SIEMENS 3RH1122-1BB40 Auxiliary Contactor with 3RH1911-1HA13 Auxiliary Switch

SIEMENS 3RH1122-1BB40 Auxiliary Contactor with 3RH1911-1HA13 Auxiliary Switch

Product Description

The SIEMENS 3RH1122-1BB40 auxiliary contactor combined with the 3RH1911-1HA13 auxiliary switch is a reliable control component from the SIEMENS SIRIUS industrial switching range. This compact assembly is designed for efficient auxiliary switching, signaling, and interlocking functions in industrial automation and motor control applications.

The integrated auxiliary switch block extends the switching capabilities of the contactor and enables flexible use in control circuits and automation systems. Its durable industrial construction ensures dependable operation and long service life in demanding industrial environments.

Main Features

• Original SIEMENS SIRIUS auxiliary contactor assembly
• Model: 3RH1122-1BB40
• Auxiliary switch block: 3RH1911-1HA13
• Compact modular industrial design
• Reliable auxiliary switching performance
• Suitable for control and signaling circuits
• Extended contact functionality
• Easy installation and integration
• High electrical and mechanical durability
• Screw terminal connections
• Reliable operation in industrial environments

Applications

The SIEMENS 3RH1122-1BB40 with 3RH1911-1HA13 auxiliary switch is commonly used in industrial control systems where dependable auxiliary switching and monitoring functions are required.

• Industrial control panels
• Motor control systems
• Automation and process control
• Interlocking circuits
• Machine control applications
• Factory automation systems
• Switchgear assemblies
• Industrial signaling systems

Technical Specifications

• Manufacturer: SIEMENS
• Series: SIRIUS
• Part Number: 3RH1122-1BB40
• Auxiliary Switch Part Number: 3RH1911-1HA13
• Product Type: Auxiliary contactor with auxiliary switch
• Connection Type: Screw terminals
• Mounting Type: DIN rail / panel mounting
• Application: Auxiliary switching and control circuits
• Industrial Grade: Yes
• Compact modular construction
• Suitable for industrial automation systems

Advantages

The SIEMENS 3RH1122-1BB40 auxiliary contactor assembly provides reliable switching performance, flexible auxiliary contact expansion, and simple integration into industrial control systems. Its robust construction and compact design make it an excellent solution for modern automation and motor control applications.