ABB TA200DU-135 thermal overload relay

ABB TA200DU-135 Thermal Overload Relay – Product Information

1. Product Overview

The ABB TA200DU-135 thermal overload relay is a high-performance protection device designed for medium to large AC motors. It can be directly combined with ABB contactors such as A145, A185, A210, and A260 to form a complete motor control and protection system. Utilizing high-precision bimetal thermal sensing technology, it provides accurate protection against overload, phase failure, and stall conditions, effectively preventing motor damage due to overheating. With compact structure, wide adjustment range, and high reliability, it is ideal for industrial motor applications.

2. Technical Specifications

• Model: TA200DU-135

• Adjustable Current Range: 100 A – 135 A

• Compatible Contactors: A145, A185, A210, A260

• Number of Poles: 3 (three-phase protection)

• Rated Operational Voltage (Ue): 690 V AC, 50/60 Hz

• Rated Insulation Voltage (Ui): 1000 V AC

• Trip Class: Class 10A

• Auxiliary Contacts: 1 NO + 1 NC

• Reset Type: Manual / Automatic selectable

• Mounting Method: Direct mounting on contactor or standalone installation

• Operating Temperature: −20 ℃ to +60 ℃

• Phase Failure Protection: Available

• Mechanical Life: ≥ 1,000,000 operations

• Electrical Life: ≥ 100,000 operations

3. Features and Advantages

1. High Accuracy – Sensitive bimetal elements ensure precise and reliable overload tripping.

2. Wide Compatibility – Can be directly matched with multiple ABB contactor models.

3. Comprehensive Protection – Provides overload, phase failure, and stall protection.

4. Easy Adjustment – Adjustable dial for convenient setting according to motor current.

5. Durable Construction – High-strength insulated housing resistant to heat and vibration.

6. User-Friendly Design – Clear indication window and test button for easy maintenance.

7. Stable Performance – Complies with IEC 60947-4-1 standard for consistent operation.

4. Application Fields

• Industrial automation and process control

• Pump and fan systems

• Air compressors and conveyor machinery

• Building electrical and HVAC systems

• Water treatment and environmental protection systems

• Power distribution and energy management

• Mining, metallurgy, and chemical equipment

5. Precautions

1. Ensure the motor’s rated current matches the relay’s setting range before installation.

2. Tighten all wiring connections to prevent heat or false tripping.

3. Avoid using in humid, dusty, or corrosive environments.

4. Inspect the relay and contacts regularly to prevent oxidation or wear.

5. Adjust the current setting slightly lower for use in high-temperature environments.

6. Always disconnect the power supply before inspection, maintenance, or replacement.

The structure and details of the product：

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