The Siemens 3RV6901-1E Auxiliary Switch is an accessory designed to expand the functionality of Siemens motor protection circuit breakers. It features 1 Normally Open (1NO) and 1 Normally Closed (1NC) contact, enabling additional signaling and control functions within electrical systems.

This auxiliary switch is engineered for seamless integration with compatible Siemens circuit breakers, providing reliable switching performance and easy installation. It allows users to monitor breaker status or integrate additional control logic into automation systems.