.f. = 1 ms 0.45 A 

120 V L/R = 1 ms 0.65 A 

48 V L/R = 1 ms 2.5 A 

24 V L/R = 1 ms 10 A 


5 VA 

auxiliary supply voltage 50/60 Hz 24 V AC 

48 V AC 

115/127 V AC 

220/240 V AC 



weight 

0.4 kg 

thermoplastic case mounting horizontal or vertical 


case IP 20 

other caractéristiques 

temperature for operation - 5 °C to + 55 °C 

range for storage - 40 °C to + 70 °C 



mobile 

XRG portable generator and XRM receiver + probes 





37


Vigilohm TR5A insulation monitoring device 

017422 

use 

IT systems: 

c LV DC installations up to 420 V; 

c isolated from earth. 

operation 

c a device with a high input impedance 

measures the variation in potential of the two 

polarities of the installation compared with 

earth. These variations are transformed into 

insulation signals; 

c auxiliary power comes from the monitored 

installation; 

c if monitoring and signalling are required, 

for an insulation fault evenly divided 

between both polarities, use the Vigilohlm 

System XM200. 


c live part in moulded, insulating 

disconnectable, modular case eleven 9 mm 


cover; 

c horizontal flush or surface mounting on 


c connection by 6.35 mm tab connectors for 

2.5 mm 2 wiring. 

standards 

c UTE C 63-080; 


c NF C 15-100, paragraphs 413.4-3; 

c IEC 61557-8. 


LV DC voltage between polarities 24-42-48-120-220 

260-420 V 


IT subsystem 


fault signalling number of thresholds 1 (sealable) 

threshold setting DC 24 to 48 V installat. 5 to 25 kΩ 

DC 120 V installat. 10 to 50 kΩ 

DC 220 V installat. 30 to 150 kΩ 

DC 260 to 420 V installat. 30 to 150 kΩ 

response time on solid fault 

i 1 s 


yes 

failsafe feature (1) yes as an option 

changeover 

output contact 

number 

breaking AC 230 V p.f. = 0.7 

1 

5 A 

capacity DC 120 V L/R = 1 ms 0.65 A 

supply voltage tolerance (installation) - 20 % to + 20 % 

internal impedance between + or – DC 24 to 48 V installat. 24 kΩ 

polarity and earth DC 120 V installat. 46 kΩ 

DC 220 V installat. 154 kΩ 

DC 260 to 420 V installat. 166 kΩ 

between polarity DC 24 to 48 V installat. 38 kΩ 



DC 260 to 420 V installat. 132 kΩ 


weight 

0.5 kg 

plastic case mounting horizontal 


surface mounting IP 20 






mobile 


(1) failsafe: the relay is disactivated either on occurrence of a fault or if network voltage fails. 





38


Vigilohm SM21 off-line insulation monitoring device 

051346 

use 

monitors de-energised equipment (e.g. 

motors, fire pumps,...) whatever the earthing 

system. 

De-energised installations: 

c AC (up to 690 V) or DC (up to 690 V); 

c when associated with a circuit breaker 

possessing an MN or MX release or with a 

contactor, the SM21 protects motors against 

insulation faults that may be produced 

during operating shutdowns (e.g. due to 

condensation), by initiating an alarm or 

startup lock-out. 

operation 

c injection of DC voltage. 

Voltage is applied, with the motor deenergised, 

between the stator and earth, 

thereby creating a leakage current in the 

motor insulation resistances; 

c 2 pre-set thresholds: 

v 1 prealarm threshold, adjustable in 8 steps 

from 0.5 to 10 MΩ, 

v 1 alarm threshold, adjustable in 8 steps 

from 0.25 to 2 MΩ. 

An electronic device measures insulation 

from the leakage current created by the 

voltage injected and activates the alarm or 

prevents starting when insulation drops 

below the corresponding threshold. 





cover; 



c connection: wires up to 2.5 mm 2 ; 

c the SM21 is used with a contact that 

opens to disconnect the device from the 

installation when the installation is 

energised. 

type of de-energised installation to be monitored 

LV AC IT 

(de-energised) 

DC 

(de-energised) 


phase-to-phase voltage i 690 V (1) 

frequency 

50-60-400-1000 Hz 

voltage between polarities i 690 V (1) 

fault signalling number of thresholds 2 

threshold values prealarm 0.5-1-1.5-2-3-5- 

± 15 % 7,5-10 MΩ 

alarm 0.25-0.5-0.75-1- 

1.25-1.5-1.75-2 MΩ 

response time 

i 1 s 


yes 

alarm inoperative yes by selector switch 

failsafe device (2) as standard (3) 

internal impedance DC 1.6 MΩ 

AC 50-60 Hz 350 kΩ 

changeover number alarm 1 standard 

output contact prealarm 1 failsafe 


capacity DC 120 V L/R = 1 ms 0.65 A 


220/240 V AC 

380/415 V AC 

440/480 V AC 

500/525 V AC 

auxiliary supply voltage tolerances - 15 % à + 10 % 


weight 

0.3 kg 

plastic case mounting horizontal/vertical 


surface mounting IP 20 


temperature withstand for operation - 5 °C to + 55 °C 



(1) depends on rated voltage withstand of the contact used to disconnect the SM21 when the network is energised. 

(2) failsafe: the relay is disactivated on occurrence of a fault or if the auxiliary supply voltage accidentally fails. 

(3) only the first alarm contact. 





standards 

IEC 61557-8. 

39


Vigilohm mobile fault locating kit 

XGR + XRM + probes 

053130 

presentation 

The mobile fault locating kit comes in the 

form of a case containing: 

c a locating signal generator, XGR, supplied 

with 220 - 240 V AC; 

c a locating signal receiver XRM; 

c three tong-type current probes: XP15, 

XP50 and XP100. 

The devices making up the kit and the XGR 

for other voltages are all available 

individually. 

See catalogue number tables. 

use 

The kit is used on LV IT systems (i.e. 

installations with an unearthed or 

impedance-earthed neutral). It enables fault 

locating on: 

c AC installations 50 to 400 Hz; 

c DC installations. 

It is used mainly with insulation monitoring 

devices that inject DC currents (TR22A, 

EM9B or EM9BV, etc.). 

operation 

c the XGR generator injects a 2.5 Hz AC 

voltage between the installation and the 

earth, thereby creating a leakage current 

which passes through the installation 

insulation impedance; 

c the XRM mobile receiver is associated 

with one of the three tong-type probes, 

XP15, XP50 or XP100, and detects this 

leakage current at 2.5 Hz. It displays a value 

between 1 and 19 according to the current 

passing through the probe, thus detecting 

the leakage current; 

c three current probes are available, the 

XP15, XP50 and the XP100, for cables with 

diameters up to 12, 50 and 100 mm 

respectively. Older probe models are not 

compatible with the XRM. 

047166 

051350 


LV AC or mixed 


AC/DC IT systems with XGR connected to neutral 760 V 

with XGR connected to phase 440 V 

frequency 

45 to 400 Hz 

DC or rectified voltage between polarities 500 V 

IT systems 


auxiliary supply XGR voltage 115 to 525 V AC 

maximum consumption 15 VA 

XRM IEC alkaline 9 V cell PP3 or 

6 LR61 type 

not supplied 

display XRM type digital 

scale 0 to 19 

calibration XRM by potentiometer 

impedance XGR 40 kΩ 

maximum current injected XGR 2.5 mA 


weight XGR 0.85 kg 

XRM 

0.2 kg 

case XGR plastic portable 

XRM plastic portable 

associated equipment 

probes (1) XP15 for cables up to ø 12 mm 

XP50 for cables up to ø 50 mm 

XP100 for cables up to ø 100 mm 

(1) Maximum diameter of all live conductors together. 

XGR locating signal generator 

PB100471 DB101070 

XP15, XP50 and XP100 probes. 

Note: the photographs are for information purposes only. 

There are two types of probes that function in the same 

way but are different in shape and colour. 

XRM locating signal receiver 

40


toroids 

051352 


E24281 

E24290 

042589 

Closed toroids (type A) 

Split toroids (type OA) 

use 

The toroids are used to detect the earth 

leakage currents. 

They are used with the Vigilohm System for 

the detection, locating and measurement of 

earth fault currents on IT systems. 

Closed toroids (type A) are suitable for new 

installations and extensions. 

Split toroids (type OA) are suitable for 

renovated installations and extensions. 

toroids type A type OA 


transformation ratio 1/1000 1/1000 

maximum permissible current: c c 

1 kA continuous - 5 kA/1.5 s - 100 kA/0.05 s 


weight (kg) ø 30 0.120 

ø 50 0.200 

ø 80 0.420 

ø 120 0.590 

ø 200 1.320 

ø 300 2.230 

ø 46 1.300 

ø 110 3.200 


temperature range for storage – 55 °C to + 85 °C – 55 °C to + 85 °C 

for operation – 35 °C to + 70 °C – 35 °C to + 70 °C 

degree of protection IP30 (IP20 connectors) IP30 (IP20 connectors) 

functions 

These toroids detect leakage current and 

transmit a proportional signal to the 

associated receiver. 

compatibility 

All type A and OA toroids are compatible 

with the various devices of the Vigilohm 

System range: XD301, XD312, XD308C, 

XL308, XL316, XML308 and XML316. 


Closed toroids (type A) 

c enclosed in an insulated casing; 

c 2 possibilities for mounting: 

v diam. 30-50-80 mm on symmetrical rail, 

v all diameters on plate and cables; 

c connection: 

v diam. 30 to 200 mm by tunnel terminals for 

0.22 mm 2 wires (minimum), 

v diam. 300 mm by 6.35 mm tab connectors. 

Split toroids (type OA) 

c enclosed in an insulated casing; 

c mounting on plate and cable; 

c connection by 5 mm diam. screws for 

0.22 mm 2 wires. 

41

E13856A 

N 1 2 3 PE N 1 2 3 PE 

Figure 1. 

E13856B 

Figure 2. 

installation precautions 

Immunity to line overcurrents 

Line overcurrents, due to motor starting or 

transformer energising, may result in 

unnecessary fault detection by the detector. 

A number of simple precautions can help 

prevent this from happening: when used 

together they are even more effective: 

c place the toroid on a straight part of the 

cable; 

c carefully centre the cable in the toroid; 

c use a toroid with a diameter far larger than 

the diameter of the cable (2 x diameter), 

(figure 1). 

For severe operating conditions, use of a 

mild steel sleeve placed around the cable, in 

the toroid, considerably increases immunity. 

Recommended characteristics 

c mild steel foil, 1/10 mm thick, to be wound 

several times around the cable in the toroid 

(at least 1 mm thick); 

c internal diameter of toroid > 1.4 x external 

diameter of the cable bundle (figure 2); 

c toroid-detector link: 

v resistance i 3 Ω, 

v cross-sectional area of wires: 0.75 mm 2 to 

1.5 mm 2 , 

v maximum length: 50 m. 

sensors type A closed toroid type OA split toroid 

general characteristics 

type of installation to be monitored LV 50/60/400 Hz LV 50/60/400 Hz 

insulation voltage Ui 1000 V 1000 V 

closed sensor b - 

split sensor - b 

operating temperature - 35 °C / + 70 °C - 35 °C / + 70 °C 

storage temperature - 55 °C / + 85 °C - 55 °C / + 85 °C 

degree of protection IP30 (IP20 connectors) - 


transformation ratio 1/1000 1/1000 

3-phase short-circuit withstand current Icw of 100 kA/0.5 s b 

b 

differential short-circuit withstand current IDw of 85 kA/0.5 s b 

b 

(as per IEC 60947-2 in kA rms) 

overvoltage category IV IV 

rated impulse withstand voltage Uimp (kV) 12 12 

sensor characteristics TA30 PA50 IA80 MA120 SA200 GA300 POA GOA 

rated operational current Ie (A) 65 85 160 250 400 630 85 250 

max. cross-section area of conductors per phase 25 50 95 240 2 x 185 2 x 240 50 240 

(mm 2 of copper) 


type of sensor Diameter ø (mm) Weight (kg) Diameter ø (mm) Weight (kg) 

toroid TA30 30 0.120 - - 

toroid PA50 50 0.200 - - 

toroid IA80 80 0.420 - - 

toroid MA120 120 0.590 - - 

toroid SA200 200 1.320 - - 

toroid GA300 300 2.230 - - 

toroid POA - - 46 1.300 

toroid GOA - - 110 3.200 

mounting 

horizontally or vertically on symmetrical DIN rail TA30, PA50, IA80, MA120 - 

on plain or slotted backplate or profiled sheet metal TA30, PA50, IA80, MA120, SA200 POA, GOA 

on cable IA80, MA120, SA200, GA300 - 

environment 

damp heat, equipment not operating (IEC 60068-2-30) 28 cycles + 25 °C/+ 55 °C / HR 95 % 28 cycles + 25 °C/+ 55 °C / HR 95 % 

damp heat, equipment operating (IEC 60068-2-56) 48 hours, environment category C2 48 hours, environment category C2 

salt mist (IEC 60068-2-52) KB test, severity 2 KB test, severity 2 

degree of pollution (IEC 60664-1) 3 3 

calorific value (MJ) 0.98 1.42 3.19 3.89 7.05 - 8.02 16.35 

(1) Allows use in all climates. 

42


auxiliaries 

selection of auxiliaries 

A number of accessories are required for 

Vigilohm installations; other optional 

accessories can be provided: 

c essential auxiliary; 

v optional auxiliary. 

Vigilohm XM200 XGR TR22A TR22AH EM9 cat. No 

XM300C 

EM9B 

XML308 

EM9T 

XML316 

U < 760 VAC (4) 760 à 1700 VAC (4) 

U < 440 VAC (5) 440 à 1000 VAC (5) 

U < 500 VDC (6) 500 à 1200 VDC (6) 

"250 V " Cardew C (1) or c c c c (2) 50170 

"440 V" Cardew C (1) or c c c c (2) 50171 



Cardew C base v v v v v 50169 

P1 subassembly c (3) 50211 

ZX limiting impedance v v v v v 50159 

S3 inductive neutral point i 380V v v v 50113 

PHT 1000 additional subassembly c except XM200 50248 

(1) See choice of the type of Cardew C (250, 440, 600 or 1000 V) below. 

(2) The use of a Cardew C is unnecessary with the EM9T. 

(3) Necessary for TR22A used on installations with U > 440 V. 

(4) Neutral distributed. 

(5) Neutral not distributed. 

(6) DC installation. 

041857 

auxiliary 


Cardew C surge limiter 

c on LV network with isolated or impedanceearthed 

neutral; 

c connected to the secondary of the MV/ 

LV transformer to discharge overvoltages to 

earth; 

c capable of withstanding the short-circuit 

current of the transformer; 

c its operation causes continuous indication 

on the insulation monitor. 

E12128 

MV/LV 

cardew C 

L3 

L2 

L1 

N 

connection 

Characteristics 

c non-arcing voltage at 50 Hz 

160 

130 

50 

i 1.6 x nominal U; 

c certain arcing voltage at 50 Hz 

u 2.5 x nominal U (3 x nominal U for 220 V); 

c maximum current after arcing: 

2 Ø13 

40 kA/0.2 sec; 

Ø70 

2 Ø7 

c insulation resistance > 10 10 ohms; 

M12 

100 

c cartridge not reusable; 

c temperature range: 

v operating: - 5 °C to + 40 °C, 

v storage: - 25 °C to + 70 °C. 

Standards 

NF C 63-150, NF C 15-100. 

Weight: 1 kg. 

Cardew selection table 

The selection depends on: 

c the operating voltage Un of the installation; 

c the installation insulation level; 

c the connection point (neutral-earth or 

phase-earth). 

Un: ph.-ph. operat. voltage of the AC instal. Ui arcing voltage Cardew C 

neutral distributed neutral not distributed "type" 

U i 380 V U i 220 V 400 V < Ui i 750 V "250 V" 

380 V 



Connecting conductor size 

c cable or bar with a size adapted to the 

transformer rating 

c the connecting conductor should be 

considered to be a protective conductor 

(PE) and the calculation of its crosssectional 

area must satisfy applicable 

installation standards, considering that this 

part of the installation is protected by 

protective devices located upstream of the 

MV/LV transformer; 

c according to standard IEC 364, the 

formula for the calculation of the of the size 

of the PE conductor is: S = √I 2 t/k 

where S is the cross-sectional area of the 

E12043 

PE conductor in mm 2 , 

I is the fault current, t is the operating time of 

the protective device and k is a coefficient 

that depends on the metal and insulation 

material used for the conductor. 

c recommendation: if insulation monitoring is 

provided using the Vigilohm System, install a 

type A toroid on the Cardew earthing circuit 

in order to monitor operation of the Cardew. 

The toroid can be connected to an XD301/ 

312 detector or an XL308/316 or XML308/ 

316 locating device. 

43

019303 

ZX limiting impedance 

subassembly 

Connection 

c creates an installation with an impedanceearthed 

neutral; 

c remains connected during fault locating at 

2.5 Hz: 

v 1500 Ω at 50 Hz, 

v 1M Ω at 2.5 Hz; 

c U i 500 V AC. 

MV/LV 

L3 

L2 

L1 

N 

E24299 

E24300 

Dimensions, mounting 

Weight: 3.500 kg 

360 

380 

1 2 

190 

170 

4 Ø8,2 

15 

185 

1 

ZX 

2 

IMD 

019301 

S3 inductive neutral point 

subassembly 

Connection 

c creates an artificial neutral point for 

insulation monitoring, with the main circuitbreaker 

open; 

c U i 380 V AC. 

MV/LV 

L3 

L2 

L1 

N 

E24336 

1 2 3 

E24337 



1 2 3 4 

130 

150 

166 

150 

4 Ø6 

15 

70 

IMD 

S3 

4 

044139 

PHT1000 

additional subassembly 

E19507 

Connection 

c for use with the Vigilohm System 

XM300C and XML 308/316 on the following 

installations: 

v 440 V AC i U i 1000 V AC, neutral not 

distributed, 

v 760 V AC i U i 1700 V AC, neutral 

distributed, 

v 500 V DC i U i 1200 V DC: installation. 

MV/LV 

E19524 


Weight: 2 kg 

200 

184 

110 

220 

4 holes Ø 7 

3 

PHT 

2 

13 

XM 

14 

22 

150 

26 

80 

019302 

P1 subassembly 

Connection 

c can be used to connect a TR22A to 

installation > 440 V AC; 

v 440 V AC i U i 1000 V AC, neutral not 

distributed, 

v 760 V AC i U i 1700 V AC, neutral 

di 

distributed. 

E24330 



128 140 

E24311 

Neutral distributed 

4 

1 5 

RC 

E24312 

Neutral not distributed 

4 

1 5 

RC 

= = 

63 

Ø5,2 

40 

65 

P1 

cardew C 

6 

1 

CPI 

6 

P1 

cardew C 

6 

1 

IMD 

6 

44



3/ installation 

and connection 

page 

dimensions 46 

connection 49 

45

Vigilohm: installation and connection 

dimensions 

E24341 

XM200, XM300C, XL308, XL316 

Flush mounting 

E24342 

Cutout 

129 

112 

9,5 

192 

12 

153 

148 

E24343 

XML308, XML316 


E24344 

Cutout 

129 

112 

9,5 12 

192 

229 

224 

E24317 

XD308C 


E24318 

Cutout 

129 

112 

9,5 94 12 

76 

71,5 

E12095 E24319 

E26419 

XD301, XD312 


45 

65 

37,5 

49,5 

73,5 


XD301 

XD312 

9,5 192 8 

XRM + probes 

145 

Cutout 

XD301 

5 

76 

57 

73 

XLI200, XLI300, XTU300, XAS 

XRM manual receiver 

E26419 

129 

XD312 

2 Ø4,2 

2 Ø4,2 

66 

66 

46 

46 

6,5 

10 

7 93 

107 

E26421 

E24318 

Cutout 

XP15, XP50 and XP100 probes 

112 

71,5 

E26420 

Surface mounting 

XD301 

2 Ø4,2 

4,5 

57 

72 

81 

66 

11 

Inside dimensions 

XP15: ø 12 mm. 

XP50: ø 50 mm. 

XP100: ø 100 mm. 

XD312 

2 Ø4,2 

6,5 

93 

106 

81 

66 

7,5 

37 

80 

46

TR22A, TR22AH 

Flush mounting IP40 

Cutout 

E26444 

E26445 

129 

112 

9,5 94 8 

76 

71,5 

EM9, EM9B, EM9BV, EM9T, SM21 

Mounting on symmetrical rail IP20 Cutout Mounting on panel: use fixing lugs 20269. 

E21457 

E26422 

45 

81 

46 

44 

60 

65,5 

72 

73 

TR5A 

Flush mounting IP30 

(behind panel) 

Door cutout 

and holes 

Ø4,2 

Mounting on symm. 

rail IP20 

Mounting on panel 

IP20 

2 screws M4 

Auxiliary subassembly 

aa > 220 V 

E24297 

E12139 

32 

45 

44,5 77 

64 

77 

99 

26 

68 

53 

99 

37 99 

XGR 

E26423 

59 

189 

108 

47


dimensions (cont.) 

toroids (type A and OA) 

type A types A type A type OA 

ø 30 and 50 ø 80 to 200 ø 300 ø 46 and 110 

E24291 

2 Ø4,5 

E18644 

Ø 

Ø5 

E24293 

E24294 

Ø5 

5 

Ø 

C 

B 

8 

F 

D 

E 

29 

16 

4 

21 

F H 

J 

E 

1 2 3 

G 

C 

D 

L 

K B 

Ø 

L 

H 

B 

Ø 

L 

H 

type ø B C D E F 

TA30 30 31 60 53 82 50 

PA50 52 45 87 66 108 60 

type ø B C D E F G H J K L 

IA80, IE80 80 122 26.5 35 150 80 55 40 126 65 44 

MA120, ME120 120 164 26.5 35 190 80 55 40 166 65 44 

SA200, SE200 196 256 29 37 274 120 90 60 255 104 46 

type ø H L 

GA300 299 29 344 

type ø H L B C 

POA 46 68 148 57 38 

GOA 110 68 224 76 44 

Mounting examples for type A toroids 

On XD301detector, ø 30 to 50 On rail, ø 30 to 80 mm On plate or section, type A, ø 30 to 200 mm 

044866 

044865 

042592 042593 

042591 

042590 

On cable, ø 120 to 300 mm 

48

1 

9 

2 

10 

3 

11 

4 

12 

5 

13 

6 

14 

7 

15 

8 

16 

S 

test 

test 

test 


connection 

E25115 

XM200 

MERLIN GERIN 


XM200 

E19526 

ut 

10 

9 

8 

7 

6 

5 

prevention 

(failsafe 

feature) 

fault 

XM200 

E19515 

MV/LV 

cardew C 

3 

2 

1 

N 

4 

XM200 

11 

R C Sp Sa 

menu ok test 

MV/LV 

3 

2 

1 

Tunnel terminals for 1.5 mm 2 wiring 

Legend 

aa: AC auxiliary supply a -15 %, +10 %, 50-60 Hz 

ut: application 

r: installation 

terminal 11: earth connection by round lug (4 mm 

diameter) to be crimped. 

r 

aa 

4 

3 

2 

1 

11 

cardew C 

+ 

- 

4 

XM200 

11 

4 

XM200 

11 

E27116 

XM300C 

MERLIN GERIN 


XM300c 


040 K 

TEST MENU 


Legend 






*connection supplied with PHT1000. 

DB101055 

ut 

ut 

aa 

12 

11 

10 

9 

8 

7 

6 

5 

4 

2 

1 

fault 

(failsafe 

feature) 

fault 

prevention 

13 

14 

22 

address 

1 

23 

24 

r 

21 

I1 

20 

I2 

19 

18 

17 

16 

15 

XM300C 

1 

4 

V- 

B 

V+ 

S 

E19506 

MV/LV 

cardew C 

MV/LV 

cardew C 

- 

14 

XM300C 

13 

+ 

3 

2 

1 

N 

14 

XM300C 

13 

3 

2 

1 

14 

XM300C 

13 

E17296 

ut 

12 

11 

10 

9 

8 

7 

6 

5 

4 

fault 

(failsafe 

feature) 

fault 

E27168 

* 

23 

24 

XM300C 

PHT1000 

aa 

2 

1 

13 

14 

22 

18 

17 

16 

15 

V- 

B 

V+ 

S 

1 2 

3 

r 

E32439 

XML308, XML316 

MERLIN GERIN 


XML31 6 


040 K 

TEST MENU 

DB101056 

ut 

ut 

aa 

12 

11 

10 

9 

8 

7 

6 

5 

4 

2 

1 

fault 

(failsafe 

feature) 

fault 

prevention 

13 

14 

22 

address 

1 

23 

24 

21 

I1 

20 

I2 

19 

18 

17 

16 

15 

1 

4 

V- 

B 

V+ 

S 

XML308 

XML316 

t9 t16 t1 t8 

1 2 1 2 1 2 1 2 

9-1 

9-2 

10-1 

10-2 

11-1 

11-2 

12-1 

12-2 

13-1 

13-2 

14-1 

14-2 

15-1 

15-2 

16-1 

16-2 

1-1 

1-2 

2-1 

2-2 

3-1 

3-2 

4-1 

4-2 

5-1 

5-2 

6-1 

6-2 

7-1 

7-2 

8-1 

8-2 

E19509 

MV/LV 

cardew C 

MV/LV 

cardew C 

3 

2 

1 

N 

14 

XML316 

13 

3 

2 

1 

14 

XML316 

13 


Legend: 




t: toroid A or OA 



E17296 

ut 

12 

11 

10 

9 

8 

7 

6 

5 

4 

fault 

(failsafe 

feature) 

fault 

r 

+ 

- 

14 

XML316 

13 

49

50507 

test 

reset 

test 

on 

50536 

1 

9 

2 

10 

3 

11 

4 

12 

5 

13 

6 

14 

7 

15 

8 

16 

test/reset 

test 


connection (cont.) 

E32441 

XL308, XL316 

MERLIN GERIN 


XL316 

E19510 

ut 

aa 

12 

11 

10 

9 

8 

7 

6 

5 

4 

2 

1 

fault 

(failsafe 

fealure) 

fault 

XL308 

XL316 

t9 t16 t1 t8 

1 2 1 2 1 2 1 2 

9-1 

9-2 

10-1 

10-2 

11-1 

11-2 

12-1 

12-2 

13-1 

13-2 

14-1 

14-2 

15-1 

15-2 

16-1 

16-2 

1-1 

1-2 

2-1 

2-2 

3-1 

3-2 

4-1 

4-2 

5-1 

5-2 

6-1 

6-2 

7-1 

7-2 

8-1 

8-2 

address 

3 

13 

18 

17 

16 

15 

1 

8 

V- 

B 

V+ 

S 

E17296 

ut 

12 

11 

10 

9 

8 

7 

6 

5 

4 

fault 

(failsafe 

feature) 

fault 


Legend: 





diameter) to be crimped 

E32443 

XD308C 

MERLIN GERIN 


XD308c 

E19525 

aa 

1 

2 

t1 

t8 

XD308c 

- 

V 

B 

V+ 

S 


Legend: 



1 2 3 4 5 6 7 8 

3 

4 

5 

6 

7 

8 

9 

10 

11 

address 

4 

1 

8 

E27125 

XD301 

E19516 

t 


Legend: 




XD301 

5 6 

MERLIN GERIN 


XD301 

test 

M 

reset 

M 

7 

8 9 10 11 

aa 

ut 

E19520 

XD312 

E19517 

n° 1 

n° 2 

n° 12 

1 2 3 

4 5 6 

MERLIN GERIN 


XD312 

test 

1 2 

XD312 

3 4 5 6 7 8 9 10 1112 

7 8 9 

10 11 12 

M 

reset 

M 

15 16 21 22 23 26 

aa 

ut 


Legend: 




50

défaut 

E32434 

XLI200, XLI300, XTU300, 

XAS 

MERLIN GERIN 


XLI300 

XLI300 Sub D9 

RS485 

1 signal ground 

4 received data – 

5 transmitted data – 

8 received data + 

9 transmitted data + 

XTU300 Sub D9 

RS232 

2 received data 

3 transmitted data 

5 signal ground 

E16124 

XLI200/XLI300/XTU300 

JBUS 

address 

= H L 

not 

used 

H 

L 

1 6 

5 9 

RS232 

1 6 

5 9 

RS485 

1 : GND 

4 : B'(RD-) 

5 : B(TD-) 

8 : A'(RD+) 

9 : A(RT+) 

13 

18 V- 

17 B 

16 V+ 

15 S 

1 

2 

aa 

c never connect more than one interface to 

the Vigilohm System bus 

c to connect devices to the communication 

bus (shielded, double twisted pair), it is 

recommended to interconnect their 

respective terminals S, B, V + and V–. 

E16126 

XAS 

18 V- 

17 B 

16 V+ 

15 S 

13 

1 

2 

aa 

Example of line connection 

E19518 

XM300c 

V- V- V- V- V- 

B 

XLI300 

XL308 B 

B 

XD308c 

XML308 B 

B 

XTU300 

V+ 

XL316 V+ 

V+ 

XML316 V+ 

XAS V+ 

S 

S 

S 

S 

S 

51


connection (cont.) 

When coupling two installations, one of the 

two Vigilohm insulation monitors must be 

disconnected momentarily. 

E12008 

IMD 

MV 

LV 

IMD 

MV 

LV 

E27111 

E24322 

TR22A/TR22AH 

MERLIN GERIN 

vigilohm 

TR 22AH 

test 

K Ω 

E18471 

aa 

1 2 3 

TR22A 

TR22AH 

4 8 9 

U < 760 V U < 440 V U < 760 V U < 440 V 

MV/LV 

cardew C 

L3 

L2 

L1 

N 

5 

TR 

22A 

4 

E24323 

MV/LV 

cardew C 

L3 

L2 

L1 

5 

TR 

22A 

4 

E24324 

LV/LV 

5 

TR 

22A 

4 

L3 

L2 

L1 

N 

E24325 

LV/LV 

ut 

7 

5 

TR 

22A 

4 

L3 

L2 

L1 

rS3P1 

5 6 10 

E26347 

U < 1700 V 

1 

P1 

5 

6 

10 

TR 

22A 

4 

L1 

L2 

L3 

N 

E26346 

2.5 mm 2 wiring 

Legend: 

aa: AC auxiliary supply, 50-60 Hz 

-15 %, +10 % 

12 1 3 

110-127 V a 110-127 V 

220/415 V a 220-240 V 380-415 V 

440/525 V a 440-480 V 500-525 V 


S3: S3 subassembly (optional) 


P1: P1 subassembly (optional) 

Use with failsafe feature: the normally 

excited output relay is de-energised in the 

event of an auxiliary voltage failure (of 

internal or external origin) or an insulation 

fault. 

auxiliary: S3 inductive 

U < 1000 V neutral point subassembly 

1 

6 

P1 

5 

10 

TR 

22A 

4 

L1 

L2 

L3 

E24326 

1 2 3 

4 

S3 

L3 

L2 

L1 

N 

6 

TR 

22A 

4 

E27134 

TR5A 

E26417 

1 

r 

2 

+ 

TR5A 


6.35 mm tab connector 

Legend: 

r: installation DC power supply, - 20 %, + 20 % 


r > 220 V 

MERLIN GERIN 

TR5A 

3 

6 7 8 

E18566 

1 2 

3 

TR5A 

9 

r 

– + 

1 2 3 4 

auxiliary 

5 plate TR5A 

u. t. 

Note: for a TR5A with failsafe feature, use terminals 

6 and 7. 

E26418 

2 

TR 

5A 

1 

3 

+ 

E27112 

SM21 

MERLIN GERIN 

vigilhom 

SM21 

1 2 3 4 5 6 7 

0,75 

0,5 

1,0 1,25 

1,5 

1,75 1,0 

1,5 

2,0 3,0 

AL. REL. 

OK 

5,0 

7,5 

test 

o f on 

E26348 

alarm 

1 2 3 

8 9 

SM21 

11 13 

pre-alarm 

5 6 7 

E26349 


Legend: 

aa: supply 

L1 

L2 

L3 

N 

13 

SM 

21 

11 

M 

50761 

0,25 

Sa 

2,0 

MΩ 

0,5 10 

Sp 

AL. REL. 

8 

9 

10 

11 

12 

13 

14 

a. a. 

c. a. 

Note: make sure that the auxiliary contact of the motor 

control system can withstand the rated voltage when the 

contact is open. 

52

50570 

50558 

50582 

40 

20 

5 

2,5 

60 80 

10 

150 

10 25 

1 

100 

100 

120 

50 

75 

S3 S3 

E27114 

EM9, EM9B, EM9T 

1 2 3 4 5 6 7 

MERLIN GERIN 

vigilohm 

EM9T 

on test 

E18465A 

1 

ut 

2 3 

EM9/EM9B 

E18461 


MV/LV 3 MV/LV LV/LV 

2 

1 

3 

2 

1 

N 

13 

13 

13 

cardew EM cardew EM 

EM 

C 

14 

C 

14 

14 

3 

2 

1 

E27117 

EM9BV 

8 

9 

MERLIN GERIN 

vigilohm 

EM9BV 

9 

kΩ 

10 

11 

12 

13 

14 

1 2 3 4 5 6 7 

8 

kΩ 

on 

test 

10 

11 

12 

13 

14 

E18465B 

8 9 13 14 

aa 

ut 

tad 

1 2 3 

4 5 

r 

EM9T 

8 9 13 14 

E18462 

13 

EM 

14 

13 

EM 

14 

EM9, EM9B 

Use with failsafe feature: the normally 

excited output relay is de- energised in the 

event of an auxiliary voltage failure (of 

internal or external origin) or an insulation 

fault. 

EM9T 

c remote test: terminals 4 and 5; 

c compliance with standard UTE C63-080. 

E27113 

1 2 3 4 5 6 7 

aa 

r 

MERLIN GERIN 

vigilohm 

EM9BV 

E18556 

ut 

8 

9 

10 

11 

12 

13 

14 

1 

2 3 

5 6 7 

EM9BV 

5 6 7 

Legend: 

aa: auxiliary supply, - 15 % + 10 % 



tad: remote test 

8 9 13 14 

8 9 

aa 

r 

aa 

E27423 

XGR 

E27426 

a.a 

E27424 

MV/LV 

3 

2 

1 

N 

a.a: auxiliary supply 

r.: installation 

IMD 

XGR 

MERLIN GERIN 

XGR 

+ 

E27425 

- 

r 

IMD 

XGR 

53


Vigilhom 

4/ catalogue numbers 

page 

Vigilohm insulation monitoring 56 

Vigilohm System 58 

Vigilohm System: accessories 59 

55

vigilohm 

EM9T 

50582 

vigilohm 

EM9BV 

50558 

vigilohm 

EM9BV 

50558 

vigilohm 

EM9BV 

50570 

vigilohm 

EM9T 

50582 

test 

40 

20 

5 

2,5 

2,5 

40 

5 

20 

60 80 

10 150 

10 25 

1 100 

1 100 

60 80 

10 25 

10 150 

100 

120 

50 

75 

50 

75 

100 

120 

on 

on 

test 

S3 S3 

test 

S3 S3 

Catalogue numbers 

Vigilohm insulation monitoring 

Vigilohm TR22A/TR22AH 

E27111 

Vigilohm EM9 

E27114 

Vigilohm EM9B 

E27117 

Vigilohm EM9BV 

E27117 

MERLIN GERIN 

9 

vigilohm 

TR 22AH 

1 2 3 4 5 6 7 

8 

MERLIN GERIN 

9 

1 

0 

1 

0 

1 

1 

1 

1 

1 

2 

1 

2 

kΩ 

1 

3 

1 

3 

1 

3 

1 

4 

K Ω 

on test 

1 2 3 4 5 6 7 

8 

MERLIN GERIN 

9 

1 

0 

1 

1 

1 

2 

kΩ 

1 2 3 4 5 6 7 

8 

kΩ 

1 

3 

1 

3 

1 

4 

1 

4 

Installation voltage (neutral not distributed): < 440 V AC 

With rectifiers: balanced fault detection 

TR22AH: special hospital version 

TR22A 

Single phase auxiliary power 

supply (V) 

TR22AH 


supply (V) 

115/127 V AC 50/60 Hz 50395 

220/240 V AC 50/60 Hz 50396 

380/415 V AC 50/60 Hz 

440/480 V AC 50/60 Hz 50397 

500/525 V AC 50/60 Hz 

115/127 V AC 50/60 Hz 50398 

220/240 V AC 50/60 Hz 50399 

380/415 V AC 50/60 Hz 

440/480 V AC 50/60 Hz 50391 

500-525 V AC 50/60 Hz 


Installations with high installation levels (adjustable threshold 10-150 kΩ) 

EM9 

Standard model 


supply (V) 

115/127 V AC 50/60 Hz 50595 50596 

220/240 V AC 50/60 Hz 50597 50598 

380/415 V AC 50/60 Hz 50599 50600 

440/480 V AC 50/60 Hz 50601 50602 

Fail safe model 


Installations with low insulation levels and capacitive installations (adjustable threshold 1-100 kΩ) 

EM9B 




supply (V) 

115/127 V AC 50/60 Hz 50555 50556 

220/240 V AC 50/60 Hz 50557 50558 

380/415 V AC 50/60 Hz 50559 50560 

440/480 V AC 50/60 Hz0 Hz 50561 50562 


Digital display of insulation resistance (adjustable threshold 1-100 kΩ) 

EM9BV 



supply (V) 

115/127 V AC 50/60 Hz 50568 50569 

220/240 V AC 50/60 Hz 50570 50571 

380/415 V AC 50/60 Hz 50572 50573 

440/480 V AC 50/60 Hz 50574 50575 


E27113 

1 2 3 4 5 6 7 

MERLIN GERIN 

8 9 1 

0 

1 

1 

1 

2 

1 

3 

1 

3 

1 

4 

Vigilohm EM9T 

E27114 

1 2 3 4 5 6 7 

MERLIN GERIN 

kΩ 

on test 

8 9 1 

1 

1 

1 

1 

0 

1 

2 

3 

4 


Machine control and monitoring (adjustable threshold 10-150 kΩ) 

EM9T 


supply (V) 

24 V AC 50/60 Hz 50581 

48 V AC 50/60 Hz 50582 

115/127 V AC 50/60 Hz 50583 

220/240 V AC 50/60 Hz 50584 

56

on P12 

MERLIN GERIN 

vigidix 

RM 10N 

vigilhom 

50761 

P50 

P1 0 

vigilohm 

TR5A 

120V 

1 2 3 4 5 

6 7 8 9 10 

50381 

0,75 

0,5 

1,0 1,25 

0,25 

Sa 

2,0 

1,5 

1,75 

1,5 

1,0 

2,0 3,0 

0,5 

Sp 

10 

5,0 

7,5 

o f on 

test 

20 35 

10 

50 


Vigilohm insulation 

monitoring (cont.) 

Vigilohm TR5A 

E32741 

1 2 3 4 5 

MERLIN GERIN 

6 7 8 9 1 

0 

1 

0 

kΩ 

Installation voltage (neutral not distributed): < 420 V DC 

(adjustable threshold 5-150 kΩ) 

TR5A 



Power supplied by monitored 24 V DC 50340 50344 

installation (V) 

42/48 V DC 50341 50345 

120 V DC 50342 50346 

220 V DC 50343 50347 

260 V DC 

(1) 

50350 

420 V DC 

(1) 

50351 

(1) with supplied external subassembly. 

Vigilohm SM21 

E58548 

Installation voltage: < 690 V (1) 

SM21 


supply (V) 

115/127 V AC 50/60 Hz 50760 

220/240 V AC 50/60 Hz 50761 

380/415 V AC 50/60 Hz 50762 

440/480 V AC 50/60 Hz 50763 

500/525 V AC 50/60 Hz 50764 

(1) this voltage is depends on the rated voltage withstand performance of the open auxiliary contact used to isolate the SM21 from 

the installation. 

Mobile 2.5 Hz fault locating 

Kit case 

Mobile fault locating kit case containing: 

XGR (220/240 V) + XRM + XP15 + XP50 + XP100 probes 

Mobile XGR generator 

E32436 

Mobile detector and probes 

E27131 / 27129 

MERLIN GERIN 

SM21 

1 2 3 4 5 6 7 

8 

9 

1 

1 

MΩ 

MERLIN GERIN 

1 

AL. REL. 

OK 

1 

1 

test 

AL. REL. 


supply (V) 

50310 

115/127 V AC 50/60 Hz 50281 

220/240 V AC 50/60 Hz 50282 

380/415 V AC 50/60 Hz 50283 

500/525 V AC 50/60 Hz 50284 

XRM and XP15 probe 50277 



XRM and XP50 + XP100 probes 50289 

XP15 probe 

Empty case for mobile fault locating kit 

Auxiliaries 


TR22A 

TR22AH 

EM9 

EM9B 

EM9BV 

EM9T 

TR5A 

SM21 

50494 

50285 

"250 V" Cardew C or b b (1) 50170 

"440 V" Cardew C or b b (1) 50171 

"660 V" Cardew C or b b (1) 50172 

"1 000 V" Cardew C b b (1) 50183 

Cardew C base v v 50169 

P1 subassembly b 50211 

ZX limiting impedance v v 50159 

S3 inductive neutral point v v 50113 

b compulsory auxiliary 

v optional auxiliary 

(1) Use of the Cardew C is not compulsory with the EM9T. 

57

MERLIN GERIN 


XML31 6 

1 

9 

2 3 4 5 6 7 8 

10 11 12 13 14 15 16 

MERLIN GERIN 


XD308c 

MERLIN GERIN 


XM300c 

040 K 

MERLIN GERIN 


XM200 

R C Sp Sa 


XL316 

1 2 3 4 5 6 7 8 

test 


XD301 

50507 

1 2 3 

4 5 6 

7 8 9 

10 11 12 

MERLIN GERIN 

reset 

test 

on 

M 

M 

S 

test 

menu ok test 


040 K 

TEST MENU 

test 

reset 


XD312 

50536 

1 

9 

2 

10 

3 

11 

4 

12 

5 

13 

6 

14 

M 

M 

test 

7 

15 

8 

16 

test 

test/reset 

test 

reset 

test 


Vigilohm System 

Monitors 

E27115 

E27126 

Monitors-locators 

E32439 

Locators 

E32441 

Detectors 

E27126 

E27125 

E32443 

MERLIN GERIN 


TEST MENU 

MERLIN GERIN 

Type of installation to be 

monitored: 

XM300C 


supply (V) 

XM200 


supply (V) 

Type of installation to be monitored: see XM300C IMD 

XML308 


supply (V) 

XML316 


supply (V) 


XL308 


supply (V) 

XL316 


supply (V) 


XD308C 


supply (V) 

Type of installation to be monitored: see XM200 IMD 

XD301 


supply (V) 

XD312 


supply (V) 

AC or mixed IT Neutral distributed Voltage < 760 V AC (45/400 Hz) 

Neutral not distributed Voltage < 440 V AC (45/400 Hz) 

DC or rectified Line voltage < 500 V DC 

115/127 V AC 50/60 Hz 50540 

220/240 V AC 50/60 Hz 50541 

380/415 V AC 50/60 Hz 50542 

500/525 V AC 50/60 Hz 50543 

115/127 V AC 50/60 Hz 50727 

220/240 V AC 50/60 Hz 50728 

380/415 V AC 50/60 Hz 50729 

500/525 V AC 50/60 Hz 50730 

115/127 V AC 50/60 Hz 50490 

220/240 V AC 50/60 Hz 50491 

380/415 V AC 50/60 Hz 50492 

500/525 V AC 50/60 Hz 50493 

115/127 V AC 50/60 Hz 50322 

220/240 V AC 50/60 Hz 50323 

380/415 V AC 50/60 Hz 50324 

500/525 V AC 50/60 Hz 50325 

115/127 V AC 50/60 Hz 50606 

220/240 V AC 50/60 Hz 50607 

380/415 V AC 50/60 Hz 50608 

500/525 V AC 50/60 Hz 50609 

115/127 V AC 50/60 Hz 50615 

220/240 V AC 50/60 Hz 50616 

380/415 V AC 50/60 Hz 50617 

500/525 V AC 50/60 Hz 50618 

115/127 V AC 50/60 Hz 50723 

220/240 V AC 50/60 Hz 50724 

380/415 V AC 50/60 Hz 50725 

500/525 V AC 50/60 Hz 50726 

115/127 V AC 50/60 Hz 50506 

220/240 V AC 50/60 Hz 50507 

380/415 V AC 50/60 Hz 50508 

500/525 V AC 50/60 Hz 50509 

115/127 V AC 50/60 Hz 50535 

220/240 V AC 50/60 Hz 50536 

380/415 V AC 50/60 Hz 50537 

500/525 V AC 50/60 Hz 50538 

58

on P12 

MERLIN GERIN 

vigidix 

RM 10N 

XD308c 

1 2 3 4 5 6 7 8 

test 


XLI300 

P50 

P1 0 

MERLIN GERIN 


XTU300 

reset 

défaut 

défaut 

test 

on 


Vigilohm System: accessories 

Toroids 

E27127 

E27128 

Shielded pair coil 

Interfaces 

E32433 

E32434 

E32435 

Closed toroid 

Opening toroid 

Mobile detector and probes 

E27131 / 27129 

Cardew surge limitor 

E36226 

Additional subassembly 

E36227 

MERLIN GERIN 


MERLIN GERIN 

Zx limiting impedance 

(*) Consult us. 

TA30 50437 

PA50 50438 

IA80 50439 

MA120 50440 

SA200 50441 

GA300 50442 

POA 50485 

GOA 50486 

Roll of 20 m 50137 

Roll of 100 m 50136 

XAS 

For operation of Vigilohm System bus without XLI300 or XTU300 (bus power supply) 


supply (V) 

115/127 V AC 50/60 Hz 50520 

(*) 

220/240 V AC 50/60 Hz 50521 

380/415 V AC 50/60 Hz 50522 

500/525 V AC 50/60 Hz 50523 

(*) 

XLI300 

External transmission of Vigilohm System information on Jbus (bus power supply) 


supply (V) 

115/127 V AC 50/60 Hz 50515 

220/240 V AC 50/60 Hz 50516 

380/415 V AC 50/60 Hz 50517 

500/525 V AC 50/60 Hz 50518 

(*) 

XTU300 

External transmission of Vigilohm System information on Jbus 

Controls a configuration with multi IMDs/locators/communicating detectors (bus power supply) 


supply (V) 

115/127 V AC 50/60 Hz 50545 

220/240 V AC 50/60 Hz 50546 

380/415 V AC 50/60 Hz 50547 

500/525 V AC 50/60 Hz 50548 

XLI200 

External transmission of Vigilohm System information on Jbus (bus power supply) 


supply (V) 

220/240 V AC 50/60 Hz 50501 

380/415 V AC 50/60 Hz 50502 

XRM mobile detector and XP15 probe 50277 



XRM mobile detector and XP50 + XP100 probes 50289 

Empty case for mobile fault locating kit 50285 

Probe XP15 50494 

Cardew base 50169 

Cardew cartridge 250 V 50170 

440 V 50171 

660 V 50172 

1000 V 50183 

Used with XM300C or CML308/316 IMDs 

Type XM300C or CML308/316 

IMDs 

PHT1000 

Zx subassembly 

AC or mixed IT Neutral distributed 760 V AC 

(45/400 Hz) 

Neutral not distributed 440 V AC 

(45/400 Hz) 

DC or rectified Line voltage 500 V DC 

50248 

50159 

59

Schneider Electric Industries SAS 

89, boulevard Franklin Roosevelt 

F - 92500 Rueil-Malmaison (France) 

Tel : +33 (0)1 41 29 85 00 

http://www.schneider-electric.com 

http://www.merlin-electric.com 

As standards, specifications and designs change from time to time, please ask for confirmation 

of the information given in this publication. 

Printed on ecological paper. 

Design: Schneider Electric 

Photos: Schneider Electric 

Printed: Pont de Claix/JPF - made in France 

ART804690 © 2006 - Schneider Electric - All rights reserved. 

PLSED304015EN 

08-2006

Vigilohm System - engineering site - Schneider Electric

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