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.
£0.04
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.
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.
| 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 |
It provides thermal overload protection for three-phase electric motors used in industrial motor-control and automation systems.
The relay features an adjustable overload setting from 71 to 80 A.
Yes. The MT5-71-80 is designed to help detect overload and phase-loss conditions, providing additional protection for connected motors.
Yes. The relay supports both manual and automatic reset modes depending on the application requirements.
It is normally mounted directly onto a compatible IMO contactor within an electrical control panel or motor starter assembly.
IMO thermal overload relays are trusted by machine builders, panel manufacturers and industrial engineers to provide dependable motor protection for demanding industrial applications.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...