Westinghouse 655D555G12 U Undervoltage Release

The Westinghouse 655D555G12 Undervoltage Release delivers 480V undervoltage monitoring and automatic breaker trip control for industrial power protection, providing a reliable control input for protective relays and circuit breakers. Designed for use with industrial circuit breakers, it is commonly installed in switchgear assemblies, power distribution equipment, industrial control panels, and electrical protection systems in manufacturing and utility facilities. Maintenance teams and electrical integrators rely on this release for breaker repair, retrofit projects, protection-system upgrades, and electrical safety maintenance within 480V control circuits. Key specifications include Manufacturer Westinghouse, MPN 655D555G12, Product Type Undervoltage Release, Voltage Rating 480V, Application Type Circuit Breaker Protection Systems, Function Undervoltage Monitoring and Breaker Trip Control, Installation Areas Switchgear and Power Distribution Equipment. Common replacements listed for compatibility are Eaton Undervoltage Release 655D555G12, Siemens Breaker Undervoltage Trip Module, and ABB SACE Undervoltage Release.