The MCCB Auxiliary Contact is an essential accessory designed for Molded Case Circuit Breakers (MCCBs) to provide remote indication of the breaker's operating status. It changes state automatically whenever the MCCB is switched ON or OFF, enabling reliable signaling, monitoring, and integration with electrical control, automation, and building management systems. SONET ENGINEERING supplies premium-quality MCCB Auxiliary Contacts that are manufactured to deliver accurate switching, dependable performance, and long service life. Designed for seamless integration with a wide range of MCCBs, these auxiliary contacts enhance system monitoring, simplify fault diagnostics, and improve operational efficiency in industrial and commercial electrical installations.