Westinghouse FH39G25 Overload Relay Heater Element

The Westinghouse FH39G25 Overload Relay Heater Element is a thermal overload heater element used to protect electric motors in industrial control systems. It is commonly installed in Westinghouse and Cutler Hammer motor starters and overload relay assemblies to provide motor overload protection for replacement, retrofit, and maintenance of motor control equipment. The configuration code G25 identifies a specific heater calibration within the FH-series; the part number FH39 indicates the FH39 heater element designed for 50/60 Hz operation in motor starters, overload relays, and MCCs. Typical applications include conveyors, HVAC equipment, pumps, compressors, and other motor-driven automation where dependable overload protection is required. Common replacements include Eaton FH39, Cutler Hammer FH39, and a Siemens overload heater equivalent.