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Siemens 3RH1122-2WB40 Contactor Relay 24V DC, 2 NO + 2 NC

Siemens 3RH1122-2WB40 Contactor Relay for auxiliary circuits.

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ManufacturerSiemens

Part number3RH1122-2WB40

Part Number 3RH1122-2WB40

Manufacturer Siemens

Type Contactor Relay

Voltage 24 V DC

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2 NO + 2 NC contacts 24V DC coil Size S00 Spring-type terminals Integrated varistor Vibration-resistant connections

Product description

The Siemens 3RH1122-2WB40 is a 24V DC contactor relay for auxiliary circuits, featuring 2 normally open (NO) and 2 normally closed (NC) contacts. It is designed for size S00 and employs spring-type terminals for connection. This relay operates with a 24V DC coil and includes an integrated varistor for surge protection, with a power consumption of 1.4 W. It is part of the SIRIUS 3RH11 series.

This contactor relay is ideal for a wide range of industrial automation applications, including control panel wiring, motor control circuits, and general auxiliary switching duties. The spring-type terminals ensure a secure connection in environments subject to vibration.

Stanlo Automation, a veteran-owned surplus parts distributor, offers reliable access to components like the Siemens 3RH1122-2WB40. We are committed to providing quality, hard-to-find industrial automation parts to support your maintenance and operational needs.

Technical specifications

Part Number	3RH1122-2WB40
Manufacturer	Siemens
Type	Contactor Relay
Voltage	24 V DC
Contacts	2 NO + 2 NC
Size	S00
Termination	Spring-type Terminal
Features	Integrated varistor
Power Consumption	1.4 W

Common applications

Control panels

Motor control

Auxiliary switching

Industrial automation

Machine wiring

Automation systems

Compatible systems

Industrial control panels Automation equipment Motor starter circuits

Also known as

Siemens 3RH1122-2WB40 SIRIUS 3RH11 24V DC Contactor Relay Siemens Spring Terminal Relay

Replaces / compatible with

This part is a phased-out product with a successor being the SIRIUS 3RH2 series, specifically the 3RH2122-2SB40.

Technical note

Expert tip

The integrated varistor is designed to protect the coil from transient overvoltages, enhancing the relay's lifespan in noisy electrical environments.

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Frequently asked questions

What are the features of the Siemens 3RH1122-2WB40 contactor relay?

The Siemens 3RH1122-2WB40 is a 24V DC contactor relay (Size S00) with 2 NO + 2 NC contacts, spring-type terminals, and an integrated varistor for surge protection.