ABB TA200DU135 Thermal Overload Relay TA200DU135

The ABB TA200DU-135 thermal overload relay is a three-pole, electromechanical protection device for the main circuit in ABB motor-control assemblies. It covers a continuous current setting range of 100 to 135 A and uses a bi-metallic trip element with a trip class of 10 to provide reliable thermal protection for three-phase loads. Catalog number 1SAZ421201R1003 corresponds to the TA200DU-135 model in ABB’s TA200 series and the relay is designed for use with ABB contactors in IEC motor starters to guard motors against overload conditions. Described by ABB as an economical electromechanical protection device for the main circuit, the TA200DU-135 delivers straightforward, rugged protection suitable for general industrial motors where dependable overload protection is required. Built to integrate with ABB’s motor-control platforms, it offers consistent trip behavior within the TA200 family and serves as a compact, purpose-built protection solution for main-circuit protection in three-phase systems.