3VA9978-0AA13 SIEMENS

The 3VA9978-0AA13 auxiliary switch from Siemens is a crucial component designed to enhance the functionality and monitoring capabilities of 3VA4, 3VA5, and 3VA6 molded case circuit breakers (MCCBs). Featuring changeover contacts, this auxiliary switch provides reliable signaling for various operational states of the circuit breaker. Its HQ type (7mm) ensures compatibility and ease of integration within the MCCB assembly. This electronic-compatible accessory allows for remote indication of the circuit breaker's status, such as whether it is open, closed, or tripped. By providing this real-time feedback, the auxiliary switch enables proactive maintenance and troubleshooting, minimizing downtime and improving overall system reliability. The 3VA9978-0AA13 is essential for applications requiring remote monitoring and control of circuit breaker operations. Its compact design and robust construction ensure long-lasting performance in demanding industrial environments. This auxiliary switch seamlessly integrates into existing systems, offering a cost-effective solution for enhancing circuit breaker functionality. With its precise signaling capabilities, the 3VA9978-0AA13 contributes to a safer and more efficient electrical distribution system.