ABB tf140du-110 thermal overload relay 80a - 110a

Why Choose the ABB TF140DU-130 Thermal Overload Relay?

The ABB TF140DU-130 Thermal Overload Relay with product code 1SAZ431201R1002 is a heavy-duty motor protection relay designed to provide reliable overload and phase failure protection for industrial three-phase motors. As part of the advanced ABB TF140DU thermal overload relay series, this electromechanical protection device is engineered for direct mounting onto ABB AF series contactors in demanding industrial motor starter assemblies.

The TF140DU-130 delivers dependable overload protection while helping improve operational safety and reduce costly downtime. Integrated temperature compensation, selectable manual or automatic reset, trip indication, STOP and TEST functionality and built-in auxiliary contacts simplify diagnostics, installation and maintenance within industrial control systems.

With an adjustable current range of 90 to 130 A, robust industrial construction and direct mounting capability, the ABB TF140DU-130 is ideal for protecting industrial motors used in compressors, pumps, conveyors, fans, ventilation systems, processing machinery and OEM automation equipment.

Key Advantages

• Reliable thermal overload protection for industrial motors.
• Adjustable current range from 90 to 130 A.
• Integrated phase failure sensitivity for enhanced motor protection.
• Heavy-duty design for direct mounting onto ABB AF contactors.
• Trip class 10A protection for standard motor applications.
• Selectable manual or automatic reset functionality.
• Integrated STOP and TEST function with visual trip indication.

Key Features

• ABB TF140DU thermal overload relay series.
• 90 to 130 A adjustable overload setting.
• Trip class 10A overload protection.
• 3-pole motor protection relay.
• 1 NO + 1 NC integrated auxiliary contacts.
• Temperature-compensated operation.
• Manual or automatic reset selection.
• Trip-free mechanism with STOP and TEST function.
• Heavy-duty IP20 enclosure for industrial control panels.
• Suitable for direct connection to ABB AF116 and AF140 contactors.

Technical Specifications

• Manufacturer: ABB
• Series: TF140DU Thermal Overload Relays
• Model: TF140DU-130
• Product code: 1SAZ431201R1002
• Product type: Thermal overload relay
• Current adjustment range: 90 to 130 A
• Rated operational current: 130 A
• Trip class: Class 10A
• Number of poles: 3P
• Auxiliary contacts: 1 NO + 1 NC
• Rated insulation voltage: 690 V AC
• Rated operational voltage: Main circuit 690 V AC / 440 V DC
• Rated impulse withstand voltage: Auxiliary circuit 6 kV, main circuit 8 kV
• Protection rating: Housing IP20, terminals IP10
• Reset method: Automatic or manual
• Mounting type: Direct attachment to contactor
• Suitable contactors: ABB AF116, AF140
• Terminal type: Screw terminals
• Dimensions (H × W × D): approx. 140 × 89 × 126 mm
• Weight: approx. 0.82 kg
• Operating temperature: approx. -25 °C to +55 °C
• Standards: IEC/EN 60947-1, IEC/EN 60947-4-1, UL 60947-4-1

Reliable Motor Protection for Industrial Automation

Thermal overload relays are critical components in industrial motor control systems, helping protect motors against overheating caused by excessive current draw, stalled rotor conditions or phase imbalance. By disconnecting the motor during overload events, overload relays reduce maintenance costs and improve operational reliability.

The ABB TF140DU series is specifically designed for machine builders and industrial automation engineers requiring dependable motor protection, compact installation and seamless integration with ABB contactor systems. Its direct mounting capability and integrated auxiliary contacts simplify wiring and panel assembly in demanding industrial applications.

Typical Applications

• Industrial motor starter assemblies.
• HVAC and ventilation systems.
• Pumps and compressor protection.
• Conveyor and material handling equipment.
• Packaging and OEM machinery.
• Industrial automation control panels.

Trusted by Industrial Engineers Worldwide

ABB thermal overload relays are trusted worldwide for delivering dependable motor protection, long operational life and reliable integration into industrial automation systems.