✅ ABB SOR-C – Shunt Opening Release – Cabled – 220–240Vac / 220–250Vdc (Part No.: 1SDA066137R1) The ABB SOR-C (1SDA066137R1) is a factory-cabled shunt trip unit designed for remotely opening circuit breakers. Operating on both AC (220–240Vac) and DC (220–250Vdc), this device is used in emergency shutdown systems, interlocks, or automated protection circuits. Once powered, the device instantly triggers breaker tripping, ensuring fast disconnection of the load. Suitable for MCCBs and ACBs in control panels, substations, and safety systems. Technical Specifications: Part Number: 1SDA066137R1 Type: Shunt Opening Release (SOR-C) Voltage Range: 220–240Vac / 220–250Vdc Installation: Pre-cabled Function: Remote tripping of circuit breaker Compatibility: ABB MCCBs and ACBs Application: Emergency stop, interlocking, safety automation