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  • ABB TA200DU110 Thermal Overload Relay — Product Specification

    1. Product Overview

    The ABB TA200DU110 thermal overload relay is designed for the protection of three-phase AC induction motors. Using a bimetal-based thermal sensing mechanism, it provides reliable overload, phase-loss, and long-time stall protection. It is suitable for frequent-start and long-running motor applications and can be directly mounted with ABB AF series contactors.

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    2. Technical Specifications

    • Current Setting Range: 90–110 A

    • Rated Insulation Voltage (Ui): 690 V AC

    • Rated Operational Voltage (Ue): up to 690 V AC

    • Trip Class: Class 10 / Class 20

    • Auxiliary Contacts: 1 NO + 1 NC

    • Trip Indicator: Yes

    • Reset Mode: Manual or Automatic

    • Phase Failure Protection: Supported

    • Test Function: Equipped with test button

    • Mounting Method: Direct mounting to AF series contactors

    • Frequency: 50/60 Hz

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    3. Advantages and Features

    • Accurate thermal protection with highly sensitive bimetal elements

    • Phase-loss and stall protection to prevent motor damage

    • Wide adjustment range (90–110 A) for flexible adaptation

    • Easy installation with ABB AF contactors

    • High reliability, strong mechanical design, suitable for harsh environments

    • Convenient operation with manual/automatic reset and test button

    • Clear status indication via trip indicator window

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    4. Application Areas

    • Pump systems (water pumps, sewage pumps, chemical pumps)

    • Industrial fans and ventilation systems

    • Air compressors and refrigeration compressors

    • Conveying equipment (belt conveyors, elevators)

    • HVAC equipment

    • Machine tools and industrial control panels

    • General industrial automation and power systems

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    5. Precautions

    • Ensure the motor’s rated current falls within 90–110 A.

    • Avoid extreme ambient temperature that may affect tripping accuracy.

    • Verify correct wiring of auxiliary and main circuit connections.

    • Select proper trip class according to load and starting frequency.

    • Avoid exposure to excessive vibration or humidity.

    • Disconnect power before maintenance or testing.

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