TECO Electric & Machinery RHU-10 4A1 Overload Relay

TECO Electric & Machinery RHU-10 4A1 Overload Relay provides dependable thermal overload and phase-failure protection for three-phase motors in industrial control systems. Designed to pair with TECO CU-11, CU-18, CU-25, and CU-32R magnetic contactors, it offers adjustable overload protection at 4 A, phase-loss protection, automatic ambient temperature compensation, and a manual or automatic reset selectable for flexible operation. The relay includes 1 normally open and 1 normally closed auxiliary contact, a STOP/TEST button for quick verification, and IP20 finger-safe terminal protection. Mounting options include direct contactor mounting or an independent base, enabling integration into motor starters, pump control panels, conveyors, compressors, HVAC equipment, elevators, cranes, refrigeration equipment, and other industrial motor protection circuits. This RHU-10 4A1 is an A Type thermal overload relay bearing UL, CSA, TÜV, cRUus, and cULus certifications, aligning with common safety standards and facilitating maintenance by system integrators and maintenance teams for repair, retrofit, expansion, or replacement of motor protection systems. Common replacements include TECO RHU-10 4K1, RHU-10 4M1, and RHN-180 4A1.