ABB TA25DU-19 Thermal Overload Relay

ABB TA25DU-19 Thermal Overload Relay is an economical electromechanical protection device for the main circuit of motor control gear. In the TA25DU family, the TA25DU-19 protects operating currents from about 13.0 to 19.0 A using a thermal bi-metallic element that senses overheating and trips to prevent motor damage. The model is also offered as TA25DU-19M, sharing the same current range and protective behavior. It carries a trip class of 10A, providing precise protection for motors subject to overload in industrial settings. Designed for plug-in compatibility with ABB contactors, the relay is a compact, maintenance-friendly component that guards the main circuit against overload without complex electronics. Typical applications include safeguarding motors in machinery, pumps, fans, and conveyors in manufacturing environments where ABB low-voltage control gear is used, helping to limit insulation stress and electrical faults caused by overcurrent conditions.