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MT5-91-100 IMO Marker 5 x 5 mm White, Printed 91-100
IMO MT5-91-100 thermal overload relay with an adjustable 91-100 A current range for protecting three-phase AC motors against overload and phase-failure conditions.
£0.0276
Why Choose the IMO MT5-91-100 Thermal Overload Relay?
The IMO MT5-91-100 is a heavy-duty thermal overload relay designed to provide dependable protection for three-phase electric motors operating in demanding industrial applications. It protects motors against prolonged overload conditions and phase-loss faults, helping prevent overheating, reduce downtime and extend equipment service life.
With an adjustable current range of 91–100 A, the MT5-91-100 enables precise motor protection by allowing the overload setting to be matched to the motor's full-load current. This makes it suitable for larger industrial motors used in manufacturing, material handling and process control equipment.
Designed for direct installation with compatible IMO contactors, the MT5-91-100 combines compact construction, reliable operation and selectable manual or automatic reset functionality, making it ideal for motor starter assemblies, electrical control panels and motor control centres.
Key Advantages
- Reliable thermal overload protection for three-phase motors.
- Adjustable 91–100 A current range for accurate motor protection.
- Helps protect motors against overloads and phase-failure conditions.
- Designed for use with compatible IMO contactors.
- Manual and automatic reset options provide operational flexibility.
- Compact design for industrial motor starter assemblies.
Key Features
- IMO MT5 thermal overload relay series.
- 91–100 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 MT5-91-100 continuously monitors motor current and disconnects the control circuit when overload conditions exceed safe operating limits. Its thermal operating principle closely follows motor heating characteristics, providing dependable protection while allowing normal starting currents.
By accurately matching the overload setting to the motor's rated current, engineers can improve system reliability, minimise nuisance trips and extend the operational life of valuable industrial equipment.
Typical Applications
- Industrial pumps and compressors.
- Heavy-duty conveyor systems.
- Manufacturing and processing machinery.
- Material handling equipment.
- HVAC and ventilation systems.
- Motor control centres and OEM control panels.
Technical Specifications
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| Colour | White | |
|---|---|---|
| Legend / Character | 91-100 | |
| Product Series | IMO MT | |
| Phase | Three Phase | |
| Series | MT5 | |
| Product type | Thermal overload relay | |
| Current adjustment range | 91–100 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 MT5-91-100 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 MT5-91-100 support?
The relay features an adjustable overload setting from 91 to 100 A.
Does the relay protect against phase failure?
Yes. The MT5-91-100 is designed to detect overload and phase-loss conditions, helping protect connected motors from damage.
Can the overload relay be reset after tripping?
Yes. The relay supports both manual and automatic reset operation depending on the application requirements.
Where is the MT5-91-100 typically installed?
It is normally mounted directly to a compatible IMO contactor within an electrical control panel or motor starter assembly.
Trusted Motor Protection
IMO thermal overload relays are trusted by panel builders, OEMs and industrial engineers to provide dependable motor protection across demanding industrial applications.
