SIEMENS 3RH1122-1BB40 Power Contactor with 3RH1911-1FA22 Auxiliary Switch

SIEMENS 3RH1122-1BB40 Power Contactor with 3RH1911-1FA22 Auxiliary Switch

Product Description

The SIEMENS 3RH1122-1BB40 power contactor combined with the 3RH1911-1FA22 auxiliary switch is a compact and reliable industrial switching solution from the SIEMENS SIRIUS product range. This assembly is designed for dependable control, auxiliary switching, and signaling functions in industrial automation and motor control systems.

The integrated 3RH1911-1FA22 auxiliary switch expands the contactor functionality and enables flexible use in interlocking, monitoring, and control circuits. Its robust industrial construction ensures reliable operation and long service life even in demanding industrial environments.

Main Features

• Original SIEMENS SIRIUS power contactor assembly
• Model: 3RH1122-1BB40
• Integrated auxiliary switch: 3RH1911-1FA22
• Compact modular industrial design
• Reliable switching and control performance
• Suitable for auxiliary and control circuits
• Extended signaling and interlocking capability
• Easy installation and maintenance
• High electrical and mechanical durability
• Screw terminal connections
• Suitable for DIN rail and panel mounting

Applications

The SIEMENS 3RH1122-1BB40 with 3RH1911-1FA22 auxiliary switch is widely used in industrial control and automation systems where dependable switching and auxiliary contact functions are required.

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

Technical Specifications

• Manufacturer: SIEMENS
• Series: SIRIUS
• Part Number: 3RH1122-1BB40
• Auxiliary Switch Part Number: 3RH1911-1FA22
• Product Type: Power contactor with auxiliary switch
• Connection Type: Screw terminals
• Mounting Type: DIN rail / panel mounting
• Application: Industrial control and auxiliary switching
• Industrial Grade: Yes
• Compact modular construction
• High operational reliability

Advantages

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