The Cutler-Hammer Eaton H2010B-3 Class 20 Heater Standard Trip is an overload protection component designed for compatible motor starters and contactors used in HVAC equipment. It works by sensing excessive motor current and initiating a trip when an overload condition persists, helping protect the motor from overheating and damage. This heater is suitable for air handlers, compressor... https://www.partshnc.com/h2010b-3-cutler-hammer-eaton-67511a-heater-3-pack