3VA9157-0FK21 SIEMENS

The 3VA9157-0FK21 is a door-mounted rotary operator designed by Siemens, adhering to IEC standards and boasting an IP65 protection rating. This accessory is specifically engineered for use with 3VA1 100/160 circuit breakers, enhancing their operational capabilities. Its primary function is to provide a user-friendly interface for controlling the circuit breaker from outside the electrical panel. The IP65 rating ensures that the operator is protected against dust and water ingress, making it suitable for demanding industrial environments. A key feature of this rotary operator is its integrated door interlock mechanism, which enhances safety by preventing the panel door from being opened while the circuit breaker is in the 'ON' position. This interlock feature minimizes the risk of accidental contact with live components. The standard IEC compliance ensures that the operator meets international safety and performance standards. Installation is straightforward, and the robust design guarantees long-term reliability. This accessory is an essential component for ensuring safe and efficient operation of electrical systems utilizing 3VA1 circuit breakers.