1SDA104926R1

The ABB 1SDA104926R1 is a Shunt Opening Release (YO) accessory engineered for the ABB SACE Tmax XT series of Molded Case Circuit Breakers (MCCBs), specifically designed for frames XT5 and XT6. This electrical accessory allows the circuit breaker to trigger an open command remotely when energized with a mid-range control voltage of 110V to 240V AC or 110V to 250V DC. Built for permanent service operations, it is essential for automated safety shutdowns, emergency tripping loops, and reliable power distribution control panels.