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TA25DU3.1M 2.2-3.1A

The ABB TA25DU3.1M is a 3‑pole thermal overload relay designed to protect AC motors and motor circuits from overload and phase failure. It is an electromechanical protective device that heats internal bimetal elements proportionally to motor current and trips when excessive current (overload) is sustained. It is intended for use with compatible contactors to form a complete motor starter assembly.

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Key Specifications General Product Type: Thermal overload relay Model: TA25DU3.1M Poles: 3 Overload Setting Range: 2.2–3.1 A Trip Class: 10A Reset: Manual or automatic selectable Auxiliary Contacts: 1 NO + 1 NC Electrical Ratings Rated Operational Voltage (Main): up to 690 V AC Rated Insulation Voltage (Ui): 690 V Rated Frequency: 50/60 Hz Auxiliary Contact Ratings: Suitable for typical control circuits Mechanical / Installation Mounting: Direct attachment to compatible ABB contactors Terminals: Screw type Degree of Protection: IP20 (housing), IP10 (main terminals) Dimensions: ~80 × 44 × 94 mm (H×W×D) Operating Temperature: –25 °C to +55 °C Standards & Compliance IEC/EN 60947‑4‑1 UL and CSA recognized