We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
ABB tf65-40 thermal overload relay 30a - 40a
MPN: 1SAZ811201R1003
Alt. SKU: TF65-40
Special Price
£91.07
£75.89
Regular Price
£140.11
Why Choose the ABB TF65-40 Thermal Overload Relay?
The ABB TF65-40 Thermal Overload Relay with product code 1SAZ811201R1003 is a high-performance motor protection relay designed to provide reliable overload and phase failure protection for industrial three-phase motors. As part of the advanced ABB TF65 thermal overload relay series, this electromechanical protection device is engineered for direct mounting onto ABB AF series contactors in industrial motor starter assemblies.
The TF65-40 delivers fast and dependable overload protection while helping improve operational safety and reduce unplanned downtime. Integrated temperature compensation, selectable manual or automatic reset, trip indication, STOP functionality and built-in auxiliary contacts simplify diagnostics, installation and maintenance within industrial control systems.
With an adjustable current range of 30 to 40 A, robust construction and direct mounting capability, the ABB TF65-40 is ideal for protecting industrial motors used in compressors, pumps, conveyors, ventilation systems, material handling equipment and OEM automation machinery.
Key Advantages
- Reliable thermal overload protection for industrial motors.
- Adjustable current range from 30 to 40 A.
- Integrated phase failure sensitivity for enhanced motor protection.
- Compact design for direct mounting onto ABB AF contactors.
- Trip class 10 protection for standard motor applications.
- Selectable manual or automatic reset functionality.
- Integrated STOP function and visual trip indication.
Key Features
- ABB TF65 thermal overload relay series.
- 30 to 40 A adjustable overload setting.
- Trip class 10 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 function.
- Compact IP20 enclosure for industrial control panels.
- Suitable for direct connection to ABB AF40 to AF65 contactors.
Technical Specifications
- Manufacturer: ABB
- Series: TF65 Thermal Overload Relays
- Model: TF65-40
- Product code: 1SAZ811201R1003
- Product type: Thermal overload relay
- Current adjustment range: 30 to 40 A
- Rated operational current: 40 A
- Trip class: Class 10
- Number of poles: 3
- 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 AF40, AF52, AF65
- Terminal type: Screw terminals
- Dimensions (H × W × D): approx. 101.4 × 54.9 × 106.9 mm
- Weight: approx. 0.372 kg
- Operating temperature: approx. -25 °C to +60 °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 TF65 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.
Frequently Asked Questions
What is the ABB TF65-40 used for?
The ABB TF65-40 is used to protect three-phase motors against overload conditions and phase failure in industrial motor control systems.
What current range does this overload relay support?
The relay supports an adjustable overload current range from 30 to 40 A.
Does the relay support manual and automatic reset?
Yes. The ABB TF65-40 supports both manual reset and automatic reset operation.
What auxiliary contacts are included?
The relay includes integrated auxiliary contacts with 1 normally open (NO) and 1 normally closed (NC) contact.
Where is the ABB TF65-40 typically installed?
The relay is commonly mounted directly onto ABB AF series contactors inside industrial motor starter assemblies and automation 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.
| Manufacturer Part Number | 1SAZ811201R1003 |
|---|---|
| Amp Range | 30A - 40A |
| HS Code | 85364900 |
| Country of Manufacture | China |
| Manufacturer | ABB |
| Alternative Product SKU | TF65-40 |
| Barcode | 4013614482939 |
Write Your Own Review
Motor protection for overload and phase failure
Thermal overload relays are economic electromechanical protection devices for the main circuit. They offer reliable protection for motors in the event of overload or phase failure. The thermal overload relay can make up a compact starting solution together with contactors.
Main Benefits:
- Reliable protection for motors
- Easy to create starters
- Optimized match to ABB contactors
- Single mounting kits and wire reset for
remote control available for specific applications
Main Features:
- Adjustable current setting ranges
- Overload protection with phase loss sensitivity
- Temperature compensation up to +60°C
- Automatic or manual reset, sealable
- Stop and test function
