Why Choose the ABB TF96-51 Thermal Overload Relay?
The ABB TF96-51 Thermal Overload Relay (1SAZ911201R1001) is a dependable electromechanical motor protection relay designed to safeguard three-phase motors against overload conditions and phase failure. As part of the proven ABB TF96 thermal overload relay series, it is engineered for direct mounting onto compatible ABB AF80 and AF96 contactors, making it an ideal solution for industrial motor starters and control panels.
Designed to maximise motor reliability and minimise unplanned downtime, the TF96-51 incorporates temperature compensation, phase loss sensitivity and a Trip Class 10 characteristic for accurate overload protection. Integrated auxiliary contacts, selectable manual or automatic reset and a clear trip indication simplify maintenance while ensuring safe and reliable operation in demanding industrial environments.
With an adjustable current setting range of 40 to 51 A, the TF96-51 is ideal for protecting industrial motors used in conveyors, pumps, compressors, fans and manufacturing equipment. Its compact design enables straightforward installation directly beneath compatible ABB AF80 and AF96 contactors.
Key Advantages
- Reliable thermal overload and phase failure protection for industrial motors.
- 40 to 51 A adjustable current range for flexible motor protection.
- Trip Class 10 overload protection.
- Integrated 1 NO and 1 NC auxiliary contacts.
- Selectable manual or automatic reset.
- Direct mounting onto ABB AF80 and AF96 contactors.
- Temperature compensated for improved protection accuracy.
- Compact design for industrial motor starter assemblies.
Key Features
- ABB TF96 thermal overload relay series.
- 40 to 51 A adjustable overload setting.
- Trip Class 10.
- Protection against overload and phase failure.
- Integrated 1 normally open and 1 normally closed auxiliary contact.
- Manual or automatic reset selection.
- Trip-free mechanism with STOP and TEST functions.
- Visual trip indication.
- Screw terminal connections.
- Direct contactor mounting.
Reliable Motor Protection for Industrial Applications
Thermal overload relays protect electric motors by monitoring motor current and disconnecting the supply whenever prolonged overload conditions occur. This helps prevent overheating, extends motor service life and reduces costly downtime in industrial installations.
The ABB TF96 series is trusted by machine builders, panel manufacturers and maintenance engineers for its dependable protection, simple installation and seamless compatibility with ABB AF contactors. Integrated safety features and robust construction ensure reliable long-term performance in demanding industrial environments.
Typical Applications
- Industrial motor starters.
- Conveyors and material handling systems.
- Pumps and water treatment equipment.
- Compressors.
- Industrial fans and ventilation systems.
- Manufacturing machinery.
- OEM equipment.
- Industrial control panels.
