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imo mcor-4-90 thermal overload relay for mc90-mc115 contactors 60-90 amps
IMO MCOR-4-90 thermal overload relay with adjustable 60-90A protection range for industrial motor control and heavy-duty motor starter applications.
£134.90
Why Choose the IMO MCOR-4-90 Thermal Overload Relay?
The IMO MCOR-4-90 is a robust thermal overload relay developed to provide dependable motor protection in demanding industrial motor control systems. Engineered for use with larger IMO MC series contactors, this overload relay protects motors against overload currents, overheating and phase failure conditions that can lead to costly downtime or equipment damage.
Part of the proven IMO MCOR overload relay range, the MCOR-4-90 combines reliable thermal protection with flexible adjustment settings and straightforward installation. The relay is designed for industrial machinery, automation equipment and OEM control panels requiring high-current motor protection.
With an adjustable current setting range of 60 to 90 A, the IMO MCOR-4-90 is ideal for larger three-phase motors used in pumps, compressors, conveyors, HVAC systems and heavy-duty industrial equipment. Its compact design and direct contactor mounting simplify control panel assembly while ensuring reliable operation in harsh industrial environments.
Key Advantages
- Reliable thermal overload motor protection for industrial applications.
- Adjustable overload current range from 60 to 90 A.
- Provides overload and phase failure protection.
- Manual and automatic reset functionality.
- Integrated auxiliary contacts with 1NO + 1NC configuration.
- Designed for seamless integration with IMO motor contactors.
Key Features
- IMO MCOR thermal overload relay series.
- 60–90 A adjustable current range.
- Thermal overload and phase loss protection.
- Manual / automatic reset selection.
- 1 normally open and 1 normally closed auxiliary contact.
- High-current motor protection for industrial machinery.
- Compact design for panel and starter assemblies.
- Trip Class 10A protection characteristics.
Heavy-Duty Motor Protection for Industrial Systems
Thermal overload relays are essential for protecting electric motors against excessive current draw and overheating. By monitoring motor current continuously, the relay disconnects the motor circuit before thermal damage occurs, helping to extend equipment lifespan and reduce maintenance costs.
The IMO MCOR series is designed for industrial motor control systems requiring dependable protection and straightforward integration with contactors and starter assemblies. The MCOR-4-90 is particularly suited for larger motors operating in demanding industrial environments.
Typical Applications
- Industrial pumps and compressor systems.
- HVAC and ventilation equipment.
- Heavy-duty conveyors and material handling systems.
- Industrial processing machinery.
- OEM motor starter assemblies.
- Factory automation and industrial control panels.
Technical Specifications
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| Mounting Type | Direct mount on contactor | |
|---|---|---|
| Device Type | Thermal Overload Relay | |
| Current Range | 60–90 A | |
| Compatible With | MC90–MC115 | |
| Trip Class | Class 10A | |
| Reset Type | Manual / Automatic | |
| Phase | Three Phase | |
| Poles | 3-pole | |
| Adjustable current range | 60–90 A | |
| Series | MCOR Thermal Overload Relays | |
| Product type | Thermal overload relay | |
| Protection function | Thermal overload and phase failure protection | |
| Reset type | Manual / automatic selectable | |
| Auxiliary contacts | 1NO + 1NC | |
| Trip class | Class 10A | |
| Voltage rating | Up to 690 V AC | |
| Number of poles | 3-pole | |
| Mounting type | Direct mounting to compatible contactors | |
| Connection type | Screw terminals | |
| Operating temperature | Approx. -25°C to +60°C | |
| Compliance | IEC motor protection standards | |
| Weight | Approx. 0.45 kg | |
| HS Code | 8536303000 | |
| Country of Manufacture | Austria |
Frequently Asked Questions
What is the IMO MCOR-4-90 used for?
The relay provides thermal overload and phase failure protection for high-current industrial motors and motor starter systems.
What current range does this overload relay support?
The MCOR-4-90 features an adjustable overload current range of 60 to 90 A.
Does the relay support automatic reset?
Yes, the relay supports both manual and automatic reset modes depending on application requirements.
What protection functions are included?
The relay protects against motor overload conditions, overheating and phase failure.
Where is this overload relay typically installed?
The MCOR-4-90 is typically mounted directly to industrial contactors inside motor starter panels and automation control systems.
Trusted by Industrial Engineers Worldwide
IMO thermal overload relays are widely used in industrial motor control systems to deliver dependable protection, long service life and reliable machine operation in demanding environments.
