ABB T135 DU 65-90A Solid State Overload Relay

ABB T135 DU 65-90A Thermal Overload Relay protects three-phase motors by interrupting the control circuit when current exceeds the preset 65–90 A range, enabling a compact motor-protection block when paired with ABB contactors. The 65–90 A setting corresponds to nominal motor currents in that band, and the DU variant denotes a mounting/version compatible with ABB TA/A-Line overload-relay families. Designed for control panels, it works in tandem with ABB low-voltage contactors to deliver coordinated motor starting and overload protection in 3-phase systems such as conveyors, pumps, fans, and machine tools. This relay is part of ABB's protection family, which emphasizes matching with ABB contactors for reliable protection and simple, space-efficient installation in industrial motor circuits.