3VA9988-0AA11 SIEMENS

The 3VA9988-0AA11 auxiliary switch is a crucial accessory designed to enhance the functionality of Siemens 3VA1 and 3VA20 up to 3VA25 molded case circuit breakers (MCCBs). This high-performance (HP) auxiliary switch features changeover contacts, providing versatile signaling capabilities for various applications. With a compact design of 14mm, it seamlessly integrates into the MCCB assembly without adding significant bulk. The auxiliary switch enables remote monitoring of the circuit breaker's status, indicating whether it is open, closed, or tripped. This information can be used for control, alarm, and automation purposes. Its reliable performance ensures accurate and timely signaling, contributing to the overall safety and efficiency of electrical systems. The 3VA9988-0AA11 auxiliary switch is easy to install and configure, making it a convenient solution for upgrading existing MCCB installations. By providing real-time status updates, it facilitates proactive maintenance and troubleshooting, minimizing downtime and maximizing operational uptime. This accessory is an essential component for comprehensive circuit protection and control.