3RH2122-2JB40

coupling contactor relay, 2 NO + 2 NC, 24 V DC, 0.7-1.25*Us, with integrated diode, spring-loaded terminal, frame size S00, suitable for PLC outputs, not expandable with auxiliary switch

Siemens

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New Sealed — New and unused, supplied in original manufacturer packaging.

New — New and unused. Original manufacturer packaging may be opened, missing or replaced.

Refurbished — Professionally inspected, tested and restored to full working condition.

Used — Previously used, inspected and tested as fully operational.

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Full 24 months warranty
Worldwide Delivery

Condition: New Sealed

£25.00

Est. shipping: October 20 2026

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Full 12 months warranty
Worldwide Delivery

Condition: New

Priced on Request

Est. shipping: October 02 2026

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Full 12 months warranty
Worldwide Delivery

Condition: Used

Priced on Request

Est. shipping: October 02 2026

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Product Overview:

The 3RH2122-2JB40 is a coupling contactor relay featuring 2 normally open (NO) and 2 normally closed (NC) contacts, designed for DC 24V control voltage. It includes an integrated diode and has spring-loaded terminals for secure connections. The relay is configured with a frame size S00, making it suitable for PLC outputs and various automation applications. It is rated for a current of 3A at 400V AC, with specifications supporting high surge voltage resistance (up to 6 kV) and shock resistance (10g/5ms).

This description was generated automatically and may contain errors. Please check specifications against your part number or the manufacturer's datasheet.

Part Number:
3RH2122-2JB40
Manufacturer:
Availability:
10+ available from our partners
Conditions:
New Sealed, New and Used
Warranty:
Full 24 months warranty
Full 12 months warranty
Lead Time:
Need it Faster? Please Check With CJS
System ID Number:
7803147
Shipping:
We deliver worldwide
Weight:
0.32kg
Dimensions:
50mm x 74mm x 78mm
Also Known As:
3RH2122_2JB40, 3RH21222JB40, 3RH2122/2JB40, 3RH2122-2JB40

Siemens is a global leader in industrial automation, digitalisation, and electrification, offering products such as PLCs, drives, industrial robots, and process control systems. Known for innovation and sustainability, Siemens’ technologies enhance efficiency, safety, and performance across industries like manufacturing, energy, and healthcare.

***CJS Automation is NOT an authorised distributor of Siemens***

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