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Siemens LZS RT Coupling Relays with Plug-in Relay, Complete Units

Siemens LZS RT Coupling Relays with Plug-in Relay, Complete Units

LZS RT-series 8-pole complete coupling relay units with 5 mm pinning print relay, socket, fixing/ejection bracket and labeling plate.

Key features

  • Complete units with 1 or 2 changeover contacts, 15.5 mm width
  • Standard plug-in socket or socket with logical separation
  • Screw terminals or spring-loaded (push-in) terminals
  • Red LED modules (24 V DC with freewheeling diode) or green LED modules with freewheeling diode
  • Rated control supply 24 V DC, 24/115/230 V AC

Specifications

Series LZS RT
Poles 8-pole, 5 mm pinning
Width 15.5 mm
Mounting Snap-on TH 35 DIN rail
Scope of supply Relay, socket, bracket, label plate
PS 5 units
Source Siemens Catalog IC 10 · 2026, p. 430
LZS:RT3A4L24 Socket: Standard | Contacts: 1 CO | Coil: 24 V DC | LED: Red, with freewheeling diode | Connection: Screw
LZS:RT3A4R24 Socket: Standard | Contacts: 1 CO | Coil: 24 V AC | LED: Red | Connection: Screw
LZS:RT3A4S15 Socket: Standard | Contacts: 1 CO | Coil: 115 V AC | LED: Red | Connection: Screw
LZS:RT3A4T30 Socket: Standard | Contacts: 1 CO | Coil: 230 V AC | LED: Red | Connection: Screw
LZS:RT4A4L24 Socket: Standard | Contacts: 2 CO | Coil: 24 V DC | LED: Red, with freewheeling diode | Connection: Screw
LZS:RT4A4R24 Socket: Standard | Contacts: 2 CO | Coil: 24 V AC | LED: Red | Connection: Screw
LZS:RT4A4S15 Socket: Standard | Contacts: 2 CO | Coil: 115 V AC | LED: Red | Connection: Screw
LZS:RT4A4T30 Socket: Standard | Contacts: 2 CO | Coil: 230 V AC | LED: Red | Connection: Screw
LZS:RT3A4L24A Socket: Standard | Contacts: 1 CO | Coil: 24 V DC | LED: Green, with freewheeling diode | Connection: Screw
LZS:RT4A4L24A Socket: Standard | Contacts: 2 CO | Coil: 24 V DC | LED: Green, with freewheeling diode | Connection: Screw
LZS:RT3B4L24 Socket: Logical separation | Contacts: 1 CO | Coil: 24 V DC | LED: Red, with freewheeling diode | Connection: Screw
LZS:RT3B4R24 Socket: Logical separation | Contacts: 1 CO | Coil: 24 V AC | LED: Red | Connection: Screw
LZS:RT3B4S15 Socket: Logical separation | Contacts: 1 CO | Coil: 115 V AC | LED: Red | Connection: Screw
LZS:RT3B4T30 Socket: Logical separation | Contacts: 1 CO | Coil: 230 V AC | LED: Red | Connection: Screw
LZS:RT4B4L24 Socket: Logical separation | Contacts: 2 CO | Coil: 24 V DC | LED: Red, with freewheeling diode | Connection: Screw
LZS:RT4B4R24 Socket: Logical separation | Contacts: 2 CO | Coil: 24 V AC | LED: Red | Connection: Screw
LZS:RT4B4S15 Socket: Logical separation | Contacts: 2 CO | Coil: 115 V AC | LED: Red | Connection: Screw
LZS:RT4B4T30 Socket: Logical separation | Contacts: 2 CO | Coil: 230 V AC | LED: Red | Connection: Screw
LZS:RT3B4L24A Socket: Logical separation | Contacts: 1 CO | Coil: 24 V DC | LED: Green, with freewheeling diode | Connection: Screw
LZS:RT4B4L24A Socket: Logical separation | Contacts: 2 CO | Coil: 24 V DC | LED: Green, with freewheeling diode | Connection: Screw
LZS:RT3D4L24 Socket: Logical separation | Contacts: 1 CO | Coil: 24 V DC | LED: Red, with freewheeling diode | Connection: Push-in
LZS:RT3D4R24 Socket: Logical separation | Contacts: 1 CO | Coil: 24 V AC | LED: Red | Connection: Push-in
LZS:RT3D4S15 Socket: Logical separation | Contacts: 1 CO | Coil: 115 V AC | LED: Red | Connection: Push-in
LZS:RT3D4T30 Socket: Logical separation | Contacts: 1 CO | Coil: 230 V AC | LED: Red | Connection: Push-in
LZS:RT4D4L24 Socket: Logical separation | Contacts: 2 CO | Coil: 24 V DC | LED: Red, with freewheeling diode | Connection: Push-in
LZS:RT4D4R24 Socket: Logical separation | Contacts: 2 CO | Coil: 24 V AC | LED: Red | Connection: Push-in
LZS:RT4D4S15 Socket: Logical separation | Contacts: 2 CO | Coil: 115 V AC | LED: Red | Connection: Push-in
LZS:RT4D4T30 Socket: Logical separation | Contacts: 2 CO | Coil: 230 V AC | LED: Red | Connection: Push-in
LZS:RT3D4L24A Socket: Logical separation | Contacts: 1 CO | Coil: 24 V DC | LED: Green, with freewheeling diode | Connection: Push-in
LZS:RT4D4L24A Socket: Logical separation | Contacts: 2 CO | Coil: 24 V DC | LED: Green, with freewheeling diode | Connection: Push-in
Coupling RelaysSiemens
30 product codes available in this family
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Siemens LZS RT Coupling Relays with Plug-in Relay, Complete Units

Brand Siemens·Coupling Relays

Available part numbers (30)

LZS:RT3A4L24, LZS:RT3A4R24, LZS:RT3A4S15, LZS:RT3A4T30, LZS:RT4A4L24, LZS:RT4A4R24, LZS:RT4A4S15, LZS:RT4A4T30, LZS:RT3A4L24A, LZS:RT4A4L24A + 20 more — see full table ↓

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Product codes & specifications
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RFQ List (0)
Product codeSpec
LZS:RT3A4L24Socket: Standard | Contacts: 1 CO | Coil: 24 V DC | LED: Red, with freewheeling diode | Connection: Screw
LZS:RT3A4R24Socket: Standard | Contacts: 1 CO | Coil: 24 V AC | LED: Red | Connection: Screw
LZS:RT3A4S15Socket: Standard | Contacts: 1 CO | Coil: 115 V AC | LED: Red | Connection: Screw
LZS:RT3A4T30Socket: Standard | Contacts: 1 CO | Coil: 230 V AC | LED: Red | Connection: Screw
LZS:RT4A4L24Socket: Standard | Contacts: 2 CO | Coil: 24 V DC | LED: Red, with freewheeling diode | Connection: Screw
LZS:RT4A4R24Socket: Standard | Contacts: 2 CO | Coil: 24 V AC | LED: Red | Connection: Screw
LZS:RT4A4S15Socket: Standard | Contacts: 2 CO | Coil: 115 V AC | LED: Red | Connection: Screw
LZS:RT4A4T30Socket: Standard | Contacts: 2 CO | Coil: 230 V AC | LED: Red | Connection: Screw
LZS:RT3A4L24ASocket: Standard | Contacts: 1 CO | Coil: 24 V DC | LED: Green, with freewheeling diode | Connection: Screw
LZS:RT4A4L24ASocket: Standard | Contacts: 2 CO | Coil: 24 V DC | LED: Green, with freewheeling diode | Connection: Screw
LZS:RT3B4L24Socket: Logical separation | Contacts: 1 CO | Coil: 24 V DC | LED: Red, with freewheeling diode | Connection: Screw
LZS:RT3B4R24Socket: Logical separation | Contacts: 1 CO | Coil: 24 V AC | LED: Red | Connection: Screw
LZS:RT3B4S15Socket: Logical separation | Contacts: 1 CO | Coil: 115 V AC | LED: Red | Connection: Screw
LZS:RT3B4T30Socket: Logical separation | Contacts: 1 CO | Coil: 230 V AC | LED: Red | Connection: Screw
LZS:RT4B4L24Socket: Logical separation | Contacts: 2 CO | Coil: 24 V DC | LED: Red, with freewheeling diode | Connection: Screw
LZS:RT4B4R24Socket: Logical separation | Contacts: 2 CO | Coil: 24 V AC | LED: Red | Connection: Screw
LZS:RT4B4S15Socket: Logical separation | Contacts: 2 CO | Coil: 115 V AC | LED: Red | Connection: Screw
LZS:RT4B4T30Socket: Logical separation | Contacts: 2 CO | Coil: 230 V AC | LED: Red | Connection: Screw
LZS:RT3B4L24ASocket: Logical separation | Contacts: 1 CO | Coil: 24 V DC | LED: Green, with freewheeling diode | Connection: Screw
LZS:RT4B4L24ASocket: Logical separation | Contacts: 2 CO | Coil: 24 V DC | LED: Green, with freewheeling diode | Connection: Screw
LZS:RT3D4L24Socket: Logical separation | Contacts: 1 CO | Coil: 24 V DC | LED: Red, with freewheeling diode | Connection: Push-in
LZS:RT3D4R24Socket: Logical separation | Contacts: 1 CO | Coil: 24 V AC | LED: Red | Connection: Push-in
LZS:RT3D4S15Socket: Logical separation | Contacts: 1 CO | Coil: 115 V AC | LED: Red | Connection: Push-in
LZS:RT3D4T30Socket: Logical separation | Contacts: 1 CO | Coil: 230 V AC | LED: Red | Connection: Push-in
LZS:RT4D4L24Socket: Logical separation | Contacts: 2 CO | Coil: 24 V DC | LED: Red, with freewheeling diode | Connection: Push-in
LZS:RT4D4R24Socket: Logical separation | Contacts: 2 CO | Coil: 24 V AC | LED: Red | Connection: Push-in
LZS:RT4D4S15Socket: Logical separation | Contacts: 2 CO | Coil: 115 V AC | LED: Red | Connection: Push-in
LZS:RT4D4T30Socket: Logical separation | Contacts: 2 CO | Coil: 230 V AC | LED: Red | Connection: Push-in
LZS:RT3D4L24ASocket: Logical separation | Contacts: 1 CO | Coil: 24 V DC | LED: Green, with freewheeling diode | Connection: Push-in
LZS:RT4D4L24ASocket: Logical separation | Contacts: 2 CO | Coil: 24 V DC | LED: Green, with freewheeling diode | Connection: Push-in

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