3RH29112GA22

Overview: Siemens 3RH29112GA22 Auxiliary Contact Block

The Siemens 3RH29112GA22 is a front-mounted auxiliary contact block designed for SIRIUS contactors, size S00. It features 4 contacts configured as 2 normally open (NO) and 2 normally closed (NC) with spring-loaded terminals for secure wiring. This compact block measures 41.5 mm x 36 mm x 47.7 mm and is built to withstand operating temperatures from -25 to 60°C, making it reliable for industrial control applications requiring additional signaling and control functionality.

Key Features

• Contact Configuration: 2 NO + 2 NC contacts for flexible auxiliary signaling.
• Mounting: Snap-on front mounting for easy installation on SIRIUS contactors size S00.
• Connection Type: Spring-loaded terminals for fast and reliable wiring.
• Operating Temperature: Suitable for -25 to 60°C ensuring durability in many environments.
• Operating Voltage: Supports up to 690 V AC / 600 V DC.
• Mechanical Endurance: Up to 10 million mechanical operations.
• Electrical Endurance: Approximately 200,000 electrical switching cycles.
• Compliance: Meets international standards IEC 60947-5-1 and IEC 60947-4-1.

Technical Specs

Applications / Use Case

This auxiliary contact block is used to expand control and signaling functions in motor starters and contactor circuits, providing reliable feedback and status information in industrial automation systems.