ABB TA25DU-1,8 Thermal Overload Relay TA25 Series

ABB TA25DU-1.8 thermal overload relay is a three‑pole, bimetallic overload protection device in the TA25 series, designed to protect AC motors in low‑voltage control circuits. It features an adjustable current setting from 1.3 to 1.8 A and a trip class of 10A, enabling precise protection with predictable response to overloads. This economical electromechanical relay is intended for mounting with ABB contactors in motor starter assemblies and is commonly used to guard motors against overheating in industrial automation applications. For remote protection configurations, the DS25‑A coil allows remote electrical tripping of the TA25DU relay, expanding integration within protect‑and‑control schemes. The TA25DU‑1.8 variant is specified for a 1.3–1.8 A range and is described as a tripolar device within ABB’s TA25 overload relay family.