Description

The Siemens side-mounted auxiliary switch (typically categorized under part number 3RV2901-1A) is a modular extension block engineered for the SIRIUS 3RV2 series of motor starter protectors and circuit breakers. It is designed to provide reliable status feedback by expanding the base circuit breaker with additional signaling and control contacts.

Key Technical Specifications:

Contact Configuration: 1 NO (Normally Open) + 1 NC (Normally Closed), making it suitable for simultaneous signaling and control tasks.

Mounting Style: Side-mountable. It attaches directly to the left side of the matching 3RV2 circuit breaker, maintaining a compact footprint within the control panel.

Connection Technology: Standard screw terminals for secure, service-friendly wiring.

Compatibility: Fully integrated into the Siemens SIRIUS modular system, specifically fitting 3RV2 frame sizes S00, S0, S2, and S3. Electrical Ratings: Typically rated for an operational current of up to 10 A and a rated voltage of up to 690 V AC.