SAIA-BURGESS-PRODUKTÜBERSICHT - Wagner GmbH

SAIA-BURGESS-PRODUKTÜBERSICHT 

F6-Series F1NCS-Series F4/F5-Series 

X4-Series 

V4L/V4LS-Series 

1 

XC-Series 

X3-Series 

LP-Series XKA-Series 

V4NC-Series Clipp-on V4D-Series 

XG-Series VB-Series 

Mid-Off-Series 

FK4-Series X5-Series 

BVM3-Series

Terminology 

OPERATING CHARACTERISTICS 

Free Position 

the position of the actuator when no external 

force is applied. 

Pretravel 

movement of the switch actuator between 

free and operating position. 

Operating Position 

the position of the actuator when contact 

changeover takes place. 

Release Position 

the position of the actuator when the switch 

mechanism resets. 

Movement Differential 

the distance between operating and release 

position. 

Overtravel 

movement of the switch actuator beyond the 

operating position. 

Total Travel 

the sum of pre-travel and overtravel. 

Actuating Force 

the force required to move the actuator from 

the free to the operating position. 

Release Force 

the value to which the applied force must be 

reduced to allow the mechanism to reset after 

operation 

Force Differential 

The difference between the values of actuating 

and release forces. 

Please see drawings on this page. 

2 

Force required to operate actuator or auxiliary actuator 

Maximum Force 


Force 

Differential 

Release 

Force 

Free Position 

Post-release travel 

Position of actuator or auxiliary actuator 

Description of switch positions and micro switch forces 

Actuator or 

auxiliary actuator 

Guide 

Pretravel 


Release Position 

Free position Operating Position 

Operation of actuator or auxiliary actuator 

Movement 

Differential 

Pretravel Overtravel 

Overtravel 

Total Travel 

Release Travel 

Movement 

Differential 

Release Travel 

Final Position 

Post-release 

Travel 

Final position Release Force 

Total Travel

SWITCH TECHNOLOGY 

TECHNICAL TERMS 

Butt Contacts 

Contacts which make at one point and maintain 

their initial relationship without further 

movement until they are opened. 

Wiping Contact 

A moving contact mechanically arranged to 

slide across the fixed contact during pretravel 

and overtravel. 

Clearance Distance 

The distance in air between current carrying 

parts of opposite polarity or between any current 

carrying part and an earthed (grounded) 

metal plate to which the switch is attached. 

Creepage Distance 

The path along the surface of insulating material 

between current carrying parts of opposite 

polarity or between any current carrying part 

and an earthed (grounded) metal plate to 

which the switch is attached. 

Insulation Resistance 

Resistance as measured between the 

normally-open and normally-closed terminals, 

3 

or between all terminals connected together 

and a metal plate to which the switch is 

mounted. In dry condition the value would be 

expected to be greater than 5000 megohms. 

Single Throw 

A switch which provides an ON-OFF or OFF- 

ON function but does not change over from 

one conductor to another. Such switches are 

usualIy referred to as being «normalIy-closed 

only» or «normally-open only». C2 signifies 

«Normally-closed only»; C4 signifies «normally-open 

only». 

Switching Cycle 

One complete switching operation, from free 

position into overtravel and back through 

release position to free position. Mechanical 

life estimates reflect the number of switching 

cycles expected to be accomplished before 

operating characteristics become impaired. 

Switch Resistance 

The total resistance offered by a switch in 

a circuit, as measured from terminal, through 

mating contacts, to terminal. 

Transit Time 

The time taken by the moving contact in 

snap-action switch mechanism to move from 

one stable position to another. 

ELECTRICAL RATINGS 

Recommended maximum electrical ratings 

are quoted for each product group. 

These ratings are based on the results of controlled, 

accelerated, laboratory-type tests and 

are regarded as safe working maxima for 

most applications. 

The performance of switches is, however, influenced 

by conditions pertaining on site e.g. 

frequency of operation, type of load, amount 

of actuator travel used, temperature and humidity, 

etc. 

The characteristics of micro switches rely 

upon mechanisms having small contact 

separation. Because of this, it is always 

desirable to check on the arcing potential of 

your circuit and to suppress those elements 

which could cause excessive arcing. 

SWITCH LIFE 

The electrical life of a switch is dependent 

upon frequency of operation, the on-off ratio 

of operation, the nature of the load, arc suppression 

and other circuit details, the amount 

of actuator travel used, ambient humidity and 

temperature and many other site factors, none 

of which is within the switch manufacturers 

competence to control. Electrical life test information 

relates to laboratory controlled 

tests. 

Individual assessments, for specific applications 

where all relevant data is available, are 

possible and can be undertaken by SAIA- 

Burgess Electronics upon request. 

For details of the mechanical life of individual 

switches, please refer to the appropriate 

specification sheet.

APPLICATION TECHNOLOGY 

Shock and Vibration 

If switches are likely to be subjected to shock 

or vibration, select models with the highest 

available actuating force. Switches in this 

Catalogue possess low mass mechanisms 

which are inherently resistant to shock and 

vibration. 

If practicable, the switches should be 

mounted in such a position that the line of 

acceleration is at right angles to the travel of 

the plunger. The maximum available overtravel 

should be used. 

Capacitive Loads 

These can generate very high inrush peaks 

and care should therefore be exercised to 

avoid contact welding. 

Direct Current 

Direct Current (DC) ratings are provided for 

each product group listed in this Catalogue. 

The values stated should not be exceeded if 

destructive arcing and contact welding are to 

be avoided. 

Some form of arc suppression is recommended 

when switches are used in DC circuits 

containing inductive devices wired in series 

with the switch and the supply. Five common 

arc suppression circuits which may be used to 

alleviate the effects of arcing on the switch 

contacts are shown here. The values of the 

components used depend on circuit 

conditions. 

4 

Inductive Loads 

Electrical Ratings Tables included in this 

Catalogue provide data for switches used to 

control inductive circuits at a power factor of 

0.5 

Lamp Loads 

Because of the very high inrush currents 

associated with incandescent lamps, applications 

should be subject to individual assessment. 

Logic Circuits 

To provide reliable switching, the use of gold 

plated contacts is recommended. Three types 

of construction are used: 

AU: signifies gold plating on nickel underlay 

GP: indicates gold-plated silver contacts 

GPX: relates to gold-plated cross point 

contacts 

Installation recommendations 

The following notes are intended merely to 

stress the most important and general 

aspects of good switch installation procedure 

and to provide some helpful additional information. 

Safety Considerations 

Installation should only be carried out by competent 

personnel. 

Position and Operation 

Operating position is the significant factor to 

consider when positioning any snap-action 

switch. The actuating medium must be able to 

operate the switch through this position into 

overtravel and then to retract far enough to 

allow the switch to regain its free position. 

Mounting 

Side mounting switches should be mounted 

on smooth, firm, flat surfaces using the recommended 

size of screw. Avoid over-tightening 

the screws. For added security, they 

should be locked using epoxy resin. Do not 

attempt to enlarge switch mounting holes and 

avoid over stressing the switch. Use insulating 

material between switch and metallic plates to 

increase clearance on switches with open 

terminals. 

Mounting holes and Screw sizes 

Nominal hole Metric Unified Thread 

Diameter Screw Screw 

(mm) (in) 

2.25 0.09 M 2 #2 

2.9 0.11 M 2.5 #4 

Mounting-Screw Torque 

The following provides guidance when using 

mild steel screws 

M 2 or # 2 screws 0.12 Nm 

M 2.5, M3 or # 4 screws 0.5 Nm 

Connections 

When soldering, avoid over-heating any part 

of the switch insulation. In certain circumstances, 

it may be advisable to use a heat shunt. 

For optimum mechanical strength, the conductor 

should be wrapped round the tip of the 

terminal taking care to avoid loose strands of 

wire. The soldering iron bit should be applied 

to the end of the terminal while simultaneously 

applying solder. Remove the iron as soon as 

the solder has wetted the conductor and terminal 

end. A soldering iron bit temperature of 

370°C applied for a maximum of 2-3 seconds 

should be adequate.

CONTACT MATERIALS 

Gold 

Gold plated contacts are recommended for 

switches to be used in low voltage control or 

logic circuits, especially when long periods of 

inactivity are envisaged. Gold flash, a thinner 

deposit, is applied to certain switch terminals 

to ensure good solderability even after prolonged 

storage. 

How to determine the contact material 

for SAIA XG/XC-series only 

The selection of the appropriate contact 

material will depend on a number of factors: 

• current and voltage 

• resistive or inductive load 

• inrush current peak 

• frequency of switching operations 

• atmospheric conditions 

• required switching reliability 

Pure silver contacts (standard) 

SAIA-Burgess Snap-Action Switches are 

normally equipped with pure silver contacts 

(Ag999). These are suitable for most 

applications and have satisfactory electrical 

and thermal properties. 

Gold-plated contacts 

Gold-plated contacts (4 µm) are used for low 

currents of a few mA and voltages below 

about 20 V (for DC and AC) and for 

sulphurous atmospheres. They are unsuitable 

for higher breaking capacities. 

5 

Silver-cadmium oxide contacts 

Silver-cadmium oxide (AgCdO 90/10) contacts 

should be used where high inrush current 

peaks (30A or more) are switched on as they 

tend to weld less at high current loads. They 

can resist peaks of 80A or more for several 

ms provided that they are used with a SAIA- 

Burgess Snap-Action Switch with high operating 

and contact force (80cN in the free 

position and total-travel position). 

At high breaking capacities, switches fitted 

with such contacts have about 50% longer life 

expectancy than those fitted with pure silver 

contacts. Normally, silver-cadmium oxide 

contacts are not suitable for voltages under 

50V.

SERVICE RECOMMENDATIONS 

Maintenance 

SAIA-Burgess switches are not usermaintainable 

but they should be kept in a 

reasonably clean, paint-free condition, 

especially in the actuator area. Regular 

checks should be made on mounting security 

and on the actuating medium to switch 

actuator relationship. 

Switch Life 

The effective life of any switch will depend 

upon the model selected, the number and 

frequency of operations, circuit conditions 

and the severity of the environment. Switch 

replacement should be a matter of routine. 

6 

SWITCH ACTUATION 

Simple actuating plunger 

Actuating plungers should be operated in the 

direction of their axis. The plungers of the 

switch series may also be actuated laterally 

by cams at a recommendet maximum angle 

of 30°. 

Actuation by sliding cams. 

max. 30º 

Actuating levers 

All types of Iever (straight, roller, cam-follower) 

fitted to SAIA-Burgess Snap-Action Switches 

are made of stainless steel. Cam-follower 

levers are particularly well suited for use with 

plastic actuating cams. 

If roller or cam-follower levers are approached 

in the reverse direction, care must be taken 

to ensure that the angle of approach is small 

enough not to jam the lever. 

Actuation by cams 

Abrupt actuation or release of levers shortens 

life of the switches. 

For this reason cams should preferably provide 

a continuous movement. Ideally they 

should be of cycloidal form. 

, 

Long roller lever with continuous actuation.

HEALTH AND SAFETY 

SAIA-Burgess Electronics have ensured, so 

far as it is reasonably practicable, that their 

products as described in this Catalogue or in 

other current Company publications, or as 

specified on Company Installation Drawings, 

have been so designed and constructed as to 

be safe and without risk to health when 

installed by suitably qualified personnel in 

accordance with relevant legislation, codes of 

practice, regulations (including IEE Wiring 

Regulations), the installation recommendations 

offered by the Company and the 

accepted rules of the art. Their usage should 

be confined within the ratings, limitations and 

parameters of application indicated in this 

Catalogue and elsewhere. 

SAIA-Burgess Electronics or their 

representatives are available at all times to 

provide further information and guidance. 

7 

ENVIRONMENTAL PROTECTION 

Protection Classifications 

The catalogued range of SAIA-Burgess 

switches is covered by just four codes. 

IP40 

(no corresponding NEMA type) 

Adequate protection against solids such as 

probing fingers and small wires. Liquids, however, 

can gain access and, unless externally 

protected, the switches should be mounted in 

dry or well-sheltered positions. 

IP54K 

(corresponding generally with NEMA type 4) 

Good protection against solid foreign bodies 

and liquid spray of an intensity which could be 

expected to be emitted from a watering can. 

The spray may come from any angle. Switches 

may be used out of doors if sheltered 

from the worst of the elements or on factory 

machines subjected to normal washing down 

procedures. 

IP6K5 


Complete protection against solids, including 

dust, and against liquid splashing of the 

severity to be expected if the switch was 

turned round and round under a cold water 

tap. This IP code is nominated in DIN 

specifications for limit switches. 

IP6K7 


Similar protection to IP65 but this code is 

reserved for switches which are factory sealed 

and pressure tested. 

Switches should not be immersed in any 

liquid. 

Working Temperatures 

For details of the working temperatures applicable 

to individual types, refer to the appropriate 

specification sheet. Special versions suitable 

for temperatures outside these ranges 

are possible. Details from SAIA-Burgess 

Electronics on request. 

All quoted temperatures assume stable 

operation. They do not imply an ability to 

withstand excessive cycling within the range. 

APPROVALS 

SAIA-Burgess Electronics is listed in the BSI 

Register of Firms of Assessed Capability 

(Registration No. FM/09808) in accordance 

with: 

BS EN ISO 9001-1994.

F6-Series 

8 

F6 

7.35 (.29) 

14.7 (.57) 

12.7 (.58) 

5.8 

(.23) 

R1 

6.85 (2.7) 8.9 (.35) 

A 

B 

5.4 

(2.1) 

A = Operating position10.8 mm (.425 in) 

B = Free position 11.3 mm (.445 in) 

Datum for free position and operating position is button edge of base (stand-off’s). 

Switch solution in smallest dimensions 

With the F6 we are expanding our product 

range with a new micro switch type of special 

class. 

The approved process of the Twin-Shot- and 

Insert-Moulding in our switch production 

allows us to minimize the number of parts, 

process steps and guarantees the highest 

process reliability and quality of our automatic 

assembled F6 switch. 

Due to the Twin-Shot-Moulding lid, sealing 

and cowl are manufactured on a single tool. 

The insert moulded terminals allows to give 

up the complicated gluing process. 

Special characteristics of the F6 

• Silicon free materials 

• Side actuation of 40° directly on plunger 

possible due to: 

– POM plunger material with very low sliding 

friction 

– spherical plunger head 

– special plunger leanding concept 

• Long overtravel despite small construction 

dimensions 

• Ice break levers 

• Nominal currents of 5 mA to 3 A 

with 12/24 VDC 

• 5-parts-concept due to Twin-Shot-Moulding 

and Insert-Moulding = Elimination of 

tolerance chains and high process reliability 

• Latest manufacturing technology without 

gluing, without mechanical fitting between 

cowl and lid

Specifications 

Operating temperature 

-40°C up to +85°C 

Type of protection: 

IP6K7 

Mechanical life: 

Up to 1 mio. cycles 

Mechanism: 

leaf spring mechanism 

Actuators: 

Ice break levers 

Materials: 

Cowl: TPE 

Plunger: POM 

Lid: PP GF30 

Base: PTB 

Terminals: CuZn silver plated 

Contacts: AgNi 0.15 

Circuit diagram F6T85 

9 

 

Common 

Normally 

open 

Normally 

closed 

Recommended Max. Electrical Ratings 

Voltage 

VAC 

250 50 

12 to 24 2 

Resistive load 

mA 

Recommended Min. Electrical Ratings 

Voltage Resistive load 

VAC 

mA 

Twin-Shot-Moulding 

Insert Moulding 


Voltage Resistive load Cycles 

VDC 

mA 

12 to 24 20 

2000 

12 to 24 2 


mA 

F6 

500’000 

50’000 


Voltage 

VDC 

Lid Cowl 

Sealing 

Insert moulded 

terminals

Product Range 

F6 

Operating Characteristics 

Actuator Reference Actuating 

Force 

Maximum 

N (ozf) 

10 

Release 

Force 

Minimum 

N (ozf) 

Free 

Position 

Maximum 

mm (in) 

Operating 

Position 

mm (in) 

Movement 

Differential 

Maximumm 

m (in) 

Plunger F6T85 1.4 (5.03) 0.2 (0.71) 11.3 10.8 ± 0.2 0.2 ± 0.05 

(.425 ± .008) (.008 ±.0019) 

H 

Lever 

F6T85H For positions and forces of this actuator please contact Burgess. 

R 1,3 

(.051) 

Datum for free position and operating position is button edge of base (stand-off’s). 

Total 

Travel 

mm 

max. 

2.0 

(.078)

Ordering References 

Switch range: F6 

Terminal Types 

Actuators 

No symbol = Plunger 

H Plain lever 

Mounting 

No symbol = without pegs 

B… Several mounting pegs with a max. length of 4.9 mm (.1929 in) and 

max. Ø of 2.2 mm (.0866 in) on request. 

11 

T85 

4 

(.16) 

6.85 

(.27) 

T8 T84 

T81 

2.85 

(.112) 

t851.75 

(.068) 

T82 

2 (.078) 

F6 

F6

F1NCS-Series 

F1NCST8C2 

12 

Free Position 

max. 8.6 

(max. .338) 


5.4 

(.214) 

3.45 

(.136) 

3.35 

(.132) 

0.9 

(.035) 

0.8 

(.031) 

2 

5.04 ± 0.15 

(.198 ± .006) 

1.4 ± 0.1 

(.055 ± .004) 

4.1 ±0.1 

(.161 ±.004) 

1 

0.9 

(.035) 

2.65 

(.104) 

14.4 ± 0.15 

(.567 ± .006) 

4.8 

(.189) 

1.4 

(.055) 

0.5 

(.019) 

4.7 

(.185) 

4.2 

(.165) 

5.2 

(.204) 

1.2 ± 0.1 

(.047 ± .004) 

Ø 1.4 

(Ø .055) 

2.5 

(.098) 

3.6 

(.141) 

° 

1 

± 

° 

3 

With the introduction of the F1NCS, SAIA- 

Burgess has once more set the standard for 

the miniaturisation of switching elements for 

electronic equipment. 

The new ultra-miniature switches offer the 

user many advantages: 

• 10% smaller than the F1T8. 

• Flux-proof terminal entries. 

• With minimized number of parts and 

process steps due to the Twin-Shot- 

Moulding. 

• Latest manufacturing technology without 

gluing, mechanical fitting between cowl and 

lid.


Temperature Range: 

-40°C to +85°C 

Type of Protection: 

Enclosure IP54 

Mechanical Life: 

10 7 cycles minimum (impact-free actuation) 

Mechanism: 

Snap-action, coil spring mechanism with 

stainless steel spring. Single-pole changeover 

contact. 

Contacts: 

Fine silver 

Gold plate on silver 

Mounting: 

PCB. Locating pins on housing 

Actuators: 

Plain lever; Cam follower 

Materials: 

Cowl: TPE 

Plunger: POM 

Lid: PP GF30 

Base: PA66 GF30 

Terminals: PCB silver plated 

Circuit diagram 

F1NCST8 

Change-over 

13 

Normally closed 

Normally open 

Common 


Voltage 

VAC 

125 

250 

up to 

30 

50 

75 

125 


A 

1 

1 


A 

2 

0.5 

0.25 

0.2 

1 

1 


Voltage 

VDC 

Inductive load 


A 

2 

0.5 

0.25 

0.03 

The breaking capacities in the table refer to 

silver contacts. For gold contacts see the 

text above right. 

A 

Gold-plated contacts are intended for use in 

signal circuits where the energy being 

switched is at the milliwatt level. Power being 

switched must be limited in order to avoid 

overheating and possible dispersal of the gold 

from the contact area. 

See also page 5. 

F1NCS

Product Range 

F1NCS 



Force 

Maximum 

N (ozf) 

14 

Release 

Force 

Minimum 

N (ozf) 

Free 

Position 

Maximum 

mm (in) 

Operating 

Position 

mm (in) 

Movement 

Differential 

Maximum 

mm (in) 

Plunger F1NCST8 2.0 (7.2) 0.2 (0.72) 6.5 5.9 (0.23) 0.2 

(0.26) ± 0.2 (± 0.008) (0.008) 

A1- F1NCST8A1 0.6 (2.2) 0.09 (0.32) 10.5 7.6 (0.30) 0.7 

Lever (0.41) ± 1.2 (±0.05) (0.03) 

Width of lever 

3.0 mm (.12) 

AC- F1NCST8AC 0.6 (2.2) 0.09 (0.32) 13.3 10.1 (0.40) 0.7 

Lever (0.52) ± 1.2 (±0.05) (0.03) 


3.0 mm (.12) 

Datum for Free Position and Operating Position: base of switch opposite plunger. 

Over 

Travel 

Flush with case. 

The case should not be used as an end stop.


Switch range: F1NCS 

Terminal Type 

T8 = PCB 

see page 8 

Circuits 

No symbol = Changover 

C2 Normally closed 

C4 Normally open 

Actuators 


A1 Plain lever 18.0 mm (.71 in) 

AC Cam follower 18.5 mm (.73 in) 

Contacts 

No symbol = Fine silver 

GP Gold plate on silver 

15 

F1NCS 

F1NCS

F4/F5-Series 

16 

F4T6 

F4T7 

F5T8 

Among the world’s smallest switches with 

power capabilities, these units have surprisingly 

high current ratings and are engineered 

with precision for long and reliable life. 

The use of a double pivot mechanism provides 

a wiping action of the contacts to improve 

weld-breaking capability. The proven 

high capacity stainless steel coil spring 

mechanism provides maximum service life and 

reliability. 

The F4 range is designed for side mounting 

with two M2 screws. The much-reduced size 

of the F5 is achieved by the omission of 

mounting holes. It is intended for use on 

printed circuit boards.


Housing: 

Glass fibre reinforced Polyamide (PA 6.6) 

Plunger: 

Polyamide (PA 6.6) 

Mechanism: 

Double pivot, snap-action coil spring mechanism 

with stainless steel spring. 

Single pole changeover or normally open 

Contacts: 

Fine silver 


Terminals: 

F4T6: 2.0 mm faston 

F4T7: Solder 

F5T8: PCB 

All terminals are gold flashed. 


-40°C to +85°C 


10 7 cycles minimum (impact free actuation) 


Enclosure – IP40 

Mounting: 

F4: Side mounting 

F5: PCB 

Actuators: 


Accessories: 

Lug mounting frame, insulating sheet, 

spring-leaf actuator 

Approvals: 

UL; CSA; 

Circuit diagram F4/F5 

17 

Common 

Change-over 

Normally 

closed 

Normally 

open 


Voltage 

VAC 

125 

250 


Voltage 

VDC 

up to 

30 

50 

75 

125 

250 


A 

5 

5 


A 

5 

2 

1 

0.5 

0.25 


A 

5 

5 


A 

5 

2 

1 

0.06 

0.03 





signal circuits where the energy being switched 

is at the milliwatt level. Power being 




See also page 5. 

F4 

F5

Product Range 

F4 


F5 


Force 

Maximum 

N (ozf) 

Plunger F5 T8 1.4 (5) 0.25 (0.9) 9.5 8.75 (0.34) 0.13 

(0.37) ± 0.3 (± 0.012) (0.005) 

F4T6 1.4 (5) 0.25 (0.9) 8.8 8.1 (0.32) 0.13 

F4T7 (0.35) + 0.3/– 0.2 

(+0.01/– 0.008) 

(0.005) 

Y1- F5T8Y1 0.6 (2.2) 0.07 (0.25) 10.7 8.8 (0.35) 0.7 

Lever (0.42) ± 1.1 (± 0.04) (0.03) 


3.0 mm (.12) 

18 

 

 

F4T6Y1 0.6 (2.2) 0.07 (0.25) 10.0 8.2 (0.32) 0.7 

F4T7Y1 (0.39) + 1.0/– 0.7 

(+ 0.04/–0.03) 

(0.03) 

YC-Lever F5T8YC 0.7 (2.5) 0.09 (0.32) 12.4 10.9 (0.43) 0.45 

(0.49) ± 0.85 (± 0.03) (0.02) 


3.0 mm (.12) 

Datum for Free Position and Operating Position 

F4 – Centre of fixing hole 

F5 – Terminal shoulder 

 

Release 

Force 

Minimum 

N (ozf) 

Free 

Position 

Maximum 

mm (in) 

Operating 

Position 

mm (in) 

Movement 

Differential 

Maximum 

mm (in) 

F4T6YC 0.7 (2.5) 0.09 (0.32) 11.7 10.3 (0.41) 0.45 

F4T7YC (0.46) + 0.8 /– 0.55 

(+ 0.03/– 0.02) 

(0.02) 

Over 

Travel 




Switch range: F4 Side mounting 

F5 PCB mounting 

Terminal type 

T6 = Faston 

T7 = Solder 

T8 = PCB 

see page 12 

Circuit No symbol = Changover 

C2 Normally closed* *(F4 only) 


Actuators 


Y1 Plain lever 21.0 mm (.83 in) 

YC Cam follower 16.9 mm (.67 in) 

Contacts 



19 

F4 

F5

FK4-Series 

20 

FK4T6 

FK4T7 

FK4T8 

Moulded-cased, single-pole changeover, 

snap-action switches which open or close the 

conductors at two points, thereby increasing 

the available contact separation. 

FK4 switches are slightly smaller than 

V4 Series although mounting positions interchange.


Housing: 


Plunger: 

Polyamide (PA 6.6); Polyacetal (POM) for lever 

types 

Mechanism: 

Double-break snap-action coil spring 

mechanism with stainless steel springs 

Contacts: 

Fine silver 


Terminals: 

T6: 2.0 mm faston 

T7: Solder 

T8: PCB 

All terminals are gold flashed 


-40°C to +85°C 


10 7 cycles minimum (impact free actuation) 


Enclosure – IP40 

Mounting: 

FK4T6/T7: side mounting 

FK4T8: PCB 

Actuators: 


Accessories: 

Insulating sheet 

Approvals: 

UL, CSA, SEMKO 

Circuit diagram FK4 

1 + 2 Normally closed 

3 + 4 Normally open 

21 


Voltage 

VAC 

125 

250 

Voltage 

VDC 

up to 

30 

50 

75 

125 

250 


A 

5 

5 


A 

5 

5 



A 

5 

2 

1 

0.5 

0.25 


A 

5 

2 

1 

0.06 

0.03 




FK4 






from the contact area.

Product Range 

FK4 



Force 

Maximum 

N (ozf) 

22 

Release 

Force 

Minimum 

N (ozf) 

Free 

Position* 

Maximum 

mm (in) 

Operating 

Position* 

mm (in) 

Movement 

Differential 

Maximum 

mm (in) 

Plunger FK4T6 1.8 (6.5) 0.25 (0.9) 9.4 (0.37) 8.25 (0.32) 

± 0.25 (± 0.01) 

0.5 (0.02) 

FK4T7 1.8 (6.5) 0.25 (0.9) 9.4 (0.37) 8.25 (0.32) 

± 0.25 (± 0.01) 

0.5 (0.02) 

FK4T81) 1.8 (6.5) 0.25 (0.9) 12.75 (0.5) 11.60 (0.45) 

± 0.45 (± 0.02) 

0.5 (0.02) 

Y1 FK4T6Y1 0.8 (2.9) 0.09 (0.3) 12.1 (0.48) 8.25 (0.32) 1.85 (0.07) 

Lever ± 0.9 (± 0.04) 

FK4T7Y1 0.8 (2.9) 0.09 (0.3) 12.1 (0.48) 8.25 (0.32) 

± 0.9 (± 0.04) 

1.85 (0.07) 

Width of lever: FK4T8Y1 0.8 (2.9) 0.09 (0.3) 15.6 (0.61) 11.55 (0.45) 1.85 (0.07) 

3.0 (.12) ± 1.1 (± 0.04) 

YC FK4T6YC 1.0 (3.6) 0.1 (0.4) 13.5 (0.53) 10.4 (0.41) 1.3 (0.05) 

Lever ± 0.6 (± 0.02) 

FK4T7YC 1.0 (3.6) 0.1 (0.4) 13.5 (0.53) 10.4 (0.41) 

± 0.6 (± 0.02) 

1.3 (0.05) 

Width of lever: FK4T8YC 1.0 (3.6) 0.1 (0.4) 17.0 (0.67) 13.7 (0.54) 1.3 (0.05) 

3.0 (.12) ± 0.8 (± 0.03) 

Datum for Free Position and Operating Position 

* FK4T6/7 – Centre of fixing hole 

1 FK4T8 – Terminal shoulder 

Over 

Travel 




Switch range: FK4 

Terminal Type 

T6 = Faston 

T7 = Solder 

T8 = PCB 

see page 16 

Actuators 




Contacts 



23 

FK4 

FK4

X5-Series 

24 

X5G3 

max. 6.2 (.24) 

5.0 (.20) 

1.5 (.06) 

2.0 (.08) 

2.2 (.09) 

1.1 (.04) 

5.08 (.20) 

5.3 (.20) 

6.5 (.26) 

12.8 (.50) 

5.08 (.20) 

5.0 (.20) 

0.9 (.35) 

Ø 2.0 (.08) 

6.5 (.26) 

2.9 (.11) 

0.4 (.016) 

5.8 (.23) 

Important features 

• The highest number of components in the 

smallest possible space 

• Extremely low weight 

(approximately 0.6 g per item) 

• May be mounted directly onto PCBs 

• Minimal space requirement 

• For low current applications 

• Miniature size 

(Length: 12,8 mm, width: 5,8 mm, 

height 6,5 mm) 

• Long mechanical life because of the coil 

spring mechanism 

• Nominal currents up to 3A /125 VAC 

Typical applications 

• Telecommunications 

• Small domestic appliances 

• Recreational items 

• Automotive


Housings: 

Thermoplastic 

Plunger: 

Thermoplastic 

Mechanism: 


stainless steel spring 

Contacts: 

Silver 

Contact carrier: 

Brass 

Terminals: 

Solder 

Temperature range: 

65°C 


Enclosure IP 40 

Mountings: 

– PCB 

– Side mounting 


5·105cycles minimum 

Approvals: 

UL 1054, CSA 

Circuit diagram X5 

25 

 

Common 

Normally 

open 

Normally 

closed 

Recom. max. electrical ratings X5 

Voltage 

VAC 

125 

250 

Resistive 

load 

A 

3 

1.5 

The breaking capacities in the tables refer to 

silver/silver contacts. 

X5

Product Range 

Ordering Charcteristics 


Force 

Maximum 

N (ozf)) 

26 

Release 

Force 

Minimum 

N (ozf)) 

Free 

Position 

Maximum 

mm (in) 

Operating 

Position 

mm (in) 

Movement 

Differential 

Maximum 

mm (in) 

Full 

Overtravel 

Position 

mm (in) 

Plunger 5.3 (.21) 

X5G3 1.5 (5.35) 0.2 (0.72) 6.2 5.5 ± 0.3 0.2 5.0 

(0.24) (0.22 ± 0.01) (0.008) (0.20) 

J-Lever 12.1 (.48) 

X5G3..J1 0.5 (1.80) 0.05 (0.18) 9.5 7.2 ± 1.5 0.8 5.3 

(0.37) (0.28 ± 0.06) (0.032) (0.21) 


3.6 mm (.14) 

6.2 (.24) 

5.5 (.22) 

4.2 (.16) 

8.6 (.34) 

X5


Switch range: X5 

Actuating forces 

G = Standard force Fs max. 150 cN 

Circuits 

3 = Changeover 

Terminal type 

03= PCB, vertical 

Housing designs 

K = Thermoplastic lid: black 

base: copperbrown 

Contacts 

1 = Silver / Silver 

Approval classes 

in accordance with UL/CSA 

A = 1.5 A 250 VAC approved 

3.0 A 125 VAC approved 

B = 1.0 A 125 VAC 

N = No approvals 

Electrical rating classes 

in accordance with EN / IEC 


Actuators 

No digit = without lever 

J0 to J9 = Straight lever 

L0 to L9 = Cam follower 

M0 to M9 = Formed lever 

Actuator length 

No digit = Standard type 

AA to YY = Specials for customers 

27 

X 5 

X5

X4–Series 

28 

X4..03… 

+ 0.1 

2.35 (.09) – 0.15 

X4..04… 

0.5 (.02) 

X4..08… 

2.4 (.09) 

+ 0.05 

– 0.02 

2.5 

3.45 (.14) 

(.10) 

9.5 (0.37) ± 0.1 

12.3 (.48) 

19.9 (.78) 

7.5 (.30) 

+ 0.25 

– 0.35 

8.85 (.35) 6.65 (0.26) 

3.2 (.13) 

5.25 (.21) 

+ 0.20 

– 0.25 

+ 0.05 

2.3 (.09) – 0.02 

2.3 (.09) 

4.5 (.18) 10.65 (.42) 

1.3 (.05) 

3.1 (.12) 

4 (.16) 

6.4 (.25) 

±0.2 

1.4 (.06) 

2.8 (.11) 

6.4 (.25) 

±0.2 

4 (.16) 

6.4 (.25) 

±0.2 

+ 0.2 

– 0.3 

9.65 (.38) 

3.6 

(.14) 

8.1 (.32) 

5.5 (.22) 

Detail A 

62° 

Detail A 

1.3 

(.05) 

0.3 (.01) 

1.0 

(.04) 


• Wide range of solder, faston an PCB 

terminals 

• Various operating actuators may be 

specified 

• Lever may be clipped on later 

• Versions with maximum electrical rating of 

12 A at 250AC 

• Actuating forces between 75 and 330 cN 

Decisive advantages 

• High degree of switching accuracy 

• Its greater precision ensures greater 

functional safety 

• The crosspoint contacts are ideal for low 

current/voltage applications 




• Recreational items 

• Automotive industry


Housing: 

Thermoplastic 

Plunger: 

Thermoplastic 

Mechanism: 

Snap-action, coil-spring mechanism with 


Contacts: 

Fine silver (Ag), gold-plate on silver and 

gold-plate on silver crosspoint 


Brass 

Terminals: 

Solder, faston, PCB, side-facing PCB and 

PCB terminals with 0.1” pitch 


Between –40 °C and + 85 °C. 


Enclosure – IP 40 

Mounting: 

Side mounting or PCB 


106 cycles minimum 

Approvals: 

UL 1054: UL, C-UL 

EN 61058-1: SEV, VDE 


29 

 

Common 

Normally 

open 

Normally 

closed 

Recommended max. ratings X4 

X4 F 

X4 G 

X4 C 

Voltage 

VAC 

250 

250 

250 

Resistive 

load 

A 

12 

6 

3 

Motor 

load 

A 

6 

3 

2 


silver contacts 

X4

Product Range 

Ordering Characteristics 


Force 

Maximum 

N (ozf)) 

Release 

Force 

Min. 

N (ozf)) 

Free 

Position 

Max. 

mm (in) 

Operating 

Position 

mm (in) 

Movement 

Differential 

Maximum 

mm (in) 

Full Overtravel 

Pos. 

max. 

mm (in) 

Plunger 7.5 (.30) 

2.4 

(.09) 

X4F 3.3 (11.869) 0.55 8.8 

(1.978) (0.35) 

8.4+ 0.1/-0.3 

(0.33 ± 0.004/-0.01) 

0.2 

(0.008) 

7.7 

(0.30) 

X4G 2.0 (7.193) 0.35 8.8 8.4+ 0.1/-0.3 0.2 7.7 

(1.258) (0.35) (0.33 ± 0.004/-0.01) (0.008) (0.30) 

X4C 0.75 (2.697) 0.13 8.8 8.4+ 0.1/-0.3 0.2 7.7 

(0.467) (0.35) (0.33 ± 0.004/-0.01) (0.008) (0.30) 

J11- 17.5 (.69) 

X4F ..J11 1.16 (4.172) 0.18 12.2 10.2 ± 1 0.6 8.4 

Lever (0.647) (0.48) (0.40 ± 0.039) (0.024) (0.33) 

X4G..J11 0.7 (2.517) 0.094 12.2 10.2 ± 0.9 0.5 8.5 


4 mm (.16) 

12.7 (.50) 

X4C..J11 0.28 (1.007) 

(0.338) 

0.031 

(0.107) 

(0.48) 

12.2 

(0.48) 

(0.40 ± 0.035) 

10.3 ± 0.9 

(0.40 ± 0.035) 

(0.02) 

0.4 

(0.016) 

(0.33) 

8.7 

(0.34) 

L11- X4F ..L11 1.21 (4.352) 0.19 17.6 15.6 ± 1.1 0.6 14.0 

Lever (0.683) (0.69) (0.61± 0.043) (0.024) (0.55) 

X4G..L11 0.82 (2.949) 0.11 17.6 15.6 ± 1 0.5 14.1 

(0.395) (0.69) (0.61± 0.039) (0.02) (0.56) 


4 mm (.16) 

12.7 (.50) 

X4C..L11 0.29 (1.043) 0.033 

(0.118) 

17.6 

(0.69) 

15.7 ± 1 

(0.61± 0.039) 

0.4 

(0.016) 

14.3 

(0.56) 

S11- X4F ..S11 1.21 (4.352) 0.19 17.6 15.6 ± 1.2 0.6 14.1 

Lever (0.683) (0.69) (0.61± 0.047) (0.024) (0.56) 

X4G..S11 0.82 (2.949) 0.11 17.6 15.6 ± 1.1 0.5 14.2 

(0.395) (0.69) (0.61± 0.043) (0.02) (0.56) 

Width of roller 

4 mm (.16) 

12.7 (.50) 

X4C..S11 0.29 (1.043) 0.036 

(0.129) 

17.6 

(0.69) 

15.7 ± 1.1 

(0.62± 0.043) 

0.4 

(0.016) 

14.4 

(0.57) 

30 

6.1 (.24) 

6.1 (.24) 

6.1 (.24) 

16 (.63) 

5.9 (.23) 

15.1 (.59) 

60º 

Ø 4.8 

(.19) 

X4



Actuating Forces 

F = Extra strong force 

G = Strong force 

C = Low force 

Circuits 


4 = Normally closed(NC) 

5 = Normally open (NO) 

Terminal Type 

03 = Solder 

04 = Faston 2.8 x 0.5 mm DIN 

Housing design 

K = Thermoplastic 

Contacts 

1 = Silver 

8 = Gold, gold plate cross bar 

Actuators 



L0 to L9 = Simulated roller lever 

M0 to M9 = Customer specified lever (KV) 

S0 to S9 = Roller lever 

31 

 


in accordance with UL/C-UL 

A = 12 A 125/250 VAC 

B = 6 A 125/250 VAC 

C = 3 A 125/250 VAC 

D = 0,1 A 125 AC 


Mounting position of the actuator 

1 = Mounting over terminal pos. 1 

2 = Mounting over terminal pos. 2 

/ = Plunger 

with X4F and X4G 

not possible 

(except gold contacts) 


in accordance with EN/IEC 

A = 12 (6) A 250 V~ 1E4 T85 µ approved 

B = 6 (3) A 250 V~ 5E4 T85 µ approved 

C = 3 (2) A 250 V~ 5E4 T85 µ approved 

F = 10 (4) A 250 V~ 1E4 T125 µ approved 

L = 1 A 30 V = not approved 

M = 0,3 A 30 V ~ 1E4 not approved 

X 4 

X4

XC-Series 

32 

XC3 

XC5 

XC9 

+ 0.1 

2.35 – 0.15 

(.09) 

+ 0.05 

2.5 – 0.02 

(.10) 

0.5 

(.02) 

8.1 

(.32) 

5.5 

(.22) 

0.5 

(.02) 

0.5 

(.02) 

2.4 

(.09) 

7.5 

(.30) 

1 4 2 

8.85 3.45 

(.35) (.14) 

9.5 ± 0.1 

(.37) 

+ 0.25 

19.9 – 0.35 

(.78) 

1 4 2 

12.3 ± 0.3 

(.48) 

8.85 

(.35) 

6.65 

(.26) 

3.2 

(.13) 

+ 0.20 

5.25 – 0.25 

(.20) 

1 4 2 

4.7± 

0.3 

(.19) 

12.3 ± 0.3 

(.48) 

7.6 

7.6 

(.30) (.30) 

+ 0.05 

2.3 – 0.02 

(.09) 

2.9± 

0.3 

(.11) 

3.4 ± 0.1 

(.13) 

1.3 

(.05) 

1.0 

(.04) 

4.5 

(.18) 

3.1 

(.12) 

4.8 

(.19) 

2.4 

(.09) 

4 

(.16) 

6.4 ± 0.2 

(.25) 

1.2 

(.5) 

2.8 

(.11) 

0.35 

(.02) 

9.5 

(.37) 

+ 0.2 

– 0.3 

1.6 

(.07) 

3.6 

(.14) 

1.3 x 0.5 

(.05 x .02) 


• Serated silver contacts for power switching; 

option of gold-plated contacts in conventional 

form and crosspoint contacts for lowcurrent 

applications. 

• Ample overtravel – plunger can be 

depressed flush with case. 

• Wide range of CrNi stainless steel levers for 

clip-on attachment. 

• Various terminal options e.g, solder, faston, 

pcb, etc. 

• Low and high-force versions. 

• Terminal spacing 0.1” (0.25mm) international 

pitch. 

Significant advantages 

• Excellent performance; high quality 

standards 

• Short and flexible delivery times 

• Design service for special models to meet 

particular applications. 




• Office equipment 

• Automotive industry


Housing: 

Phenolic-Melamine, Thermosetting 

Plunger: 

POM for T85 

PBT for T140 

Mechanism: 

Stainless steel snap-action coil spring 

mechanism 

Contacts: 

Pure silver (Ag) or 10 µm Gold (Au), 

microprofile 

Contact Carrier: 

CuZn or CuSn 

Terminals: 

Solder, faston and various PCB terminals 

(side of housing or side of lid, as well as 

1/10” o lin pitch) 


Between – 40°C and +85°C. 



Mounting: 

Side mounting through mounting holes 


up to 5 ·10 7cycles (sinusoidal actuation) 

Approvals: 

VDE, UL, CSA 

Circuit diagramm XC 

33 

Common 

 

Normally 

open 

Normally 

closed 

Recom. Max. Electrical Ratings XC 

Voltage Resistive 

Motor 

load 

load 

VAC 

A 

250 5 1 

Recom. Max. Electrical Ratings XCF 

Voltage Resistive Terminal Motor 

load 

load 

VAC 

A 

250 5 

10 

Voltage 

VAC 

4/5 

other 

2 

2 

Recom. Max. Electrical Ratings XCH 

Resistive 

load 

A 


silver contacts. 

A 

A 

Motor 

load 

250 1 0,1 

A 

XC 

Recom. Max. Electrical Ratings XCC 


Motor 

load 

load 

A 

VAC A 

250 2 0,5 

Recom. Max. Electrical Ratings XCK 

Voltage 

VAC 

250 

250 

Resistive 

load 

A 

5 

3 

2) To be indicated, when ordering. 

Motor 

load 

A 

2 2) 

1

Product Range 


Maximum Minimum Maximum 

Maximum Maximum 

N (ozf) N (ozf) mm (in) mm (in) 

 

mm (in) mm (in) 

Plunger XC.. 1.7 (6.07) 0.3 (1.07) 8.8 (0.34) 8.4 (0.33) 0.1 (0.003) 7.7 (0.303) 

+0.1/–0.3 

XCC.. 0.6 (2.14) 0.1 (3.57) 8.8 (0.34) 8.4 (0.33) 0.1 (0.003) 7.7 (0.303) 

7.5 (.30) 

+0.1/–0.3 

2.4 (.09) 

XCF.. 3.0 (10.7) 0.5 (1.78) 8.8 (0.34) 8.4 (0.33) 0.1 (0.003) 7.7 (0.303) 

+0.1/–0.3 

XCK.. 1.2 (4.28) 0.2 (0.71) 8.8 (0.34) 8.4 (0.33) 0.1 (0.003) 7.7 (0.303) 

(+0.003/–0.011) 

+0.1/–0.3 

XCH.. 0.35 (1.24) 0.07 (0.24) 8.8 (0.34) 8.4 (0.33) 0.1 (0.003) 7.7 (0.303) 

J1- XC.. -J1 0.6 (2.14) 0.08 (0.28) 12.2 (0.48) 10.2 (0.401) 0.5 (0.019) 8.5 (0.337) 

Lever ± 0.9 (± 0.035) 

XCC.. -J1 0.22 (0.78) 0.025 (0.08) 12.2 (0.48) 10.3 (0.404) 0.4 (0.015) 8.7 (0.342) 

± 0.9 (± 0.035) 

XCF.. -J1 1.05 (3.74) 0.16 (0.57) 12.2 (0.48) 10.2 (0.401) 0.6 (0.023) 8.4 (0.330) 

± 1.0 (± 0.039) 

XCK.. -J1 0.42 (1.49) 0.056 (0.19) 12.2 (0.48) 10.3 (0.405) 0.5 (0.019) 8.7 (0.342) 

± 0.9 (± 0.035) 

XCH.. -J1 0.13 (0.46) 0.02 (0.07) 12.2 (0.48) 10.4 (0.409) 0.4 (0.015) 8.8 (0.346) 

± 0.9 (± 0.035) 

L1- XC.. -L1 0.7 (2.49) 0.09 (0.32) 17.6 (0.69) 15.6 (0.614) 0.5 (0.019) 14.1 (0.555) 

Lever ± 1.0 (± 0.039) 

XCC..-L1 0.23 (0.82) 0.026 (0.09) 17.6 (0.69) 15.7 (0.618) 0.4 (0.015) 14.3 (0.562) 

± 1.0 (± 0.039) 

XCF.. -L1 1.1 (3.92) 0.17 (0.60) 17.6 (0.69) 15.6 (0.614) 0.6 (0.023) 14.0 (0.551) 

± 1.1 (± =.043) 

XCK.. -L1 0.43 (1.53) 0.058 (0.20) 17.6 (0.69) 15.7 (0.618) 0.4 (0.015) 14.3 (0.562) 

± 1.0 (± 0.039) 

XCH..-L1 0.14 (0.49) 0.021 (0.07) 17.6 (0.69) 15.8 (0.622) 0.4 (0.015) 14.4 (0.566) 

± 1.0 (± 0.039) 

S1- XC.. -S1 0.7 (2.49) 0.09 (0.32) 17.6 (0.69) 15.6 (0.614) 0.5 (0.019) 14.2 (0.559) 

Lever ± 1.1 (± =.043) 

XCC..-S1 0.23 (0.82) 0.026 (0.09) 17.6 (0.69) 15.7 (0.618) 

± 1.1 (± =.043) 

0.4 (0.015) 14.4 (0.566) 

XCF.. -S1 1.1 (3.92) 0.17 (0.60) 17.6 (0.69) 15.6 (0.614) 

± 1.2 (± 0.047) 

0.6 (0.023) 14.1 (0.555) 

XCK.. -S1 0.43 (1.53) 0.058 (0.20) 17.6 (0.69) 15.7 (0.618) 

± 1.1 (± =.043) 

0.4 (0.015) 14.4 (0.566) 

Width of roller: 

4 mm (.16) 

12.7 (.50) 

XCH..-S1 0.14 (0.49) 0.021 (0.07) 17.6 (0.69) 15.8 (0.622) 

± 1.1 (± =.043) 

0.4 0.015) 14.5 (0.570) 

Operating characteristics shown above are 

specified from mounting hole centres. 

34 


Force 

Width of lever: 

4 mm (.16) 


4 mm (.16) 

8.8 (.35) 

8.4 (.33) 

12.2 (.48) 

10.2 (.40) 

17.6 (.69) 

15.6 (.61) 

17.6 (.69) 

15.6 (.61) 

6.1 (.24) 

6.1 (.24) 

6.1 (.24) 

18.0 (.71) 

12.7 (.50) 

16 (.63) 

5.9 (.23) 

12.7 (.50) 

16.8 (.66) 

60º 

Ø 4.8 

(.19) 

Release 

Force 

Free 

Position 

Operating 

Position 

Movement 

Differential 

XC 

Total travelled 

Position


Basic types XC XCK XCH 

XCF XCC 

Circuits 

No symbol = Changeover 

4 Normally closed (NC 2) 

5 Normally open (NO 4) 

Terminal types 

3 Solder 

4 Faston 2.8 x 0.5 mm DIN 

5 Faston 2.8 x 0.5 mm IEC/AMP 

8 PCB (straight) 

9 PCB (1/10” pitch) 

10 Side mounting PCB, Base side 

11 Side mounting PCB, cover side 

Other teminals on special request. 

Version 

No symbol Housing material 

MP 

Europe up to 85°C 

UL up to 90°C 

– W (High temperature 140°C) Housing material 

Polyester PBT 

Europe up to 140°C 

UL up to 130°C 

Contacts 


81 µ profile Au 10 µm 

Actuators 


J1 Straight lever r = 18,0 mm (0.71 in) 



S1 Roller lever r = 16,8 mm (0.66 in) 

L1 Cam follower r = 16,0 mm (0.63 in) 

Other actuators on special request. 

35 

XC. 

XC

V4NC-Series 

36 

V4NCT7 

Free Position 



V4NSCT8 

Free Position 


2.4 ±0.1 

(.094 ±.004) 


3.4 

(.134) 

2.4 ±0.1 

(.094 ±.004) 

7±0.15 

(.275 ±.006) 

0.5 (3x) 

(.02 3x) 

7±0.15 

(.275 ±.006) 

0.5 (3x) 

(.02 3x) 

10.8 

(.425) 

7.5 

(.295) 

Ø 2.54 +0.05 

(Ø .1 ±.002) 

Ø 2.25 +0.1 

(Ø .088 ±.004) 

10.16 

(.4) 

9.53 ±0.05 

(.375 ±.002) 

19.85 ±0.15 

(.781 ±.006) 

5.3 

(.208) 

2 4 1 

5.08 

(.2) 

5.16 

(.203) 

10.8 

(.425) 

7.5 

(.295) 

Ø 2.54 +0.05 

(Ø .1 ±.002) 

Ø 2.25 +0.1 

(Ø .088 ±.004) 

10.16 

(.4) 

9.53 ±0.05 

(.375 ±.002) 

19.85 ±0.15 

(.781 ±.006) 

5.3 

(.208) 

2 4 1 

5.08 

(.2) 

5.16 

(.203) 

1 

(.039) 

2.25 ±0.1 

(.088 ±.004) 

7.7 ±0.1 

(.303 ±.004) 

2.6 

(.102) 

1 

(.039) 

2.25 ±0.1 

(.088 ±.004) 

7.7 ±0.1 

(.303 ±.004) 

2.6 

(.102) 

Ø 4.4 ±0.05 

(Ø .173 ±.002) 

1.75 (.069) 

2.95 

(.116) 

6.4 

(.252) 

Ø 2.3 

(Ø .09) 

Ø 1.7 ±0.15 

(Ø .067 ±.006) 

Ø 6.25 

(Ø .246) Ø 2.3 

(Ø .09) 

0.8 

(.031) 

6.4 

(.252) 

3.6 

(.141) 

4 

(.157) 

An exciting new range of sub-miniature 

switches embracing a host of innovative 

design features: 

• Seven terminal options all sealed 

• Mounting holes or moulded pegs 

• Standard and low force models 

• Wide range of clip on levers – two styles 

• Choice of lever position 

• Silver contacts for power switching; 

gold on silver for logic circuits 

• Long overtravel versions 

• Snap-on terminal covers 

The ultimate in versatility.


Housing: 


Plunger: 

Polyacetal (POM) 

Mechanism: 

Snap-action coil spring mechanism with 

stainless steel spring. Changeover, normallyclosed 

or normally-open 

Contacts: 

Fine silver 


Gold alloy on silver palladium (crosspoint) 

Terminals: 

All terminals are gold flashed 

Refer to page 39 


– 40°C to +85°C 


5 x10 6 cycles minimum (impact free actuation) 


V4NC – Enclosure IP 40 

V4NCS – Enclosure IP 6K7 

Flux-proof terminal entries 

Mounting: 

Side mounting 

Versions with moulded mounting pegs of 

2.25 mm or 3.2 mm diameter are also available. 

Please consult Burgess. 

Actuators: 

Plain lever 

Cam follower Choice 

of two styles 

Roller lever 

Accessories: 

Lug mounting frame 

Clip-on terminal covers 


Circuit diagram V4NC 

Common 

37 

Normally 

closed 

Normally 

open 

Recom. Max. El. Ratings V4NC(S)-series 

Voltage 

VAC 

125 

250 

Voltage 

VDC 

up to 

30 

50 

75 

125 

250 


A 

5 

5 


A 

5 

1 

0.75 

0.5 

0.25 


A 

2 

2 

Recom. Max. El. Ratings V4NC(S)-series 


A 

3 

1 

0.75 

0.03 

0.03 

Recom. Max. El. Ratings V4NCS-series 

Voltage 

VDC/VAC 


mA 


mA 

12 to 30 10 10 

Recom. Max. El. Ratings V4NC-series 

Voltage 

VDC/VAC 


mA 


mA 

12 to 30 100 100 



text on right. 

V4NC 

Recom. Max. El. Ratings V4NC(S)4-series 

Voltage Resistive load Inductive load 

VAC 

125 

250 

A 

10 

10 







A 

5 

5 

Recom. Max.El. Ratings V4NC(S)4-series 

Voltage 

VDC 

up to 

30 

50 

75 

125 

250 

Voltage 

VDC/VAC 


A 

10 

1 

0.75 

0.5 

0.25 


mA 


A 

3 

1 

0.75 

0.03 

0.03 

Recom. Max. El. Ratings V4NCS4-series 


mA 

12 to 30 10 10 

Recom. Max. El. Ratings V4NC4-series 

Voltage 

VDC/VAC 


mA 


mA 

12 to 30 100 100

Product Range 



Force 

Maximum 

N (ozf) 

38 

Release 

Force 

Minimum 

N (ozf) 

Free 

Position 

Maximum 

mm (in) 

Operating 

Position 

mm (in) 

V4NC 

Movement 

Differential 

Maximum 

mm (in) 

Plunger V4NC.. 1.7 (6.114) 0.3 (1.079) 9.2 (.362) 8.4 (.331) 0.1 (.004) 

V4NC4.. 2.5 (8.992) 0.5 (1.798) 9.2 (.362) 8.4 (.331) 0.1 (.004) 

V4NCE.. 1.7 (6.114) 0.3 (1.079) 9.7 (.382) 8.9 (.350) 0.1 (.004) 

V4NC4E.. 2.5 (8.992) 0.5 (1.798) 9.7 (.382) 8.9 (.350) 0.1 (.004) 

V4NCS.. 2.5 (8.992) 0.5 (1.798) 9.2 (.362) 8.4 (.331) 0.1 (.004) 

V4NC4S.. 2.8 (10.071) 0.7 (2.517) 9.2 (.362) 8.4 (.331) 0.1 (.004) 

V4NCSE.. 2.5 (8.992) 0.5 (1.798) 9.7 (.382) 8.9 (.350) 0.1 (.004) 

V4NC4SE.. 2.8 (10.071) 0.7 (2.517) 9.7 (.382) 8.9 (.350) 0.1 (.004) 

A1 V4NC.. 0.8 (2.877) 0.07 (0.251) 13.4 (.527) 10.85 (.427) 0.4 (.016) 

Lever V4NC4.. 1.1 (3.956) 0.1 (0.359) 13.4 (.527) 10.85 (.427) 0.4 (.016) 

V4NCE.. 0.8 (2.877) 0.07 (0.251) 14.8 (.582) 12.4 (.488) 0.4 (.016) 

V4NC4E.. 1.1 (3.956) 0.1 (0.359) 14.8 (.582) 12.4 (.488) 0.4 (.016) 


4.0 mm (.16) 

V4NCS.. 0.9 (3.237) 0.1 (0.359) 13.4 (.527) 10.8 (.425) 0.4 (.016) 

V4NC4S.. 1.1 (3.956) 0.15 (0.539) 13.4 (.527) 10.8 (.425) 0.4 (.016) 

V4NCSE.. 0.9 (3.237) 0.1 (0.359) 14.8 (.582) 12.4 (.488) 0.4 (.016) 

V4NC4SE.. 1.1 (3.956) 0.15 (0.539) 14.8 (.582) 12.4 (.488) 0.4 (.016) 

AC1 V4NC.. 0.8 (2.877) 0.07 (0.251) 16.1 (.634) 13.5 (.531) 0.4 (.016) 

Lever V4NC4.. 1.1 (3.956) 0.1 (0.359) 16.1 (.634) 13.5 (.531) 0.4 (.016) 

V4NCE.. 0.8 (2.877) 0.07 (0.251) 17.6 (.693) 15.1 (.594) 0.4 (.016) 

V4NC4E.. 1.1 (3.956) 0.1 (0.359) 17.6 (.693) 15.1 (.594) 0.4 (.016) 


4.0 mm (.16) 

V4NCS.. 0.9 (3.237) 0.1 (0.359) 16.1 (.634) 13.4 (.527) 0.4 (.016) 

V4NC4S.. 1.1 (3.956) 0.15 (0.539) 16.1 (.634) 13.4 (.527) 0.4 (.016) 

V4NCSE.. 0.9 (3.237) 0.1 (0.359) 17.6 (.693) 15.1 (.594) 0.4 (.016) 

V4NC4SE.. 1.1 (3.956) 0.15 (0.539) 17.6 (.693) 15.1 (.594) 0.4 (.016) 

AR1 V4NC.. 0.8 (2.877) 0.07 (0.251) 18.1 (.712) 16.0 (.630) 0.4 (.016) 

Lever V4NC4.. 1.2 (4.316) 0.1 (0.359) 18.1 (.712) 16.0 (.630) 0.4 (.016) 

V4NCE.. 0.8 (2.877) 0.07 (0.251) 19.2 (.756) 17.3 (.681) 0.4 (.016) 

V4NC4E.. 1.2 (4.316) 0.1 (0.359) 19.2 (.756) 17.3 (.681) 0.4 (.016) 

Width of roller: 

4.0 mm (.16) 

V4NCS.. 0.9 (3.237) 0.1 (0.359) 18.1 (.712) 15.9 (.626) 0.4 (.016) 

V4NC4S.. 1.2 (4.316) 0.15 (0.539) 18.1 (.712) 15.9 (.626) 0.4 (.016) 

V4NCSE.. 0.9 (3.237) 0.1 (0.359) 19.2 (.756) 17.3 (.681) 0.4 (.016) 

V4NC4SE.. 1.2 (4.316) 0.15 (0.539) 19.2 (.756) 17.3 (.681) 0.4 (.016) 

A10 V4NC.. 1.3 (4.676) 0.13 (0.467) 10.7 (.421) 9.4 (.370) 0.2 (.008) 

Lever V4NC4.. 1.7 (6.114) 0.2 (0.719) 10.7 (.421) 9.4 (.370) 0.2 (.008) 

V4NCE.. 1.3 (4.676) 0.13 (0.467) 11.5 (.453) 10.2 (.401) 0.2 (.008) 

V4NC4E.. 1.7 (6.114) 0.2 (0.719) 11.5 (.453) 10.2 (.401) 0.2 (.008) 


4.0 mm (.16) 

V4NCS.. 1.8 (6.474) 0.2 (0.719) 10.7 (.421) 9.3 (.366) 0.2 (.008) 

V4NC4S.. 2.0 (7.193) 0.3 (1.079) 10.7 (.421) 9.3 (.366) 0.2 (.008) 

V4NCSE.. 1.8 (6.474) 0.2 (0.719) 11.5 (.453) 10.1 (.397) 0.2 (.008) 

V4NC4SE.. 2.0 (7.193) 0.3 (1.079) 11.5 (.453) 10.1 (.397) 0.2 (.008) 

AR10 V4NC.. 1.3 (4.676) 0.13 (0.467) 15.8 (.622) 14.7 (.579) 0.2 (.008) 

Lever V4NC4.. 1.9 (6.834) 0.2 (0.719) 15.8 (.622) 14.7 (.579) 0.2 (.008) 

V4NCE.. 1.3 (4.676) 0.13 (0.467) 16.5 (.649) 15.4 (.606) 0.2 (.008) 

V4NC4E.. 1.9 (6.834) 0.2 (0.719) 16.5 (.649) 15.4 (.606) 0.2 (.008) 


4.0 mm (.16) 

Operating characteristics 

Operating characteristics shown above are 

specified from mounting hole centres. 

V4NCS.. 1.8 (6.474) 0.2 (0.719) 15.8 (.622) 14.7 (.579) 0.2 (.008) 

V4NC4S.. 2.1 (7.553) 0.3 (1.079) 15.8 (.622) 14.7 (.579) 0.2 (.008) 

V4NCSE.. 1.8 (6.474) 0.2 (0.719) 16.5 (.649) 15.4 (.606) 0.2 (.008) 

V4NC4SE.. 2.1 (7.553) 0.3 (1.079) 16.5 (.649) 15.4 (.606) 0.2 (.008) 

 

 

(± (± (± 

 

(± 

(± (± 

0.3 mm/± .012 in) 

1.3 mm/± .051 in) 

1.3 mm/± .051 in) 

1.2 mm/± .047 in) 

0.7 mm/± .027 in) 

0.6 mm/± .023 in) 

Over 

Travel 


The case should not be used asan end stop.


Switch range: V4NC 


No symbol = Standard force 

4 High force 

Type of Sealing 

No symbol = Unsealed 

S Sealed IP 6K7 

Overtravel 

No symbol = Standard 

E With extended over travel 


Circuit No symbol = Changeover C2 Normally closed 


Actuators 


A1 Plain lever 18.0 mm (.71 in) A7 Plain lever 60.0 mm (2.36 in) 

A2 Plain lever 25.0 mm (.98 in) AC1 Cam follower 18.5 mm (.73 in) 

A3 Plain lever 32.0 mm (1.26 in) AR1 Roller lever 16.0 mm (.63 in) 

Levers fitted at end nearest to Plunger. an attached “0” such as A10, AR10 

specifies fixing at end of the opposite to plunger. 

Contacts 


AUX Gold alloy on silver palladium crosspoint 


Ni1 Silver-Nickel contact 

39 

5.5 max. 

6.4 6.4 6.4 

8.7 max. 

K1 K2 K3 

Mounting 

No symbol = Mounting holes 

B… several mounting pegs on request 

9.7 max. 

V4NC 

V4NC

Panel-mounted Actuators for 

use with the V4NC Series 

Long Overtravel stainless steel Plunger 

QA4 

40 

PBA 4 

Typical Assembly, 

V4NCT7, PBA 4, PBRG & BZR 

14.55 1.5 

(.57) (.45) 

, 

, 

, 

8.65 

(.34) 

12.1 max 

(.47) 

3.6 

4.6 

(.18) 

7.5 

(.29) 

6.45 

(.25) 

2.6 5.08 10.16 

(.10) (.20) (.40) 

20.0 max. 

(.78) 

(.14) 

Long Overtravel stainless steel Plunger 

QA4 Moulded frame, 

Stainless steel plunger 

Overtravel actuator, 

2 locknuts 

The sleeve is threaded M6 fine 

A comprehensive new range of panel-mounted 

actuators with the following features: 

• Can be fitted to all standard travel 

V4NC switches. 

• Simple clip-on attachment. 

• Choice of either round or square push 

buttons and bezels. 

• Single hole mounting (Ø 6.35 mm) or via 

switch mounting holes. 

• Panel sealing if required. 

• Long overtravel stainless steel actuator 

version with 5 mm min. overtravel. 

Recom. max. El. Ratings V4NC(S) 

Voltage Resistive Inductive 

Load 

load 

VAC 

max. 

A 

250 5 2 

A 

Clip-on frame: 


Bezel: 

ABS polymer – black 

Cowl: 

Synthetic Rubber 

“O”-Ring: 

Nitrile 

Locknut: 

Brass Nickel plate 

Button: 

ABS Polymer 

Basic switches: 

V4NC 

(see pages 36–39) 


–10°C to + 85°C. 



Mechanism: 2·106 cycles minimum 

(Impact free actuation). 

Mounting: 

Single hole ø 6.4 mm (0.25) suitable for panels 

up to 8.0 mm (0.3) thick 

Maximum torque to be applied to locknut 

0.4 Nm 

Recom. max. El. Ratings V4NC(S) 

Voltage 

VDC 

max. 

30 

50 

75 

Resistive 

Load 

A 

5 

1 

0,75 

Inductive 

load 

A 

3 

1 

0,75


Switch range: QA4 Steel plunger 

QV4NCT7 for assembly with V4NT7 switches 

Basic Switches 

V4NC.. See pages 36–39 

Standard Button Forms 

Round button Square button 

Round bezel Square bezel 


Button Colour Button Form 

Round Square 

Red PBRR PBSR 

Yellow PBRY PBSY 

Green PBRG PBSG 

Blue PBRBU PBSBU 

White PBRW PBSW 

Black PBRB PBSB 

Bezel (black) 

Round Square 

BZR BZS 

Assembly 

,, 

of Sealing 

, Kit PBSLK 

Diaphragme 

,, , , 

“O”-Ring The Sleeve is 

threaded M6 fine 

PBSLK Sealing Kit (“O”-Ring and Diaphragm), 

suitable for both the square or the round versions. 

Actuator Kit 

PBA 4 

QA 4 

41 

Panel-mounted 

Actuators

V4D with Low Differential Travel 

V4DT7 

42 

V4DT8 

A new range of sub-miniature switches which 

combines the versatility of the V4N range with 

the precise movements of standard size micro 

switches. 

Features include: 

• Movement differential 0.04mm maximum 

• Force differential 0.4N maximum 

• Sealed terminals (7 options) 

• Mounting holes or moulded pegs 

• Wide range of clip-on levers 

• Silver contacts as standard; gold-plated 

contacts for low current applications 

• Snap-on terminal covers 

The series combines the precision of the trident 

mechanism with the smaller V4 envelope. 

Likely applications are seen to be in thermostats 

and in situations where low hysteresis is 

required: 

• Pump control 

• Process control 

• Mechanical handling equipment 

• Machine tools 

• Domestic appliances


Housing: 


Plunger: 


Mechanism: 

Snap-action trident leaf spring mechanism. 

Changeover, normally closed or normally open 

Contacts: 

Fine Silver 

Terminals: 

Refer to page 29 


– 40°C to + 85°C 


1 million minimum (impact free actuation) 



Sealed terminal entries 

Mounting: 

Side mounting 


2.25 mm or 3.2 mm diameter are also 

available. Please consult Burgess. 

Actuators: 

Plain lever 

Cam follower Choice of two styles 

Roller lever 

Accessories: 

Lug mounting frame 

Clip-on terminal covers 


Common 

43 

 

Circuit diagram V4D 

Normally 

closed 

Normally 

open 

Recom. Max. El. Ratings V4D series 

Voltage 

VAC 

125 

250 

up to 

30 

50 

75 

125 

250 

Resistive 

load 

A 

5 

5 

Resistive 

load 

A 

5 

1 

0.75 

0.5 

0.25 

Incandescent 

lamp load 

A 

0.5 

0.5 

Inductive 

load 

5 

5 

Recom. Max. El. Ratings V4D series 

Voltage 

VDC 

Incandescent 

lamp load 

A 

2 

0.4 

0.3 

0.2 

0.1 

inductive 

load 

A 

3 

1 

0.75 

0.03 

0.03 




A 

V4D 


signal circuits where the energy being 

switched is at the milliwatt level. Power being 



from the contact area.

Product Range 



Force 

Maximum 

N (ozf) 

44 

Release 

Force 

Minimum 

N (ozf) 

Free 

Position 

Maximum 

(in) 

Operating 

Position 

mm (in) 

Movement 

Differential 

Maximum 

mm (in) 

Plunger V4DT7 1.0 (3.55) 0.3 (1.07) 8.7 (0.34) 8.1 (0.32) 0.04 (.002) 

± 0.2 (± .008) 

Y1 V4DT7Y1 0.86 (3.1) 0.17 (0.6) 9.5 (0.37) 8.6 (0.34) 0.07 (.003) 

Lever ± 0.3 (± .012) 


4.0 mm (.16) 

Y2 V4DT7Y2 0.62 (2.2) 0.12 (0.42) 10.1 (0.40) 8.8 (0.35) 0.09 (.004) 

Lever ± 0.5 (± .020) 


4.0 mm (.16) 

Y3 V4DT7Y3 0.49 (1.75) 0.09 (0.31) 10.8 (0.43) 8.8 (0.35) 0.12 (.005) 

Lever ± 0.75 (± .030) 


4.0 mm (.16) 

YC V4DT7YC 0.84 (3.0) 0.17 (0.61) 12.2 (0.48) 11.3 (0.45) 0.07 (.003) 

Lever ± 0.35 (± .014) 


4.0 mm (.16) 

YR1 V4DT7YR1 0.97 (3.45) 0.19 (0.68) 14.85 (0.58) 14.1 (0.56) 0.06 (.002) 

Lever ± 0.3 (± .012) 

Operating Characteristics shown above are 

specified from mounting hole centres. To 

calculate the Operating Characteristics for T8 

Series PCB switches from the terminals add 

one of the following: 

1. T8 Add 3.4 to establish characteristics 

from stand off’s on base. 

2. T81/82 Add 3.8 to establish characteristics 

from centre line of formed 

terminals. 

3. T83 Add 4.2 to establish characteristics 

from PCB 

V4D 

Over 

Travel 


The case should not be used as an end stop. 

A further range of options is offered by 

«A» Series levers. At 0.4 mm thick they are 

more rigid than the «Y» Series. They are 

recommended in applications where switches 

are inverted.


Switch range: V4D 

45 

Protection 

No symbol = Unsealed terminals (IP 00), 

Enclosure (IP 40) 


Circuit No symbol = Changeover 



Actuators 


Y1 A1 Plain lever 18.0 mm (0.71 in) 

Y2 A2 Plain lever 25.0 mm ( 0.98 in) 

Y3 A3 Plain lever 32.0 mm ( 1.26 in) 

YC AC1 Cam follower 18.5 mm (0.73 in) 

YR1 AR1 Roller lever 16.0 mm (0.63 in) 

Contacts 


GP Gold plated, fine silver 

V4D 

V4D

V4L-Series 

46 

V4LT7 

Free Position 



3.5 max. 

V4LST7 

Free Position 



3.5 max. 

7 ± 0.15 

(.138) 

7 ± 0.15 

(.138) 

(.275 ± .006) 1(.039) 

2.25 + 0.1 

(.088 +.004) 

0.5 (.019) 

Ø 2.54 ± 0.05 

(.1 ± .002) 

5.16 

(.203) 

5.08 

(.2) 

(.275 ± .006) 1(.039) 

2.25 + 0.1 

(.088 +.004) 

0.5 (.019) 

Ø 2.54 ± 0.05 

(.1 ± .002) 

5.16 

(.203) 

5.08 

(.2) 

15 

(.59) 

2 4 1 

9.53 ± 0.05 

(.375 ± .002) 

5.08 ) 

(.2) 

20 max. 

(.787) 

15 

(.59) 

2 4 1 

9.53 ± 0.05 

(.375 ± .002) 

5.08 ) 

(.2) 

20 max. 

(.787) 

7.68 

(.302) 

7.68 

(.302) 

2.2 ± 0.15 

(.866 ± .006) 

Ø 2.25 + 0.1 

(.088 + .004) 

2.2 ± 0.15 

(.866 ± .006) 

Ø 2.25 + 0.1 

(.088 + .004) 

7.7 ± 0.1 

(.303 ± .004) 

max zul. Überstand 

0.1 mm (.004) 

7.7 ± 0.1 

(.303 ± .004) 

Ø 2.3 

(.09) 

Ø 1.7 + 0.2 

(.067 + .008) 

Ø 2.3 

(.09) 

Ø 1.7 + 0.2 

(.067 + .008) 

Ø 4.4 ± 0.05 

(.173 ± .002) 

6.4 ± 0.1 

(.252 ± .004) 

Ø 6 

(.236) 

6.4 ± 0.1 

(.252 ± .004) 

3.5 ± 0.2 

(.138 ± .008) 

2.95 ± 0.1 

(.116 ± .004) 

3.5 ± 0.2 

(.138 ± .008) 

2.95 ± 0.1 

(.116 ± .004) 

This is the latest development of the Burgess 

V4 range – a sub-miniature micro switch with 

extremely long overtravel. 

The V4L series provides a minimum overtravel 

of 2.2 mm compared to the 0.4 mm/0.9 mm 

available from the standard mechanism. 

Mounting facilities and terminals are similar to 

those featured in the V4N and V4NS series. 

V4LS denotes the sealed version. This can be 

supplied with exposed terminals for on site 

wiring. Ancillaries include a wide range of 

levers and a clip on terminal cover. A prewired 

version is available with either two or 

three flying leads. Degree of protection IP67. 

This new range is unique in meeting two 

market requirements which hitherto have been 

considered contradictory i.e. demand for 

miniaturisation with extended plunger travel. 

They are ideal for applications where 

movement of the actuating medium cannot be 

precisely controlled.


Housing: 


Plunger: 


Cowl: 

Silicon elastomer 

Mechanism: 

Snap-action coil spring mechanism with 

stainless steel spring. Changeover, normally 

closed or normally open 

Contacts: 

Fine silver or crosspoint 


Brass. Moving contact beryllium-copper 

Terminals: 

V4L – solder tags (gold flashed) 

V4LS – PVC covered calbles 0.5 m long 


–40°C to +85°C 


V4L 2 x 106 cycles/min. 

V4LS 5 x 105 cycles/min. 

(Impact free actuation) 


V4L series IP40 

V4LS series IP67 

with encapsulated terminals. 

Mounting: 

Side mounting to a flat surface 


2.25 mm or 3.2 mm diameter are also available. 

Please consult Burgess. 

Actuators: 

Plain lever 

Cam follower 

Roller lever 

Ice break lever 

Circuit diagram V4L 

Common 

47 

Normally 

closed 

Normally 

open 

Recom. Max. Electrical Ratings 

Voltage 

VAC 

125 

250 

Voltage 

VDC 

Resistive 

load 

A 

5 

5 

Incandescent 

lamp load 

A 

0.5 

0.5 

Recom. Max. Electrical Ratings 

up to 

30 

50 

75 

125 

250 

Resistive 

load 

A 

5 

1 

0.75 

0.5 

0.25 

Incandescent 

lamp load 

A 

2 

0.4 

0.3 

0.2 

0.1 

Inductive 

load 

A 

2 

2 

Inductive 

load 

A 

3 

1 

0.75 

0.03 

0.03 

The breaking capacities quoted refer to the 

switch. The loading of the leads and cable 

depends on the heat dissipation and has to 

be checked by testing. 

Circuit diagram with cable colours V4LS 

Black 

Grey 

Blue 

V4L 

V4LS 





overheating and possible dispersal of the 

gold from the contact area.

Product Range 



Force 

Maximum 

N (ozf) 

Plunger V4LT7 2.4 (8.6) 0.4 (1.44) 12.9 (0.507) 11.7 (0.46) 0.9 (0.023) 9.2 (0.36) 2.2 (0.09) 

± 0.4 (± .012) 

V4LST7 2.5 (9.0) 0.5 (1.78) 12.9 (0.507) 11.7 (0.46) 0.9 (0.023) 9.2 (0.36) 2.2 (0.09) 

± 0.4 (± .012) 

A1-Lever V4L…A1 2.4 (8.6) 0.4 (1.44) 12.6 (0..59) 

max 2.5 ± 0.8 (± 0.3) 

Width of 

lever: 

4.0 mm 

(.16) 

V4LS…A1 0.5 (1.78) 12.6 (0..59) 

± 0.8 (± 0.3) 

A2-Lever V4L…A2 1.5 13.5 (0.53) 

Width of 

lever: 

4.0 mm 

(.16) 

V4LS…A2 2.0 

± 1.0 (0.04) 

13.5 (0.53) 

± 1.0 (0.04) 

48 

F-Lever V4L…F 

Width of 

lever: 

4.0 mm 

(.16) 

V4LS…AR1F 

T8 Operating characteristics shown above 

are specified from mounting hole centres. 

Release 

Force 

Minimum 

N (ozf) 

Free 

Position 

Maximum 

mm (in) 

Operating 

Position 

mm (in) 

Movement 

Differential 

Maximum 

mm (in) 

Total over 

Travel Pos. 

Maximum 

mm (in) 

For positions and forces of the auxiliary actuator please contact Burgess. 

V4L 

V4LS 

Over 

Travel 

Minimum 

mm (in)


Switch range: V4L 

Environmental Protection 

No symbol = IP 40 

S = IP67 

Terminal type 

All other terminals on special request. 

Circuit No symbol = Changeover 

C2 Normally closed NC) 

C4 Normally open (NO) 

Mounting 

No symbol = Mounting holes 

Moulded mounting pegs Ø 3,2 mm (.12 in) x 5 mm in (.2 in) long 

Mounting pegs 

B10 on both sides Ø 3,2 mm; 5 mm long 

B11 on one side Ø 3,2 mm; 5 mm long 

B12 on one side Ø 3,2 mm; 5 mm long 

Please request dimensional drawing 

Actuators 


A1 Plain lever 20.0 mm (0.79 in) 



AC1 Cam follower 23.0 mm (0.9 in) 

AR1 Roller lever 23.0 mm (0.69 in) 

F Spring lever 20.0 mm (0.79 in) 

Contacts 

No symbol = Silver 

AUX Gold alloy on silver palladium (Crosspoint) 

49 

All terminals 0.5 mm thick 

V4L 

V4L 

V4LS

X3-Series 

50 

X3..02… 

X3..06... 

3.1 (.12) + 0.1 

– 0. 

X3..15… (RAST 5) 

3.5 (.14) 

+ 0.1 

3.1 (.12) – 0. 

3.5 (.14) 

+ 0.1 

3.1 (.12) – 0. 

3.5 (.14) 

17.15 (.68) 11.5 (.45) 

22.2 (.87) ± 0.1 2.8 (.11) 

27.8 (1.09) 

17.15 (.68) 

+ 0.1 

3.1 (.12) – 0. 

9.5 (.37) 

22.2 (.87) ± 0.1 

2.8 (.11) 

27.8 (1.09) 

3.5 

(.14) 

2.3 (.09) 

22.2 (.87) ± 0.1 2.8 (.11) 

27.8 (1.09) 

17.15 (.68) 

+ 0.1 

3.1 (.12) – 0. 

+ 0.1 

3.1 (.12) – 0. 

16.8 (.66) 

2.8 (.11) 

10.3 (.41) ± 0.1 

6.2 

(.24) 

4.1 

(.16) 

15.9 (.63) 

5 (.2) 5 (.2) 5.2 (.2) 

10.3 

(.40) 

2.6 

(.10) 

1.75 (.07) 

± 0.1 

1.4 (.06) 

± 0.05 

1.75 (.07) 

± 0.1 

10.3 (.41) ± 0.2 

6.3 (.25) 

± 0.1 

10.3 (.41) ± 0.2 

4.8 0 

(.19) -0.1 

10.3 (.41) ± 0.2 

6.3 (.25) 

± 0.1 

5.8 

(.23) 

4.5 (.18) 

± 0.2 

3.2 

(.13) 

± 0.1 

4.5 (.18) 

± 0.2 

3.1 

(.12) 

2.6 

(.10) 

Important features: 

• Exceptional repeat accuracy provided by 

precision snap-action mechanism. 

• Long electrical life due to high contact 

pressure in conjunction with wiping serrated 

contacts. 

• Wide range of levers 

made from C Ni stainless steel which can be 

fitted in two different positions. 

Field of application 

• The switches of the X3-Series are suitable 

for temperatures ranging between –40°C 

and +105°C. 

8 mm creepage and clearance on the 

actuator


Housing: 

Thermoplastic 

Plunger: 

Thermoplastic 

Mechanism: 

A berylium bronze blade mechanism with 

wiping contacts 

Contacts: 

Fine silver (Ag) and AgNi10 


CuZn 

Terminals: 

Solder, Faston and RAST 5 terminals 


Between –40°C and + 105°C. 


EncIosure IP40 

Mounting: 

Side mounting via mounting holes 



Approvals: 

UL, C-UL, SEV, VDE, 

EN 61058-1: SEV, VDE 


 

51 

Common 

 

 

 

Normally 

closed 

Normally 

open 

Recom. max. electrical ratings X3 

X3M 

X3C 

X3L 

Voltage 

VAC 

250 

250 

250 

Resistive 

load 

A 

16 

10 

21 

Motor 

load 

A 

6 

3 

8 


Ag/AgNi contacts. Except X3L Ag/AgCdO. 

X3

Product Range 

Operating Charcteristics 


Force 

Maximum 

N (ozf)) 

Plunger 20.2 (.80) ± 0.2 X3C3 0.8 (2.877) 0.05 (0.179) 15.75 14.7 0.25 13.2 

2.80 (.11) 

(0.62) (0.578) (0.009) (0.52) 

X3M3 1.6 (5.755) 0.20 (0.719) 15.75 14.7 0.25 13.2 

(0.62) (0.578) (0.009) (0.52) 

1 

2 

4 

J02 13.5 (.53) 8.2 (.32) X3C3 ..J02 0.8 (2.877) 0.045 (0.161) 16.5 15.1 ± 0.5 0.35 14.0 

Lever (0.649) (0.59 ± 0.02) (0.014) (0.55) 

1 

2 

4 

X3M3..J02 2.0 (7.193) 0.18 (0.647) 16.5 

(0.649) 

15.1 ± 0.5 

(0.59 ± 0.02) 

0.35 

(0.014) 

14.0 

(0.55) 


7 mm (.28) 

M02 15 (.59) 8.2 (.32) X3C3 ..M02 0.5 (1.798) 0.04 (0.143) 19.2 17.5 ± 0.7 0.35 16.4 

Lever (0.755) (0.69 ± 0.028) (0.014) (0.65) 

X3M3..M02 1.65 (5.934) 0.16 (0.575) 19.2 17.5 ± 0.7 0.35 16.4 

2 

(0.755) (0.69 ± 0.028) (0.014) (0.65) 


7 mm (.28) 

1 4 

L02 12.8 (.5) 8.2 (.32) X3C3 ..L02 0.8 (2.877) 0.045 (0.161) 21.8 20.5 ± 0.6 0.35 19.5 

Lever (0.858) (0.81 ± 0.024) (0.014) (0.76) 

X3M3..L02 2.0 (7.193) 0.19 (0.683) 21.8 20.5 ± 0.6 0.3 19.5 

2 

(0.858) (0.81 ± 0.024) (0.011) (0.76) 

1 4 


7 mm (.28) 

T02 

12.8 (.5) 8.2 (.32) 

X3C3 ..T02 0.8 (2.877) 0.045 (0.161) 21.8 20.2 ± 0.7 0.35 19.3 

Lever (0.858) (0.79 ± 0.028) (0.014) (0.76) 

X3M3..T02 2.0 (7.193) 0.19 (0.683) 21.8 20.2 ± 0.7 0.35 19.3 

2 

(0.858) (0.79 ± 0.028) (0.014) (0.76) 

1 4 


7 mm (.28) 

52 

15.75 

(.62) 

14.7 

(.58) 

16.5 

(.65) 

15.1 

(.59) 

19.2 

(.76) 

17.5 

(.69) 

21.8 

(0.86) 

20.5 

(.81) 

21.8 

(0.86) 

20.2 

(.80) 

R 2.4 

(.09) 

11.3 

(.44) 

R 16 (.63) 

11.3 

(.44) 

11.3 

(.44) 

(.56) 

R 2.4 

(.09) (.44) 

11.3 

R 14.2 

Release 

Force 

Minimum 

N (ozf)) 

Free 

Position 

Maximum 

mm (in) 

Operating 

Position 

mm (in) 

Movement 

Differential 

Maximum 

mm (in) 

X3 

Full Over- 

Travel 

Position 

mm (in)



Actuating forces 

M = Standard force 1 Fs max.: 160 cN 

L = Standard force 2 Fs max.: 150 cN 

C = Low force Fs max.: 80 cN 

Circuits 


4 = Normally closed (NC) 

5 = Normally open (NO) 

Terminal type 

02 = Plug terminal 6.3 x 0.8 mm 

03 = Solder terminal 



12 = Solder terminal, short 

13 = PCB-terminal, bent to lid 

14 = PCB-terminal, bent to base 

15 = Plug terminal RAST 5 6.3 x 0.8 mm 

16 = Plug terminal RAST 5 4.8 x 0.8 mm 

Housing design 

K = Thermoplastic 

Contacts 

2 = Silver / Ag Ni 10 

6 = AgCdO 

8 = Gold plated 


in accordance with UL/C-UL 

A = 20.5 A 125/250 VAC 

15 A 125/250 VAC 100’000 cy. 

1 1/2 HP 250 VAC; 1/2 HP 125 VAC 

D = 21 A 250 VAC 

2 HP 250 VAC; 1 HP 125 VAC 

E = 21 A 125/250 VAC 

15 A 125/250 VAC 100’000 cy. 

2 HP 250 VAC; 1 HP 125 VAC 

K = 20.5 A 125/250 VAC 

1 1/2 HP 250 VAC; 1/2 HP 125 VAC 

L = 12 A 125/250 VAC 

1/3 HP 250 VAC; 1/6 HP 125 VAC 

M = 6 A 125/250 VAC 

1/3 HP 250 VAC; 1/6 HP 125 VAC 


Electr. rating classes 

in accordance with EN/IEC 

A = 16 (6) A 250 V ~ 5E4 T105 µ approved 

D = 21 (8) A 250 V ~ 1E4 T105 µ approved 

B = 10 (3) A 250 V ~ 5E4 T105 µ approved 

C = 6 (3) A 250 V ~ 5E4 T105 µ approved 

Actuators 



L0 to L9 = Simulated roller lever 

M0 to M9 = Customer specified lever (KV) 

T0 to T9 = R oller level 

U0 to U9 = outside mounted lever 

Actuator position 


2 = rear lever 

4 = front lever 

Customer version 

No digit = Standard type 

AA to YY = Specials for customer 

53 

X 3 

X3

XG-Series 

54 

XG2 

XG6 

+ 0.1 

3.1 – 0. 

(.12) 

+ 0.1 

3.1 – 0. 

(.12) 

XG15 (RAST 5) 

+ 0.1 

3.1 – 0. 

(.12) 

+ 0.1 

3.1 – 0. 

(.12) 

± 0.03 

0.8 

(.11) 

17.15 11.5 

3.5 

(.68) 

(.14) 22.2 ± 0.1 2.8 

(.87) 

27.8 

(1.09) 

(.11) 

3.5 

+ 0.1 

3.1 – 0. 

(.12) 

17.15 

(.68) 

0.5 ± 0.03 

(.02) 

9.5 

(.37) 

(.14) 22.2 ± 0.1 2.8 

(.87) 

27.8 

(1.09) 

(.11) 

3.5 

+ 0.1 

3.1 – 0. 

(.12) 

(.14) 22.2 ± 0.1 2.8 

(.87) 

(.11) 

27.8 

(1.09) 

17.15 

(.68) 

±0.03 

0.8 

(.03) 

2.3 

(.09) 

16.8 

(.66) 

2.8 

(.11) 

10.3 ± 0.1 

(.41) 

4.1 6.2 

(.16) (.24) 

3.5 

(.14) 

5 5 5.2 

(.20) (.20) (.20) 

15.9 

(.63) 

10.3 

(.41) 

3.1 

(.12) 

1.75± 

0.1 

(.07) 

1.4 ± 0.1 

(.06) 

0 

4.8 -0.1 

(.19) 

1.75 

(.07) 

10.3 ± 0.2 

(.41) 

6.3 ± 0.1 

(.25) 

10.3 ± 0.2 

(.41) 

6.3 ± 0.1 

(.25) 

10.3 ± 0.2 

(.41) 

6.3 ± 0.1 

(.25) 

4.5 ± 0.2 

(.18) 

3.2 ± 0.1 

(.13) 

4.5 

(.18) 

5.8 

(,23) 

3.1 

(.12) 

2.6 

(.10) 

Main specifications 

• Very close tolerances of the operating position 

and movement differential due to a 

simple snap-action mechanism incorporating 

precise housings made from high quality 

duroplastic together with the highest degree 

of accuracy during manufacture and 

assembly. 


• Wide range of solder, faston and PCB terminals 

together with RAST 5 terminal concept 

compatible with AMP standard timer 

housings. 


• snap-action mechanism provides precise 

operating position and movement 

differential. 

• Switches incorporate high quality press 

parts and Duroplast mouldings. 

• High contact pressure and serated 

contacts. 

• Wide range of CrNi stainless steel levers 

which can be mounted in either of two 

positions. 

• Various terminal options; wide range of 

solder, faston, pcb, etc. 

• Temperature range: 

XG series are suitable for use in temperatures 

ranging from –40°C to +85°C. High 

temperature versions (150°C) are also 

available. 

• Worldwide availability 

Significant advantages 

• Excellent performance – high quality 

standards 

• Short and flexible delivery times 

• Design service for special models for particular 

applications 


• Domestic appliances (microwave ovens, 

washing machines, etc.) 

• Gaming machines 

• Vending machines 

• Heating, ventilating and air-conditioning 

equipment


Housing: 

Phenolic-Melamine, Thermosetting 

Plunger: 

POM for T85 

PBT for T140 

Mechanism: 

Heat-treated spring made from beryllium 

bronze, 4 parallel current path, high contact 

pressure. 

Contacts: 

– Pure silver (Ag), gold-plated 4 µm (Au), 

silver cadmium oxide (AgCdO) 

– 30 µm Ag on Cu1) 1) only with reduced electrical rating of 

2 (0,5) A 250 VAC 

Terminals: 

Solder, faston, screw, PCB and side mounting 

PCB terminals. RAST 5 terminals, 5.0 mm 

pitch. 


Between –40 °C and + 85 °C. 



Mounting: 

Side mounting 


3·105 cycles minimum, 5 · 106 cycles 

maximum (Actuation: sinusoidal and 

maximum up to 80% of the overtravel) 

Approvals: 

VDE, UL, CSA, 

Circuit diagram XG 

 

55 

Common 

 

 

 

Normally 

closed 

Normally 

open 

Recom. max. El. Ratings XG/XGG 


Motor 

load 

load 

VAC 

A 

250 16 6 

Recom. max. El. Ratings XGM 

Voltage 

VAC 

Resistive 

load 

A 

250 16 6 

Recom. max. El. Ratings XGK 


load 

VAC 

A 

250 10 3 

VAC 

The breaking capacities in the tables 

refer to silver contacts with faston terminals 

6,3 x 0.8 mm. 

A 

Motor 

load 

A 

Motor 

load 

Recom. max. El. Ratings XGC (XGC-86)* 


Motor 

load 

load 

250 

400 

A 

6 

4* 

A 

A 

3 

3* 

Recom. max. El. Ratings XGA 


load 

VAC 

A 

250 16 

VAC 

250 

400 * 

16 

10* 

XG 

Recom. max. El. Ratings XGO (XGO-86)* 


Motor 

load 

load 

A 

Recom. max. El. Ratings XGB 


load 

VAC 

A 

250 10 

Recom. max. El. Ratings XGH 


load 

VAC 

A 

250 6 

VAC 

250 26 

Motor 

load 

A 

6 

A 

6 

6* 

Motor 

load 

A 

3 

Motor 

load 

Recom. max. El. Ratings XGT C-86 


Motor 

load 

load 

A 

A 

2 

A 

10 

Recom. max. El. Ratings XGD C-86 


Motor 

load 

load 

VAC 

A 

250 22 

A 

6

Product Range 


1) Lever distance 8.2 (0.32) for leverposition –.20 

Lever distance 14.0 (0.55) for leverposition –.40 

56 

XG 


Force 

Release 

Force 

Free 

Position 

Operating 

Position 

Movement 

differential 

Total travelled 

position 

Maximum Minimum Maximum 

Maximum Maximum 

Plunger 

20.2 (.79) ± 0.2 

2.92 (.11) 

2 

1 4 

XG/XGG.. 

XGA../XGT… 

XGB.. 

XGC.. 

XGH.. 

XGK.. 

XGM.. 

N (ozf) 

3,2 (11.43) 

3,2 (11.43) 

1,5 (5.36) 

0,8 (2.86) 

0,45 (1.61) 

1,5 (5.36) 

2,0 (7.14) 

N (ozf) 

0,4 (1.43) 

0,6 (2.14) 

0,3 (1.07) 

0,1 (0.36) 

0,05 (0.18) 

0,2 (0.71) 

0,5 (1.79) 

mm (in) 

15,75 (.62) 

15,75 (.62) 

15,75 (.62) 

15,75 (.62) 

15,6 (.61) 

15,75 (.62) 

15,6 (.61) 

mm (in) 

 

14,7 (.57) 

14,7 (.57) 

14,7 (.57) 

14,7 (.57) + 0,2 

14,5 (.57) – 0,4 

14,7 (.57) (+ .007 

14,5 (.57) – .015) 

mm (in) 

0,35 (.013) 

0,15 (.006) 

0,15 (.006) 

0,15 (.006) 

0.35 (.013) 

0,35 (.013) 

0,35 (.013) 

mm (in) 

13,2 (.519) 

13,2 (.519) 

13,2 (.519) 

13,2 (.519) 

13,7 (.539) 

13,2 (.519) 

13,7 (.539) 

XGO.. 1,2 (4.29) 0,1 (0.36) 15,6 (.61) 14,5 (.57) 0,35 (.013) 13,7 (.539) 

XGD 1,7 (6.07) 0,15 (0.54) 15.75 (.62) 14.7 (.57) 0,15 (.006) 13,2 (.519) 

15.75 (.62) 

J20- 13.5 (.53) 8.2 (.32) 1) 

XG/XGG.. -J20 3,2 (11.43) 0,36 (1.29) 16,5 (.64) 15,1 ± 0,5 (.59 ± .019) 0,4 (.015) 14,0 (.551) 

Lever XGA.. -J20 3,2 (11.43) 0,54 (1.93) 16,5 (.64) 15,1 ± 0,5 (.59 ± .019) 0,2 (.007) 14,0 (.551) 

XGB.. -J20 1,5 (5.36) 0,27 (0.96) 16,5 (.64) 15,1 ± 0,5 (.59 ± .019) 0,2 (.007) 14,0 (.551) 


7 mm (.28) 

1 

2 

4 

XGC.. 

XGH.. 

XGK.. 

XGM.. 

XGO.. 

-J20 

-J20 

-J20 

-J20 

-J20 

0,8 (2.86) 

0,45 (1.61) 

1,5 (5.36) 

2.0 (7.14) 

1,2 (4.29) 

0,09 (0.32) 

0,04 (0.14) 

0,18 (0.64) 

0,45 (1.61) 

0,09 (0.34) 

16,5 (.64) 

16,5 (.64) 

16,5 (.64) 

16,5 (.64) 

16,5 (.64) 

15,1 ± 0,5 (.59 ± .019) 

15,0 ± 0,5 (.59 ± .019) 

15,1 ± 0,5 (.59 ± .019) 

15,0 ± 0,5 (.59 ± .019) 

15,0 ± 0,5 (.59 ± .019) 

0,2 (.007) 

0,4 (.015) 

0,4 (.015) 

0.4 (.015) 

0,4 (.015) 

14,0 (.551) 

14,4 (.566) 

14,0 (.551) 

14,4 (.566) 

14,4 (.566) 

16.5 (.65) 

15.1 

(.59) 

11.8 

(.46) 

M20- 

Lever 

15 (.59) 8.2 (.32) 1) XG/XGG..-M20 

XGA.. -M20 

2,6 (9.29) 

2,6 (9.29) 

0,32 (1.14) 

0,48 (1.71) 

19,2 (.75) 

19,2 (.75) 

17,5 ± 0,7 (.68 ± .027) 

17,5 ± 0,7 (.68 ± .027) 

0,45 (.017) 

0,20 (.007) 

16,4 (.645) 

16,4 (.645) 

XGB.. -M20 1,25 (4.46) 0,24 (0.86) 19,2 (.75) 17,5 ± 0,7 (.68 ± .027) 0,20 (.007) 16,4 (.645) 

XGC.. -M20 0,65 (2.32) 0,08 (0.29) 19,2 (.75) 17,5 ± 0,7 (.68 ± .027) 0,20 (.007) 16,4 (.645) 


7 mm (.28) 

1 

2 

4 

XGH.. 

XGK.. 

XGM.. 

XGO.. 

-M20 

-M20 

-M20 

-M20 

0,37 (1.32) 

1,25 (4.46) 

1,65 (5.89) 

1,0 (3.57) 

0,04 (0.14) 

0,16 (0.57) 

0,40 (1.43) 

0,08 (0.29) 

19,2 (.75) 

19,2 (.75) 

19,2 (.75) 

19,2 (.75) 

17,3 ± 0,7 (.68 ± .027) 

17,5 ± 0,7 (.68 ± .027) 

17,3 ± 0,7 (.68 ± .027) 

17,3 ± 0,7 (.68 ± .027) 

0,45 (.017) 

0,45 (.017) 

0,45 (.017) 

0,45 (.017) 

16,9 (.665) 

16,4 (.645) 

16,9 (.665) 

16,9 (.665) 

L20- 

Lever 

12.65 8.2 1) 

(.50) (.32) 

XG/XGG..-L20 

XGA.. -L20 

3,2 (11.43) 

3,2 (11.43) 

0,38 (1.36) 

0,85 (3.04) 

21,8 (.85) 

21,8 (.85) 

20,5 ± 0,6 (.81 ± .023) 

20,5 ± 0,6 (.81 ± .023) 

0,4 (.015) 

0,2 (.007) 

19,5 (.767) 

19,5 (.767) 

XGB.. -L20 1,5 (5.36) 0,29 (1.04) 21,8 (.85) 20,5 ± 0,6 (.81 ± .023) 0,2 (.007) 19,5 (.767) 

XGC.. -L20 0,8 (2.86) 0,09 (0.32) 21,8 (.85) 20,5 ± 0,6 (.81 ± .023) 0,2 (.007) 19,5 (.767) 

XGH.. -L20 0,45 (1.61) 0,04 (0.14) 21,8 (.85) 20,3 ± 0,6 (.80 ± .023) 0,4 (.015) 19,8 (.779) 

Width 

of lever 

7 mm (.28) 

1 

2 

4 

XGK.. 

XGM.. 

XGO.. 

-L20 

-L20 

-L20 

1,5 (5.36) 

2,0 (7.14) 

1,2 (4.29) 

0,19 (0.68) 

0,48 (1.71) 

0,09 (0.32) 

21,8 (.85) 

21,8 (.85) 

21,8 (.85) 

20,5 ± 0,6 (.81 ± .023) 

20,3 ± 0,6 (.80 ± .023) 

20,1 ± 0,6 (.79 ± .023) 

0,4 (.015) 

0,4 (.015) 

0,4 (.015) 

19,5 (.767) 

19,8 (.779) 

19,8 (.779) 

S20- 

Lever 

12.65 8.2 1) 

(.50) (.32) XG/XGG..-S20 

XGA.. -S20 

3,2 (11.43) 

3,2 (11.43) 

0,37 (1.32) 

0,56 (2.00) 

21,8 (.85) 

21,8 (.85) 

20,2 ± 0,7 (.79 ± .027) 

20,2 ± 0,7 (.79 ± .027) 

0,4 (.015) 

0,2 (.007) 

19,3 (.759) 

19,3 (.759) 

XGB.. -S20 1,5 (5.36) 0,28 (1.00) 21,8 (.85) 20,2 ± 0,7 (.79 ± .027) 0,2 (.007) 19,3 (.759) 

XGC.. -S20 0,8 (2.86) 0,09 (0.32) 21,8 (.85) 20,2 ± 0,7 (.79 ± .027) 0,2 (.007) 19,3 (.759) 

Width 

of roller 

6.6 mm (0.26) 

1 

2 

4 

XGH.. 

XGK.. 

XGM.. 

XGO.. 

-S20 

-S20 

-S20 

-S20 

0,45 (1.61) 

1,5 (5.36) 

2,0 (7.14) 

1,2 (4.29) 

0,04 (0.14) 

0,18 (0.64) 

0,47 (1.68) 

0,09 (0.32) 

21,8 (.85) 

21,8 (.85) 

21,8 (.85) 

21,8 (.85) 

20,1 ± 0,7 (.79 ± .027) 

20,2 ± 0,7 (.79 ± .027) 

20,1 ± 0,7 (.79 ± .027) 

20,1 ± 0,7 (.79 ± .027) 

0,4 (.015) 

0,4 (.015) 

0,4 (.015) 

0,4 (.015) 

19,7 (.775) 

19,3 (.759) 

19,7 (.775) 

19,7 (.775) 

T20-* 

Lever 

12.65 8.2 1) 

(.50) (.32) 

XG/XGG..-T20 

XGA.. -T20 

3,2 (11.43) 

3,2 (11.43) 

0,37 (1.32) 

0,56 (2.00) 

21,8 (.85) 

21,8 (.85) 

20,2 ± 0,7 (.79 ± .027) 

20,2 ± 0,7 (.79 ± .027) 

0,4 (.015) 

0,2 (.007) 

19,3 (.759) 

19,3 (.759) 

XGB.. -T20 1,5 (5.36) 0,28 (1.00) 21,8 (.85) 20,2 ± 0,7 (.79 ± .027) 0,2 (.007) 19,3 (.759) 

XGC.. -T20 0,8 (2.86) 0,09 (0.32) 21,8 (.85) 20,2 ± 0,7 (.79 ± .027) 0,2 (.007) 19,3 (.759) 

Width 

of roller 

6.6 mm (0.26) 

1 

2 

4 

XGH.. 

XGK.. 

XGM.. 

XGO.. 

-T20 

-T20 

-T20 

-T20 

0,45 (1.61) 

1,5 (5.36) 

2,0 (7.14) 

1,2 (4.29) 

0,04 (0.14) 

0,18 (0.64) 

0,47 (1.68) 

0,09 (0.32) 

21,8 (.85) 

21,8 (.85) 

21,8 (.85) 

21,8 (.85) 

20,1 ± 0,7 (.79 ± .027) 

20,2 ± 0,7 (.79 ± .027) 

20,1 ± 0,7 (.79 ± .027) 

20,1 ± 0,7 (.79 ± .027) 

0,4 (.015) 

0,4 (.015) 

0,4 (.015) 

0,4 (.015) 

19,7 (.775) 

19,3 (.759) 

19,7 (.775) 

19,7 (.775) 

19.2 (.76) 

17.5 

(.69) 

21.8 

(.86) 

21.8 

(.86) 

21.8 

(.86) 

14.7 

(.58) 

R 2.35 

(.09) 

20.5 

(.81) 

R 2.4 

(.09) 

20.5 

(.81) 

R 2.4 

(.09) 

20.5 

(.81) 

R 16 (.63) 

11.8 

(.46) 

R 14.2 

(.56) 

11.8 

(.46) 

R 14.2 

(.56) 

11.8 

(.46) 

R 14.2 

(.56) 

11.8 

(.46) 

*For high temperature T 150°C


Basic types XG/XGG XGC XGK XGT 

XGA XGH XGM XGD 

XGB XGO 

Circuits 

No symbol = Changeover all basic types 

4 = Normally closed (NC) all basic types except XG/XGG and XGK 

5 = Normally open (NO) all basic types 

Terminal type 

2 = Faston 6.3 x 0.8 mm 

3 = Solder 

6 = Faston 4.8 x 0.5 mm 

10 = Faston 4.8 x 0.8 mm 

12 = Short solder, hole Ø 2.3 mm 

15 = RAST 5, 6.3 x 0.8 mm 

Other types of terminals are available on request. 

Version Number of operations Number of operations 

Temperature Temperature at rated load at rated load 

Europe UL Europe UL 

T85 T90 50’000 6’000 

W = T150 T130 50’000 6’000 

A = T85 T90 50’000 100’000 

AW = T150 T130 50’000 100’000 

B = T85 T90 10’000 6’000 

BS = T55 T90 10’000 6’000 

BW = T150 T130 10’000 6’000 

C = T85 T90 25’000 6’000 

Contacts 

No symbol = Silver (Ag) 

81 = Gold-plated 4 µm (Au) on Ag 

82 = Silver cadmium oxide (AgCdO) 

86 = Ag / Ag CdO 

Actuators 


J22 Plain lever r = 24,0 mm L20 Cam follower r = 12,5 mm 



J43 Plain lever r = 12,8 mm S20 Roller lever r = 27,8 mm 

J27 Plain lever r = 60,0 mm S40 Roller lever r = 12,8 mm 

M20 formed r = 15,0 mm T20* Roller lever r = 12,8 mm 

M40 formed r = 15,0 mm 

*150° version 

Other actuators available on request 

57 

XG. 

XG

VB-Series 

58 

VBSP/1633 

VBFY1/1633 

VBFYR1/1633 

15.9 

(0.63) 

15.9 

(0.63) 

13.1 max. 

(.52) 

Ø 3.12 +0.1 

(.12) 

13.1 max. 

(.52) 

ROLLER Ø 4.8 (.19) 

15.9 

(0.63) 

2.8 

(.11) 

Ø 3.12 +0.1 

(.12) 

13.1 max. 

(.52) 

Ø 3.12 +0.1 

(.12) 

2.8 (.11) 

26.2 

(1.03) 

24.2 

(.95) 

2.0 (.08) 

22.2 ± 0.1 

(.88) 

28.0 max. 

(1.1) 

11.1 

(.44) 

2.0 (.08) 

22.2 ± 0.1 

(.88) 

28.0 max. 

(1.1) 

2.8 

(.11) 

11.1 

(.44) 

2.0 (.08) 

22.2 ± 0.1 

(.88) 

28.0 max. 

(1.1) 

Ø 3.12 +0.1 (.12) 

Ø 3.12 +0.1 (.12) 

10.3 ± 0.05 

10.3 ± 0.05 

Ø 3.12 +0.1 (.12) 

10.3 ± 0.05 

(.41) 

4.2 

(.17) 

6.5 max. 

(.25) 

(.41) 

7.2 

(.28) 

10.7 

(.42) 

(.41) 

7.2 

(.28) 

10.7 

(.42) 

10.1 max (.40) 

6.3 (.25) 

10.1 max (.40) 

6.3 (.25) 

4.3 

(.17) 

4.3 

(.17) 

10.1 max (.40) 

4.3 

(.17) 

6.3 (.25) 

4.2 (.17) 

7.2 (.28) 

7.2 (.28) 

A range of miniature snap action switches 

with either solder or faston terminals. All 

models feature > 3 mm minimum contact gap 

which is suitable for a wide range of domestic 

commercial and industrial applications. 

The coil spring mechanism ensures long 

mechanical life, excellent repeat accurancy 

and true snap action independent of speed of 

plunger movement. 

In addition to the plunger version both models 

are available with plain or roller lever integral 

actuators.


Housing: 

Glass-reinforced Polyamide (PA 6.6) 

Plunger: 

Plain plunger versions (PA 6.6) 

Lever versions - polyacetal (POM) 

Mechanism: 

Normally-open only 

> 3 mm minimum contact gap 

Contacts: 

Fixed - fine silver 

Moving - silver cadmium oxide 

Terminals: 

VBF - 6.3 mm (0.25 in) faston 

VBSP - solder 


– 10°C to +85°C 


106 cycles minimum (impact free actuation) 


IP40 

Mounting: 

Side mounting 

Actuators: 

Levers - stainless steel 

Rollers - polyamide (PA 6.6) 

Approvals: 

VBF/1633 

VBSP/1633 

VBFY1/1633 

VBFYR1/1633 

 

Common 

59 

 

 

 

Circuit diagram VB... 

 

CSA, UL, VDE 

VDE 

Normally 

open 

Recom. Max. El. Ratings VBF / 1633 

Voltage 

VAC 

up to 

250 7 


A 

Recom. Max. El. Ratings VBFY1 / 1633 

Voltage 

VAC 

up to 

250 7 


A 

Recom. Max. El. Ratings VBSP / 1633 

Voltage 

VAC 

up to 

250 7 


A 

up to 

250 10 

VB 

Recom. Max. El. Ratings VBF9 / 1633 


VAC 

up to 

A 

Recom. Max. El. Ratings VBSP9 / 1633 


VAC 

A 

250 10 

Recom. Max. El. Ratings VBFYR1 / 1633 

Voltage 

VAC 

up to 

250 7 


A

Product Range 



Force 

Maximum 

N (ozf) 

60 

Release 

Force 

Minimum 

N (ozf) 

Free 

Position 

Maximum 

mm (in) 

Operating 

Position 

mm (in) 

Movement 

Differential 

Maximum 

mm (in) 

Plain VBF/1633 5.6 (20) 1.1 (4.0) 15.9 (0.63) 14.3 (0.56) 0.9 (0.035) 

Plunger ± 0.5 (± 0.02) 

Plain VBF9/1633 8.5 (31) 1.6 (5.7) 15.9 (0.63) 14.3 (0.56) 0.9 (0.035) 

Plunger ± 0.5 (± 0.02) 

Plain VBSP/1633 5.6 (20) 1.1 (4.0) 15.9 (0.63) 14.3 (0.56) 0.9 (0.035) 

Plunger ± 0.5 (± 0.02) 

Plain VBSP9/1633 8.5 (31) 1.6 (5.7) 15.9 (0.63) 14.3 (0.56) 0.9 (0.035) 

Plunger ± 0.5 (± 0.02) 

Y1 VBFY1/1633 2.4 (8.6) 0.42 (1.5) 18.0 (0.71) 14.5 (0.57) 2.15 (0.085) 

Lever ± 1.2 (± 0.05) 

26.2 

(1.03) 

YR1 VBFYR1/1633 3.1 (11.2) 0.4 (1.5) 23.1 (0.91) 20.6 (0.81) 2.4 (0.09) 

Lever ± 1.2 (± 0.05) 

24.2 

(.95) 

ROLLER Ø 4.8 (.19) 

Operating characteristics are specified from 

mounting holes (see page 48). 

VB 

Over 

Travel 




Switch Range: VB.. 

Terminals 

F 6.3 mm (0.25 in) faston x 0.8 mm (0.032) 

SP solder 

Actuators 


Y1 Plain lever 26.2 mm (1.03 in) 

YR1 Roller lever 24.2 mm ( .95 in) 

1633 – 3 mm minimum contact gap 

61 

VB 1633 

VB

Positive Action Switch 

BVM3-Series 

62 

BVM3F 

13.1 max. 

(.52) 

Ø 3.12 +0.1 

(.12) 

BVM3FY 

13.1 max. 

(.52) 

2.8 

(.11) 

Ø 3.12 +0.1 

(.12) 

2.8 (.11) 

2.0 (.08) 

22.2 ± 0.1 

(.88) 

28.0 max. 

(1.1) 

13.7 

(.54) 

11.1 

(.44) 

2.0 (.08) 

22.2 ± 0.1 

(.88) 

28.0 max. 

(1.1) 

Ø 3.12 +0.1 (.12) 

Ø 3.12 +0.1 (.12) 

10.3 ± 0.05 

10.3 ± 0.05 

(.41) 

4.2 

(.17) 

11.4 max. 

(.45) 

(.41) 

4.2 

(.17) 

11.4 max. 

(.45) 

10.1 max (.40) 

6.3 (.25) 

10.1 max (.40) 

6.3 (.25) 

4.3 

(.17) 

4.3 

(.17) 

4.2 (.17) 

7.2 (.28) 

BVM3 Series 

Miniature safety interlock switch for use in 

domestic and industrial applications where 

there is a clean, dry environment. The 

mounting holes on the switches comply with 

the required international standard for 

miniature switches which makes them ideal 

replacements for snap-action switches in 

applications requiring positive action 

switching. 

All models feature a contact gap of > 3 mm at 

full travel.


Housing: 


Plunger: 

Polyamide (PA 6.6) 

Lid: 

Polycarbonate (PC) 

Mechanism: 

Single break positive action 

> 3 mm contact gap 

Contacts: 

Fixed – fine silver 

Moving – Silver cadmium oxide 

Terminals: 

6.3 mm (0.25 in) faston 


– 10°C to + 85°C 




IP40 

Mounting: 

Side mounting 

Actuators: 

Stainless steel lever 

Polyamide (PA 6.6) roller 

Approvals: 

CSA, UL 

Circuit diagram BVM3 

63 

 

Common 

 

 

Normally 

closed 

Recom. maximum Elec. Ratings BVM3 

Voltage 

VAC 

max. 

250 10 

Resistive 

load 

A 

BVM3

Product Range 



Force at 

Contact 

Max. N (ozf) 

64 

Force at 

total Travel 

Maximum 

N (ozf) 

Free 

Position 

Maximum 

mm (in) 

Minimum 

gap at 

total Travel 

mm (in) 

Plunger BVM3F 4.5 (16.2) 4.8 (17.3) 15.8 (0.62) 3.0 (0.12) 

13.7 

(.54) 

Y- 

Lever 

BVM3FY 4.5 (16.2) 4.8 (17.3) 16.8 (0.66) 3.0 (0.12) 

YR- 

Lever 

BVM3FYR 5.0 (18.0) 5.5 (19.8) 22.35 (0.88) 3.0 (0.12) 

11.7 

(.48) 

ROLLER Ø 4.8 (.19) 

Operating characteristics are specified from 

the mounting holes. 

BVM3 

Over 

Travel 

Depress to case


Switch series: BVM3F.. 

Actuators 


Y lever 13.7 mm (0.54) 

YR Roller lever 11.7 mm (0.46) 

65 

BVM3F 

BVM3

Low Profile-Series (LP) 

66 

LPSP 

LPDP 

The Low Profile series is an innovative 

approach to the increasing use of printed circuit 

boards as carriers of electrical-electronic 

switching units. 

Special features 

• Low overall height 

• Stable, PCB mounting 

• Precise cylindrical plunger guarantees a 

high degree of repeat accuracy 

• Enclosure provides protection to IP40 

• Solder pin terminals with 2.54 mm (0.1 inch) 

spacing 

• Lever attachment possible at both ends of 

switch 

• Location pegs for multi-pole use 

• Single and double-pole systems available 

as standard 

• Double-pole version available with defined 

sequence 

• Extensive range of operating levers 

Standard switches in the LPDP series do 

not have a deliberate switching sequence. 

However, defined switching sequences can 

be supplied if required.


Housing: 


Plunger: 

Polyacetal (POM) (Double pole) 

Polyamide (P.A. 6.6) (Single pole) 

Mechanism: 


stainless steel spring. Single or double pole 

changeover. Normally-closed and Normallyopen 

versions are available. 

Contacts: 

Fine silver 


Gold plate on nickel underlay 

Terminals: 

PCB silver or gold flashed 


–10°C to +85°C 


10 7 cycles minimum (impact-free actuation) 



Flux-proof terminal entries 

Mounting: 

PCB or side-mounting 

Actuators: 

Single pole Double pole 

Plain lever Plain lever 

Cam follower 

Special features: 

Double-pole versions consist of two mechanically 

and electrically isolated mechanisms 

actuated by a common plunger. Versions with 

a defined sequence are available. 

Approvals: 

Single pole – UL; CSA 

67 

Circuit 

diagram 

LP.SP 

Common 

Normally 

closed 

Normally 

open 

Recom. Max. Electrical Ratings LPHSP 

Voltage 

VAC 

125 

250 

Voltage 

VAC 

125 

250 

Recom. Max. El. Ratings LP1DP/LP1SP 

Voltage 

VAC 

125 

250 


A 

3 

3 


A 

2 

2 


A 

1.5 

1.5 


A 

1.5 

1.5 

Recom. Max. El. Ratings LPDP/LPSP 


A 

1 

1 


A 

0.75 

0.75 


Voltage 

VAC 

125 

250 

Circuit 

diagram 

LP.DP 

Common 

Common 


A 

1 

1 


A 

0.5 

0.5 


Normally open 


Normally open 

up to 

30 

50 

75 

up to 

30 

50 

75 

1 

0.2 

0.1 

1 

0.2 

0.1 

LP 

Recom. Max. Electrical Ratings LPHSP 


VDC 

up to 

30 

50 

75 

Recom. Max. El. Ratings LPDP/LPSP 


VDC 



VDC 

up to 

30 

50 

A 

1.5 

0.3 

0.15 

A 

0.7 

0.15 

1.5 

0.3 

0.15 



VDC 

A 

2 

0.5 

0.25 

A 

2 

0.5 

0.25 


silver contacts. 







A 

A 

A 

A 

0.7 

0.15

Product Range 



Force 

Maximum 

N (ozf) 

Plunger LPHSP 1.8 (6.5) 0.28 (1.0) 9.2 (0.36) 

LPSP 1.4 (5) 0.2 (0.72) 9.2 (0.36) 

LP1SP 0.75 (2.7) 0.12 (0.43) 9.2 (0.36) 

LP2SP 0.5 (1.8) 0.08 (0.29) 9.2 (0.36) 

Y1- LPHSPY1 0.6 (2.2) 0.06 (0.22) 13.5 (0.53) 

Lever LPSPY1 0.5 (1.8) 0.04 (0.14) 13.5 (0.53) 

LP1SPY1 0.3 (1.1) 0.02 (0.07) 13.5 (0.53) 

LP2SPY1 0.2 (0.72) 0.02 (0.07) 13.5 (0.53) 


4.0 mm (.16) 

YC- LPHSPYC 0.6 (2.2) 0.06 (0.22) 16.0 (0.63) 

Lever LPSPYC 0.5 (1.8) 0.04 (0.14) 16.0 (0.63) 


4.0 mm (.16) 

LP1SPYC 0.3 (1.1) 0.02 (0.07) 16.0 (0.63) 

LP2SPYC 0.2 (0.72) 0.02 (0.07) 16.0 (0.63) 

Plunger LPDP 2.8 (10) 0.4 (1.44) 9.2 (0.36) 

LP1DP 1.5 (5.4) 0.25 (0.9) 9.2 (0.36) 

LP2DP 1.0 (3.6) 0.15 (0.54) 9.2 (0.36) 

Y1- LPDPY1 1.0 (3.6) 0.09 (0.32) 13.5 (0.53) 

Lever LP1DPY1 0.5 (1.8) 0.06 (0.22) 13.5 (0.53) 

LP2DPY1 0.4 (1.44) 0.03 (0.1) 13.5 (0.53) 


9.0 mm (.35) 

Datum for Free Position and Operating Position stand off’s on base. 

68 

Release 

Force 

Minimum 

N (ozf) 

Free 

Position 

Maximum 

mm (in) 

Operating 

Position 

mm (in) 

Movement 

Differential 

Maximum 

mm (in) 

8.35 (0.33) 0.18 

± 0.3 (± 0.01) (0.007) 

10.1 (0.4) 0.8 

± 1.2 (± 0.05) (0.03) 

12.9 (0.51) 0.8 

± 1.5 (± 0.06) (0.03) 

Minimum 

Minimum 

8.95 

8.05 (0.32) (0.35) 

Maximum 

Release 

Position 

12.5 

8.9 (0.35) (0.49) 

Maximum 

Release 

Position 

LP 

Over 

Travel 




Switch range: LP LP 


No symbol= Standard force 

H High force 

1 Low force 

2 Very low force 

see table page 22 

Number of poles 

SP Single pole 

DP Double pole 

Circuit 

No symbol = Changeover 



Actuators 

No symbol= Plunger 



Contacts 



AU Gold plate on nickel underlay 

69 

LP

XKA-Series 

70 

XKA304W1AAJ21 

17.4 

(.69) 

14.9 ± 1.6 

(.59) 

(.59) 

± 0.2 

15 

Detail A 

24.1 

(.95) 

18 ± 0.2 

(.71) 

12.5 (.49) 

5.8 

(.23) 

Detail A 8.9 

(.35) 

1.8 

(.07) 

1.8 

(.07) 

2 ± 0.2 

(.08) 

3.1 (.12) 

22 ± 0.1 

(.87) 

28 ± 0.2 

(1.10) 

1.5 (.06) 1.5 (.06) 

26 (1.02) 

6.1 

(.24) 45° 

1 

(.04) 

7.1 ± 0.1 

(.28) 

1.4 ± 0.05 

(.06) 

± 0.1 

2.3 

(.09) 

6.7 

(.26) 

0.5 

± 0.02 

(.02) 

-2° 

25° 

± 5° 

34° 

9 ± 0.1 

(.35) 

7.8 ± 0.2 

(.3) 

2.8 ± 0.05 (.11) 

12 ± 0.2 

(.47) 

+ 0.2 

15 0 

(.59) 

18 Important features 

• The highest number of components in the 

smallest possible space 

• Extremely long overtravel 

• May be mounted directly onto PCBs 

• Minimal space requirement 

• Size 

(Length: 28 mm, width:15 mm, 

height 42 mm) 

• Long mechanical life because of the coil 

spring mechanism 

• Nominal currents up to 1A 250 AC 


• Refrigerators 


• Copiers 


• Door switches


Housings: 

Crastin PBT 

Plunger: 

Crastin PBT 

Mechanism: 



Contacts: 

Silver 


Brass 

Terminals: 

Faston 


85°C 


Enclosure IP 40 

Mountings: 

Snap-on fixing 


3·106cycles minimum 

Approvals: 

UL 1054: UL, CSA, VDE, DEMKO, SEV 

Circuit diagramm XKA 

71 

Common 

 

Normally 

open 

Normally 

closed 

Recommended max. ratings XKA 

Voltage 

VAC 

Resistive 

load 

A 

250 1 1 

Die Schaltleistungen in den Tabellen 

beziehen sich auf Silberkontakte. 

Motor 

load 

A 

XKA

Product Range 

Ordering Characteristics 


Force 

Maximum 

cN (ozf)) 

72 

Release 

Force 

Minimum 

cN (ozf) 

Free 

Position 

Maximum 

mm (in) 

Operating 

Position 

mm (in) 

XKA 

Staigth Lever XKA3-J21 62 ± 25 24 ± 15 17,4 14,9 ±1,6 5,8 

(223 ± 90) (86 ± 54) (0.685) (0.59 ±0.06) (0.23) 

17.4 

(.69) 

14.9 ± 1.6 

(.59) 

5.8 

(.23) 

2± 

0.2 

(.08) 

Round Lever XKA3-L11 130 ±50 50 ± 30 11 9.6 ±0,8 5,9 

(468 ±180) (180 ± 108) (0.433) (0.38 ± 0.31) (0.24) 

11 

(0.43) 

9.6 ± 0.8 

(.38) 

5.9 

(.24) 

-2° 

-2° 

25° 

25° 

± 5° 

± 5° 

34° 

34° 

Full 

Overtravel 

Position 

mm(in)


Switch Range XKA 

Circuit 

3 = Change over 

Terminal type 

03 = solder terminal 

04 = faston 2,8 x 5,0 mm, 45º bended 

Housing designs 

W = PTB white 

S = PTB black 

Contacts 

1 = Silver 

8 = Gold microprofile (crossbar contact) 

Approval classes in accordance with UL/CSA 

A = 1A 250 VAC 

3.0A 125 VAC 

N = No approval 


in accordance with EN / IEC 

A = 1 (1) A 250V ~ 5E4 T85 

Actuators 

J1 = Straight lever 4,5 mm width 

J2 = Straight lever 9,0 mm width 

L1 = Round lever 

Assembling position of actuator 

1 = Standard 

AA toYY = Specials for customer 

73 

XKA 

XKA

Mid-off Switch 

M0T11 

Ø 2.4 ±0.05 

(Ø .094 ±.002) 

74 

0.5 (3x) 

(.02) 

2 

(.078) 

max. angle 

0.5 x 45° 

(.019 x 45°)Operating angle 

SP2 SP1 

10.6 ± 0.3 (.417 ±.012) 

NO2 C NO1 

13 ± 0.3 

(.512 ±.012) 

2 -0.5 (2x) 

(.078 –.002) 

5 ±0.2 

(.197±.008) 

°±° 55°± 5° 

4.3 ±0.3 

(.169 ±.012) 

6.1 ±0.3 

(.240 ±.012) 

12.1 ± 0.3 

(.476 ±.012) 

4.1 ±0.2 

1.9 ± 0.3 

(.075 ±.012) 

(.161 ±.008) 

9.5 ± 0.1 (.374 ± .004) 13.4 ± 0.5 (.527 ± .02) 

+ 0.5 

3.5 –0.3 

+.016 

(.137 –.004) 

2.7 ±0.1 

(.106 ±.004) 

+ 0.5 

4 –0.3 

+ .02 

(.157 –.012) 

3.7 

(.146) 

M 

3 (3x) 

(.118) 

5.5 

(.216) 

11.4 (.449) 

F 

Smallest dimensions and 

maximum safety 

An important prerequisite for the high reliability 

of the new mid-off switch has been reducing 

separate housing parts to one unit. 

By using the twin-shot process, all four parts 

of the housing, comprising two different 

plastics, are produced in a single moulding. 

The twin-shot process is a dual-component 

technology which uses a two-stage injection 

moulding process first to produce the hard 

plastic shell and then the soft sealing aera. 

By selecting appropriate materials, both plastic 

form a molecular bond. The result is a completely 

sealed connection, without adhesive or 

mechanical joints. 

This new process guarantees maximum reliability, 

even under the toughest conditions. 

Assembly is fully automatic, including testing, 

and enables fault-free production at minimal 

cost


Operating temperature: 

–40°C to +85°C 

Mechanism: 

Leaf spring mechanism 


up to 200’000 cycles 


IP 6K7 

Materials 

Cowl: TPE 

Housing: PP + GF 

Base: PA + GF 

Pendulum: PA 

Contacts: Gold 

Terminals: Brass 

Circuit diagram M0T11 

75 

Normally 

closed 

SP 2 

C 

SP 1 

NO2 NO1 

Common Normally 

open 

Voltage 

VAC 

12 100 


mA 




Voltage 

VAC 

12 5 


mA 


Voltage 

VDC 

12 100 

Voltage 

VDC 

12 5 


mA 



mA

Product Range 

Ordering Charcteristics 

Actuator Reference Free 

Position 

Maximum 

mm (in) 

76 


Operating 

Position 

mm (in) 

M0T11 0° 10° ± 4° 31° 

Maximum 

Angle

SAIA-BURGESS-PRODUKTÜBERSICHT - Wagner GmbH

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