SIEMENS 3RH1122-1BB40 Auxiliary Contactor with 3RT1916-1BB00 Varistor E05

SIEMENS 3RH1122-1BB40 Auxiliary Contactor with 3RT1916-1BB00 Varistor E05

Product Description

The SIEMENS 3RH1122-1BB40 auxiliary contactor combined with the 3RT1916-1BB00 varistor is a reliable industrial control solution from the SIEMENS SIRIUS product family. This compact assembly is designed for dependable auxiliary switching and enhanced coil protection in industrial automation and motor control systems.

The integrated 3RT1916-1BB00 varistor provides effective suppression of voltage spikes generated during switching operations, helping to protect control electronics and extend the service life of connected components. The robust industrial design ensures reliable performance in demanding operating environments.

Main Features

• Original SIEMENS SIRIUS auxiliary contactor assembly
• Model: 3RH1122-1BB40
• Integrated varistor: 3RT1916-1BB00
• Version: E05
• Reliable auxiliary switching performance
• Integrated surge voltage suppression
• Compact industrial construction
• Suitable for automation and control systems
• Reduced electromagnetic interference during switching
• Long electrical and mechanical service life
• Screw terminal connections
• Easy DIN rail or panel mounting

Applications

The SIEMENS 3RH1122-1BB40 with 3RT1916-1BB00 varistor is widely used in industrial automation and motor control applications where reliable switching and coil protection are required.

• Industrial control panels
• Motor starter systems
• Automation equipment
• Machine control circuits
• Interlocking and signaling systems
• Factory automation applications
• Switchgear assemblies
• Industrial electrical cabinets

Technical Specifications

• Manufacturer: SIEMENS
• Series: SIRIUS
• Part Number: 3RH1122-1BB40
• Varistor Part Number: 3RT1916-1BB00
• Product Type: Auxiliary contactor with varistor
• Version: E05
• Connection Type: Screw terminals
• Mounting Type: DIN rail / panel mounting
• Function: Auxiliary switching with surge suppression
• Industrial Grade: Yes
• Compact modular design

Advantages

The SIEMENS 3RH1122-1BB40 auxiliary contactor assembly with integrated 3RT1916-1BB00 varistor offers reliable switching performance, improved protection against voltage transients, and easy integration into industrial control systems. Its compact construction and durable design make it an ideal solution for modern automation and motor control applications.