Catalog LV1 T 2009 Chapter 3 EN

3
Controls — Contactors and Contactor Assemblies
Introduction
The advantages at a glance
Coupling links, narrow design
Relay couplers Width 6.2 mm (1 NO, 1 CO), 12.5 mm and 17.5 mm
Output coupling links
Input coupling links with hard gold-plating
Plug-in base couplers, complete with relay Width 6.2 mm (1 NO, 1 CO)
Relays, replaceable
Plug-in base couplers, complete with relay
and hard gold-plating
Connection method
The contactors and relays are available with screw terminals
(box terminals and connecting bars) or with Cage Clamp terminals
or spring-type terminals. Some device types are also available
with plug-type connectors.
3/4
Siemens LV 1 T · 2009
Order No. Page
3TX7 002, 3/148
3TX7 003,
3TX7 004,
3TX7 005
3TX7 014-1. .00 3/152
Width 6.2 mm (1 CO) 3TX7 014-1. .02 3/152
Semiconductor couplers
Coupling relays in industrial housing
Output 1 semiconductor, triac or transistor 3TX7 002,
3TX7 004,
3TX7 005
3/152
Relay couplers Protective separation up to 300 V between contacts and relay
circuits
1, 2 and 3 changeover contacts
Hard gold-plated contacts in combination and wide voltage
range versions
3RS18 3/157
Coupling relays with plug-in relays
Plug-in relay couplers with 2, 3 and 4 changeover
contacts
Plug-in relay couplers with 1, 2 changeover
contacts
Plug-in relay couplers with 3 changeover contacts
and circular base
3TX7 3RS18 LZS/LZX 3TG10
Switching capacity 12 A/10 A/6 A
Width 27 mm
Base optionally with or without logical isolation
Switching capacity 16 A/8 A
Width 15.5 mm
Base optionally with or without logical isolation
Switching capacity 6 A
11-pole circular base
Width 38 mm
LZS/LZX:PT 3/160
LZS/LZX:RT 3/160
LZS/LZX:MT 3/160
Power relays
With screw and flat connectors 3TG10 3/164
Screw terminals
Cage Clamp terminals or spring-type terminals
Flat connectors
Plug-in terminals
Solder pin connections
These connections are indicated in the Technical
specifications by orange backgrounds.
© Siemens AG 2009