Westinghouse 966493-F Thermal Overload Relay Heater Element

The Westinghouse 966493-F Thermal Overload Relay Heater Element is a plug-in, replaceable heater element for Westinghouse BF16 (Type MW) overload relays, delivering current-sensitive motor protection by heating a bimetal trip mechanism when motor current exceeds the set threshold for a defined period.

Used in industrial motor control panels, motor starter assemblies, conveyor drives, pumps, and compressors, it supports precise motor overload protection within motor control centers (MCCs) and OEM equipment.

Key specifications: Manufacturer Westinghouse Electric; Model BF16; Type MW Thermal Overload Relay Heater Element; Part Number 966493-F; Function: current-sensitive thermal trip element for overload relays; Mounting Type: plug-in within overload relay assembly; Application Range: motor overload protection systems (current range depends on relay frame calibration).

Compatibility: Westinghouse BF series / Type MW overload relay frames; Protection Function: motor thermal overload protection (time-delay trip characteristic). Common replacements: Siemens 3RU Thermal Overload Heater Elements; Schneider LRD Thermal Overload Relay Heater Elements; ABB TA Series Overload Relay Heater Units.