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TA25DU-8.5M

The ABB TA25DU-8.5M is an adjustable thermal overload relay designed to protect small three-phase motors against overload and phase failure. It features manual reset, ambient temperature compensation, and a compact design compatible with ABB contactors. The relay is suitable for motor starters, control panels, and light industrial motor protection applications.

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Technical Parameters Parameter Specification Product type Thermal overload relay Product series ABB TA series Compatible contactors ABB A / AF series contactors Current setting range 8.5 A Tripping class Class 10A Number of poles 3 Rated operational voltage (Ue) Up to 690 V AC Rated insulation voltage (Ui) 690 V AC Auxiliary contacts 1 NO + 1 NC (trip indication) Reset type Manual Phase failure sensitivity Yes Ambient temperature compensation Yes Mounting Direct mounting to contactor or panel mounting Protection degree IP20 Ambient operating temperature −25 °C to +55 °C Applicable standards IEC compliant Typical applications Small motor starters, control panels, industrial motor protection