SIEMENS
5/3
Siemens IC 10 · 2017
Switching Devices – Contactors and Contactor Assemblies
Contactor Relays and Relays
Introduction
5
More information
Home page,
see www.siemens.com/relays
Industry Mall,
see www.siemens.com/product?3RQ_3RS_LZ
Conversion tool, e.g. from 3TX7 to 3RQ3,
see
www.siemens.com/sirius/conversion-tool
The advantages at a glance
Type
3RQ3
3RS18
LZS/LZX
Article No.
Page
SIRIUS 3RQ3 coupling relays, narrow design
Coupling relays with relay output
(not plug-in)
• Width 6.2 mm, 1 CO,
versions with hard gold-plated contacts optionally available
-
Output coupling links
3RQ301
5/39
-
Input coupling links
3RQ303
5/39
Coupling relays with plug-in
relays
• Width 6.2 mm, 1 CO,
versions with hard gold-plated contacts optionally available
-
Output coupling links
3RQ311
5/39
Coupling relays with
semiconductor output
(not plug-in)
• Width 6.2 mm, output 1 semiconductor, triac or transistor
-
Output coupling links
3RQ305, 3RQ306
5/39
-
Input coupling links
3RQ307
5/39
SIRIUS 3RS18 coupling relays with industrial enclosure
Coupling relays with relay output
• Protective separation up to 300 V between contacts and relay circuits
• 1, 2 or 3 changeover contacts
• Hard gold-plated contacts in combination and wide voltage range
versions
3RS18
5/42
LZS coupling relays with plug-in relays
Coupling relays with plug-in
relays with 2, 3 or 4 changeover
contacts
• Switching capacity 12 A/10 A/6 A
• Width 27 mm
• Base with or without logical separation
LZS:PT, LZX:PT
5/47 ... 5/49
Coupling relays with plug-in
relays with 3 changeover
contacts and circular base
• Switching capacity 10 A
• 11-pole circular base
• Width 38 mm
LZS:MT, LZX:MT
5/49
Coupling relays with plug-in
relays with 1 or 2 changeover
contacts
• Switching capacity 16 A/8 A
• Width 15.5 mm
• Base with or without logical separation
LZS:RT, LZX:RT
5/50
© Siemens AG 2016