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MT5-71-80 IMO Marker 5 x 5 mm White, Printed 71-80
IMO MT5-71-80 thermal overload relay with an adjustable 71-80 A current range, designed to protect three-phase AC motors against overload and phase-failure conditions.
£0.0276
Why Choose the IMO MT5-71-80 Thermal Overload Relay?
The IMO MT5-71-80 is a robust thermal overload relay designed to provide reliable protection for three-phase electric motors operating in demanding industrial environments. Engineered to detect sustained overloads and phase-loss conditions, it helps safeguard motors from overheating, reducing costly downtime and extending equipment service life.
With an adjustable current setting of 71–80 A, the MT5-71-80 can be accurately matched to the motor's full-load current, ensuring dependable overload protection across a wide range of industrial machinery and motor starter applications.
Designed for direct installation with compatible IMO contactors, this thermal overload relay offers dependable performance, easy adjustment and selectable manual or automatic reset functionality, making it ideal for electrical control panels, OEM machinery and motor control centres.
Key Advantages
- Reliable thermal overload protection for three-phase motors.
- Adjustable 71–80 A current range for precise motor protection.
- Helps protect motors against overloads and phase-failure conditions.
- Compact design integrates directly with compatible IMO contactors.
- Manual and automatic reset options for flexible operation.
- Suitable for demanding industrial motor-control applications.
Key Features
- IMO MT5 thermal overload relay series.
- 71–80 A adjustable overload setting.
- Three-pole thermal overload protection.
- Phase-failure sensitivity.
- Manual or automatic reset selection.
- Integrated mechanical trip indication.
- Auxiliary signalling contacts.
- Direct mounting to compatible IMO contactors.
Reliable Motor Protection for Industrial Applications
The IMO MT5-71-80 continuously monitors motor current and disconnects the control circuit when overload conditions persist beyond safe operating limits. This thermal protection helps prevent excessive motor temperatures while allowing normal motor starting currents without nuisance tripping.
Its adjustable overload range enables commissioning engineers to accurately match the relay to the motor's rated current, making it an ideal solution for industrial motor starters, machinery and automation systems.
Typical Applications
- Industrial pumps and compressors.
- Material handling and conveyor systems.
- Packaging and production machinery.
- Fans, blowers and HVAC equipment.
- Machine tools and manufacturing equipment.
- Motor control centres and OEM control panels.
Technical Specifications
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| Colour | White | |
|---|---|---|
| Legend / Character | 71-80 | |
| Product Series | IMO MT | |
| Phase | Three Phase | |
| Series | MT5 | |
| Product type | Thermal overload relay | |
| Current adjustment range | 71–80 A | |
| Protected equipment | Three-phase AC motors | |
| Number of poles | 3 | |
| Reset operation | Manual / automatic selectable | |
| Trip indication | Mechanical indicator | |
| Protection function | Motor overload and phase-failure protection | |
| Auxiliary contacts | Integrated signalling contacts | |
| Mounting type | Direct contactor mounting | |
| HS Code | 8536901000 | |
| Country of Manufacture | Türkiye |
Frequently Asked Questions
What is the IMO MT5-71-80 used for?
It provides thermal overload protection for three-phase electric motors used in industrial motor-control and automation systems.
What current range does the MT5-71-80 support?
The relay features an adjustable overload setting from 71 to 80 A.
Does the relay protect against phase failure?
Yes. The MT5-71-80 is designed to help detect overload and phase-loss conditions, providing additional protection for connected motors.
Can the overload relay be reset after a trip?
Yes. The relay supports both manual and automatic reset modes depending on the application requirements.
Where is the MT5-71-80 typically installed?
It is normally mounted directly onto a compatible IMO contactor within an electrical control panel or motor starter assembly.
Trusted Motor Protection
IMO thermal overload relays are trusted by machine builders, panel manufacturers and industrial engineers to provide dependable motor protection for demanding industrial applications.
