ABB TA25DU1.8 Thermal Overload Relay provides 3‑phase motor protection by interrupting current when the motor current exceeds the rated range of 1.3–1.8 A, in circuits up to 690 VAC. It carries a trip class of 10, a compact electromechanical device designed to be used with ABB low‑voltage contactors in motor starter assemblies. As part of the TA25DU family, the 1.8 version is compatible with ABB motor control configurations and is documented for use with ABB contactors in 3‑pole motor protection schemes. Typical applications include protection for pumps, fans, conveyors, and other industrial motors in automation settings.
