Siemens SIRIUS 3RQ2 Coupling Series Relay, DIN Rail Mount

Subtotal (1 unit)*

£54.23

(exc. VAT)

£65.08

(inc. VAT)

Add to Basket
Select or type quantity
In Stock
  • 8 unit(s) ready to ship from another location
  • Plus 11 unit(s) shipping from 07 November 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 +£54.23

*price indicative

RS Stock No.:
193-1945
Mfr. Part No.:
3RQ2000-1BW00
Brand:
Siemens
Find similar products by selecting one or more attributes.
Select all

Brand

Siemens

Mounting Type

DIN Rail

Series

SIRIUS 3RQ2 Coupling

Maximum Input Voltage

240V

Minimum Input Voltage

24V

Terminal Type

Screw

Depth

100mm

Height

90mm

Length

22.5mm

Special Features

Monostable Switching

Dimensions

22.5 x 91.6 x 100mm

Minimum Operating Temperature

-40°C

Input Voltage Range

24 → 240V

Operating Temperature Range

-40 → +60°C

Life

100000 Cycles

Maximum Operating Temperature

+60°C

COO (Country of Origin):
DE

Siemens Optocoupler, 240V AC/DC, Monostable Switching - 3RQ2 Series- 3RQ2000-1BW00


Ensure the safe and reliable transmission of digital signals to your automated systems with this optocoupler from Siemens. It's a semiconductor that uses a light-sensitive optical interface to relay signals. The unit connects isolated circuits that can't be joined directly due to differences in electrical potential or voltage. It guarantees information compatibility by applying the algorithms needed for the interaction of functional components in special control instruments. You can use this coupling relay to control and protect large radio-electronic and x-ray installations.

• Wide voltage range of 24V to 240V AC/DC for versatility
• Special monostable switching feature regenerates old pulses for more reliable operation
• DIN rail mounting for simple and secure installation
• Compact dimensions of 22.5 (length) x 91.6 (width) x 100mm (depth) to save space
• Long mechanical service life of 10 million switching cycles for long-lasting use

Can I use an optocoupler instead of a relay?


No. An optocoupler is not designed to switch loads like a relay. If your application needs you to perform this dual function, you'll need a relay with a built-in optocoupler.

Related links