ABB ta200du-135 thermal overload relay 100a - 135a

Why Choose the ABB TA200DU-135 Thermal Overload Relay?

The ABB TA200DU-135 thermal overload relay is a dependable motor protection device designed to protect industrial motors and control systems against overload conditions and phase failure. Identified by part number 1SAZ421201R1003, this overload relay forms part of the proven ABB TA200DU series, widely used in industrial automation and motor starter assemblies.

Engineered for demanding industrial applications, the TA200DU-135 provides an adjustable current range of 100 to 135 A, making it suitable for high-power motors and heavy-duty equipment. The relay combines reliable thermal tripping technology with compact direct mounting onto compatible ABB block contactors, helping reduce panel space and simplify installation.

With integrated trip class 10A protection, temperature compensation, selectable manual or automatic reset modes, and built-in STOP and TEST functionality, the TA200DU-135 delivers safe and efficient motor protection in industrial environments. Its auxiliary signalling contacts also allow easy integration into automation and monitoring systems.

Key Advantages

• Reliable thermal overload protection for industrial motors.
• 100–135 A adjustable current range for high-power motor applications.
• Protection against overload and phase failure.
• Trip class 10A for standard motor starting protection.
• Compact direct mounting onto ABB block contactors.
• Manual or automatic reset selectable.
• Integrated STOP and TEST functions for diagnostics and maintenance.

Key Features

• ABB TA200DU thermal overload relay series.
• 100–135 A adjustable setting range.
• 3-pole thermal overload relay.
• Trip class 10A motor protection.
• Integrated 1 NC trip contact.
• Integrated 1 NO signalling contact.
• Automatic or manual reset functionality.
• Temperature compensated design.
• Trip indication and trip-free mechanism.
• Direct connection to ABB contactors.

Technical Specifications

• Manufacturer: ABB
• Series: TA200DU
• Model: TA200DU-135
• Part number: 1SAZ421201R1003
• Product type: Thermal overload relay
• Current setting range: 100–135 A
• Rated operational current: 135 A
• Trip class: 10A
• Rated operational voltage: Up to 690 V AC
• Rated insulation voltage: 690 V
• Number of poles: 3P
• Auxiliary contacts: 1 NC + 1 NO
• Frequency: 50 / 60 Hz
• Protection rating: IP20 housing
• Mounting type: Direct mounting to contactor
• Dimensions (H × W × D): approx. 151 × 104 × 126 mm
• Weight: approx. 0.76 kg

Reliable Protection for Industrial Motor Circuits

Thermal overload relays monitor motor current and disconnect the motor circuit when excessive current or phase imbalance is detected. This protects motors from overheating, insulation damage and premature failure while improving operational safety and reducing maintenance costs.

The ABB TA200DU series is widely used in industrial motor starters, machinery control systems and automation panels where dependable motor protection is essential. Its compact design and direct contactor mounting make it ideal for OEM and industrial control applications.

Typical Applications

• Industrial motor starters and MCC systems.
• Heavy-duty pumps and compressors.
• Conveyor and material handling systems.
• Industrial fans and ventilation equipment.
• Manufacturing and process machinery.
• OEM automation and machine building applications.

Trusted by Industrial Automation Professionals

ABB thermal overload relays are widely trusted by industrial engineers, panel builders and OEM manufacturers for dependable motor protection, operational safety and long-term reliability in demanding automation environments.