1SDA066317R1

The ABB 1SDA066317R1 is a Shunt Opening Release (SOR) accessory built for integration with the ABB SACE Tmax XT series of Molded Case Circuit Breakers (MCCBs), covering frame models XT1, XT2, XT3, and XT4. This electrical release unit enables the circuit breaker to trigger an open command remotely when supplied with a high-range control voltage of 220V to 240V AC or 220V to 250V DC. It is designed for industrial automation panels, power distribution systems, and safety interlock circuits requiring reliable remote tripping.