The Eaton Cutler-Hammer H2104B-3 Thermal Overload Relay with heater pack is a protective device for electrical motors, designed to trip when overheating is detected. Identified by part number H2104B-3, this unit belongs to Eaton’s Cutler-Hammer lineup and includes a heater pack as part of its assembly. Use cases for this relay include motor protection in electrical panels and control cabinets where precise thermal protection and reliable tripping are required.
