IMO MT5-61-70 thermal overload relay with an adjustable 61-70 A current range, designed to protect three-phase industrial motors against sustained overload conditions and phase failure.
£0.04
The IMO MT5-61-70 is a dependable thermal overload relay designed to protect three-phase electric motors against sustained overload conditions and phase-related faults. Developed for industrial motor-control applications, it helps prevent excessive motor heating, insulation damage and premature equipment failure.
With an adjustable current range of 61–70 A, the MT5-61-70 allows the protection setting to be matched closely to the motor’s rated full-load current. This adjustable configuration supports accurate overload protection across a range of industrial motors, machinery and electrical control systems.
The relay is designed for use alongside a compatible IMO contactor within a motor starter assembly. Its compact construction, straightforward adjustment and manual or automatic reset functionality make it suitable for installation in control panels, motor-control centres and machinery cabinets.
Thermal overload relays monitor the current drawn by an electric motor and disconnect the control circuit when an overload persists beyond a safe period. This helps protect motor windings from damaging temperature rises while allowing temporary starting currents to pass without unnecessary tripping.
The adjustable setting of the IMO MT5-61-70 enables commissioning engineers to coordinate the relay with the motor nameplate current. When combined with a correctly selected contactor and short-circuit protection device, it forms an effective motor starter and protection system.
| Phase | Three Phase |
|---|---|
| Series | MT5 |
| Product type | Thermal overload relay |
| Current adjustment range | 61–70 A |
| Protected equipment | Three-phase AC motors |
| Number of poles | 3 |
| Reset operation | Manual / automatic selectable |
| Trip indication | Integrated mechanical indication |
| Protection function | Motor overload and phase-failure protection |
| Auxiliary contacts | Trip signalling and control contacts |
| Installation type | Contactor-mounted motor starter assembly |
| Application environment | Industrial control panels and machinery |
| HS Code | 8536901000 |
| Country of Manufacture | Türkiye |
The relay is used to protect three-phase electric motors against sustained overload conditions and phase-related faults in industrial motor-control systems.
The overload setting can be adjusted between 61 and 70 A to suit the rated current of the connected motor.
No. A thermal overload relay protects the motor against sustained overloads, while a correctly rated fuse or circuit breaker is still required for short-circuit protection.
The MT5-61-70 provides selectable manual or automatic reset operation, allowing it to be configured for the requirements of the motor-control system.
It is typically installed with a compatible contactor inside an electrical control panel, motor-control centre or industrial machinery cabinet.
IMO motor-control components are used by panel builders, machine manufacturers and electrical engineers to provide dependable switching, control and protection for industrial motor 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...