1SAZ311201R2003

ABB 1SAZ311201R2003 TA42DU-42M Thermal Overload Relay is a three-pole electromechanical motor-protection device designed to provide reliable protection for motors against overload and phase-failure conditions. Its adjustable current setting range of 29 A to 42 A allows the protection level to be matched to the motor’s rated full-load current. The device uses Trip Class 10A, making it suitable for standard motor-starting applications. The TA42DU-42M is designed for direct mounting on compatible ABB block contactors, forming a compact motor starter assembly. ABB specifies features including temperature compensation, trip-free mechanism, STOP and TEST functions, trip indication, and selectable automatic or manual reset. It incorporates one normally closed trip contact (1NC) and one normally open signal contact (1NO) for contactor control, alarm indication and PLC feedback.