FH31 – Cutler-Hammer / Westinghouse Nema Starter Overload Relay Heater
Cutler Hammer Thermal and fast trip heater element is compatible with type A and B overload relays as well as sizes 5 starters. It has a current rating of 3.74 – 4.07 Amps for block type overload sing three heaters 4.32 – 4.71 Amps for single-pole type overload non-compensated open starters 3.48 – 3.79 Amps for block type overload using three heaters and 4.23 – 4.61 Amps single-pole type overload non-compensating enclosed starters.