ABB TA75DU-32 Thermal Overload Relay 690V 22-32A

ABB TA75DU-32 is a three-pole thermal overload relay designed to protect motors in main circuits up to 690 V AC, with a setting range of 22.0–32.0 A and a fixed trip class of 10 A. The device uses a bi-metallic thermal element to trip on overload or phase failure and is designed for straightforward panel installation with screw terminals, making it easy to integrate with ABB contactors in motor-starting circuits. Electrical ratings include a main circuit up to 690 V AC, auxiliary circuit ratings commonly listed as up to 440 V DC / 500 V AC depending on variant, a rated frequency of 50/60 Hz for the main circuit, and an impulse withstand of 6 kV. In practice, the TA75DU-32 enables compact motor protection solutions in pumps, conveyors, fans, compressors, and other three-phase equipment across manufacturing and process environments when paired with compatible ABB control gear.