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imo mcor-2-42 thermal overload relay for mc24-mc40 contactors 28-42 amps
IMO MCOR-2-42 thermal overload relay with adjustable 28-42A current range, manual or automatic reset and 1NO plus 1NC auxiliary contacts for industrial motor protection applications.
£69.26
Why Choose the IMO MCOR-2-42 Thermal Overload Relay?
The IMO MCOR-2-42 is a high-performance thermal overload relay engineered to provide reliable motor protection for industrial control and automation systems. Designed specifically for use with the IMO MC contactor series, this overload relay protects motors against overload conditions, phase failure and excessive current draw, helping extend motor life and reduce downtime in demanding industrial environments.
Part of the proven IMO MCOR overload relay range, the MCOR-2-42 features an adjustable current setting range of 28 to 42A, with star-delta protection support up to 48 to 73A. It includes manual and automatic reset functionality together with integrated 1NO + 1NC auxiliary contacts for flexible control circuit integration.
Its compact direct-mount design allows seamless installation onto compatible IMO contactors from the MC24 to MC40 range, creating a safe and efficient motor starter solution for industrial machinery, pumps, fans and automation equipment.
Key Advantages
- Reliable thermal overload motor protection for industrial applications.
- Adjustable overload range from 28 to 42A.
- Supports star-delta motor protection from 48 to 73A.
- Manual or automatic reset operation.
- 1NO + 1NC auxiliary contacts included.
- Compact direct mounting onto IMO MC contactors.
Key Features
- IMO MCOR thermal overload relay series.
- 28 - 42A adjustable current range.
- 48 - 73A YD star-delta protection range.
- Suitable for MC24 to MC40 contactors.
- Manual/automatic reset selector.
- 1NO + 1NC auxiliary contacts.
- Integrated thermal motor protection.
- Compact industrial direct-mount design.
Reliable Motor Protection for Industrial Systems
Thermal overload relays such as the IMO MCOR-2-42 are designed to protect motors from overheating caused by overload conditions, stalled rotors or phase imbalance. By disconnecting the motor before thermal damage occurs, overload relays help improve system reliability and minimise costly downtime in industrial environments.
The MCOR range is specifically designed to integrate directly with IMO MC contactors, creating a compact and reliable motor starter assembly suitable for machinery, conveyors, HVAC systems and automation equipment.
Typical Applications
- Industrial motor starters.
- Pumps and ventilation systems.
- Conveyors and material handling equipment.
- HVAC and refrigeration systems.
- Industrial automation machinery.
- Three-phase motor protection systems.
Technical Specifications
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| Mounting Type | Direct mount on contactor | |
|---|---|---|
| Device Type | Thermal Overload Relay | |
| Current Range | 28–42 A | |
| Compatible With | MC24–MC40 | |
| Reset Type | Manual / Automatic | |
| Phase | Three Phase | |
| Poles | 3-pole | |
| Series | MCOR Thermal Overload Relays | |
| Product type | Thermal overload relay | |
| Adjustable current range | 28 - 42A | |
| Star-delta range | 48 - 73A | |
| Compatible contactors | IMO MC24 to MC40 | |
| Auxiliary contacts | 1NO + 1NC | |
| Reset mode | Manual or automatic selectable | |
| Mounting type | Direct mounting or remote mounting using terminal block | |
| Number of poles | 3 pole | |
| Rated operational voltage | up to 690V AC | |
| Terminal type | Screw clamp terminals | |
| Protection function | Thermal overload and phase failure protection | |
| Flexible cable capacity | 0.75 - 6mm² power circuit | |
| Control circuit cable capacity | 0.5 - 2.5mm² | |
| Operating temperature | -25°C to +60°C | |
| Weight | approx. 0.3kg | |
| Standards | IEC/EN 60947-4-1 | |
| Approvals | CE, UL, cUL, RoHS compliant | |
| HS Code | 8536303000 | |
| Country of Manufacture | Austria |
Frequently Asked Questions
What is the IMO MCOR-2-42 used for?
This thermal overload relay protects industrial motors against overload conditions and phase failure in motor starter applications.
What current range does this overload relay support?
The MCOR-2-42 has an adjustable overload protection range from 28 to 42A.
Does this relay support star-delta motor starters?
Yes. The MCOR-2-42 supports star-delta applications from 48 to 73A.
Which contactors are compatible with this relay?
This overload relay is designed for use with IMO MC24 to MC40 contactors.
Does the relay support manual and automatic reset?
Yes. The MCOR-2-42 includes selectable manual and automatic reset modes.
Trusted by Industrial Automation Engineers
IMO MCOR thermal overload relays are widely trusted for reliable motor protection, compact integration with contactors and dependable long-term industrial performance.:
