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ABB tf140du-110 thermal overload relay 80a – 110a
ABB TF140DU-110 thermal overload relay with adjustable current range from 80 to 110 A, designed for industrial motor protection and automation systems.
£173.17
Why Choose the ABB TF140DU-110 Thermal Overload Relay?
The ABB TF140DU-110 Thermal Overload Relay (1SAZ431201R1002) is a heavy-duty electromechanical motor protection relay designed to provide reliable overload and phase failure protection for larger three-phase motors in demanding industrial applications. As part of the proven ABB TF140DU thermal overload relay series, it is engineered for direct mounting onto compatible ABB AF116 and AF140 contactors, making it an ideal solution for industrial motor starters, machinery and control panels.
Designed to maximise motor reliability while reducing costly downtime, the TF140DU-110 incorporates temperature compensation, phase loss sensitivity and a Trip Class 10A characteristic for dependable overload protection. Integrated auxiliary contacts, selectable manual or automatic reset and built-in STOP and TEST functions simplify commissioning and maintenance while ensuring safe operation in demanding industrial environments.
With an adjustable current setting range of 80 to 110 A, the TF140DU-110 is ideal for protecting larger industrial motors used in conveyors, compressors, pumps, fans and heavy manufacturing equipment. Its robust construction ensures dependable long-term performance in continuous industrial service.
Key Advantages
- Reliable thermal overload and phase failure protection for three-phase motors.
- 80 to 110 A adjustable current range for flexible motor protection.
- Trip Class 10A overload protection.
- Integrated 1 NO and 1 NC auxiliary contacts.
- Selectable manual or automatic reset.
- Direct mounting onto compatible ABB AF116 and AF140 contactors.
- Temperature compensated for improved protection accuracy.
- Built-in STOP and TEST functions with clear trip indication.
Key Features
- ABB TF140DU thermal overload relay series.
- 80 to 110 A adjustable overload setting.
- Trip Class 10A.
- Protection against overload and phase failure.
- Integrated 1 normally open and 1 normally closed auxiliary contact.
- Manual or automatic reset selection.
- Temperature compensated operation.
- Trip-free mechanism with STOP and TEST functions.
- Three-pole motor protection.
- Heavy-duty industrial construction.
Reliable Motor Protection for Industrial Applications
Thermal overload relays continuously monitor motor current and disconnect the motor whenever prolonged overload conditions or phase failure occur. This protects valuable equipment from overheating, extends motor service life and helps reduce costly downtime in industrial installations.
The ABB TF140DU series is trusted by OEMs, panel builders and maintenance engineers for dependable motor protection, straightforward installation and seamless compatibility with ABB AF contactors. Its rugged construction ensures long service life in demanding industrial environments.
Typical Applications
- Industrial motor starters.
- Heavy-duty conveyor systems.
- Pumps and water treatment equipment.
- Compressors.
- Industrial fans and ventilation systems.
- Manufacturing and process machinery.
- OEM machinery.
- Industrial control panels.
Technical Specifications
Tick the specs you need, then view products that match.
| Compatible With | AF116–AF146 | |
|---|---|---|
| Current | 110 A | |
| Mounting Type | Direct mount on contactor | |
| Current Range | 80–110 A | |
| Trip Class | Class 10A | |
| Reset Type | Manual / Automatic | |
| Device Type | Thermal Overload Relay | |
| Phase | Three Phase | |
| IP Rating | IP20 | |
| Poles | 3-pole | |
| Current adjustment range | 80 to 110 A | |
| Rated operational current | 110 A | |
| Series | TF140DU Thermal Overload Relays | |
| Product code | 1SAZ431201R1002 | |
| Product type | Thermal overload relay | |
| 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 |
Frequently Asked Questions
What is the ABB TF140DU-110 used for?
The TF140DU-110 protects three-phase motors against overload conditions and phase failure in industrial motor control applications.
What current range does this overload relay support?
The relay provides an adjustable overload current setting from 80 to 110 A.
Can the relay be manually reset?
Yes. The TF140DU-110 supports both manual and automatic reset to suit different installation requirements.
Which contactors is this relay compatible with?
It is designed for direct mounting onto compatible ABB AF116 and AF140 contactors.
What protection does the relay provide?
It provides reliable thermal overload and phase failure protection for three-phase industrial motors while helping extend motor service life.
Trusted by Industrial Control Professionals
ABB TF140DU thermal overload relays are trusted worldwide by machine builders, electrical contractors and maintenance engineers for dependable motor protection, long service life and seamless integration into industrial motor starter assemblies.
