1SDA116459R1

1SDA116459R1 is an ABB YO (Shunt Opening Release for permanent service) accessory for SACE FORMULA DSP P3–P4 molded-case circuit breakers. It is designed to provide remote opening/tripping of the MCCB when the release is energized. The specified control-voltage range is 110–240 V AC / 110–250 V DC. It enables remote electrical opening of the circuit breaker and is intended for integration into electrical protection, distribution, automation, and control systems.