Cutler-Hammer 10-4057 Thermal Overload Relay, also listed as Cutler Hammer 10-4057, is a protective relay used in electrical control systems. The 10-4057 model identifies this unit within the Cutler-Hammer/Cutler-Hammer family. Designed to respond to excessive thermal conditions in a circuit, it helps safeguard connected equipment by initiating protection in the control system when heat thresholds are reached.
