ABB TA42DU-32M Three-Phase Thermal Overload Relay

ABB TA42DU-32M is a three-phase electromechanical thermal overload relay designed to mount directly to ABB contactors in motor starter circuits. It provides overload, phase loss, and phase imbalance protection for three-phase motors in industrial environments, with a current adjustment range of 22 to 32 A and a rated operational current of 32 A, a main circuit voltage rating up to 690 VAC, and an auxiliary circuit rating of 500 VAC / 440 VDC for its control connections; it includes 1 NC (95-96) and 1 NO (97-98) auxiliary contacts. Mounting is direct to compatible ABB contactors (A30, A40, AX32, AX40, AL30, AL40) or via a separate mounting kit, and it features a trip-free mechanism, test and STOP functions, selectable manual or automatic reset, temperature compensation, and trip indication, meeting IEC 60947-4-1, UL, CSA, and CE standards; dimensions are 54 mm W × 90 mm H × 111 mm D and weight about 0.335 kg.