Industrial UKH-220 180-240 Thermal Overload Relay

The Industrial UKH-220 180–240A thermal overload relay is a three‑phase, bimetallic protection device designed for industrial motor protection in motor starters, MCC panels, and contactor assemblies. It provides adjustable overload protection across 180–240 A and includes 1 normally open and 1 normally closed auxiliary contact for signaling, with manual and automatic reset options selectable to fit maintenance workflows. This direct‑mount relay relies on a bimetal thermal sensing element to deliver precise trip response, safeguarding motors from overheating and current overload. Common applications include heavy‑duty motors in compressors, conveyors, pumps, and other manufacturing equipment within industrial automation systems, especially when paired with contactors in motor control centers to ensure safe, continuous operation. Common replacements include ABB TA200DU-200, Siemens 3RU2146-4MB0, and Schneider Electric LRD340.