1SDA066316R1

The ABB 1SDA066316R1 is a Shunt Opening Release (SOR) accessory engineered for the ABB SACE Tmax XT series of Molded Case Circuit Breakers (MCCBs), spanning frame sizes XT1, XT2, XT3, and XT4. This unit allows the circuit breaker to trigger an open command remotely when energized by a mid-range control voltage of 110V to 127V AC or 110V to 125V DC. It is widely deployed across industrial switchgear, power control center (PCC) panels, and automated safety interlock configurations to ensure reliable remote tripping capability.