imo mcor-3-65 thermal overload relay for mc50-mc74 contactors 52-65 amps

Why Choose the IMO MCOR-3-65 Thermal Overload Relay?

The IMO MCOR-3-65 is a heavy-duty thermal overload relay engineered to provide dependable motor protection for industrial control and automation systems. Designed specifically for integration with the IMO MC contactor series, this overload relay protects motors against overload conditions, phase failure and excessive current draw, helping maximise motor lifespan while reducing downtime in demanding industrial environments.

Part of the trusted IMO MCOR thermal overload relay range, the MCOR-3-65 features an adjustable overload setting range of 52 to 65A, with star-delta protection support from 104 to 156A. The relay includes integrated 1NO + 1NC auxiliary contacts together with manual reset functionality for dependable overload protection and flexible control circuit integration.

Its compact industrial mounting format allows direct installation onto compatible IMO MC50 to MC74 contactors, creating a reliable and efficient motor starter solution for pumps, compressors, conveyors, HVAC systems and industrial process machinery.

Key Advantages

• Reliable thermal overload motor protection for industrial applications.
• Adjustable overload range from 52 to 65A.
• Supports star-delta motor protection from 104 to 156A.
• 1NO + 1NC auxiliary contacts included.
• Compatible with IMO MC50 to MC74 contactors.
• Compact industrial plug-in mounting configuration.

Key Features

• IMO MCOR thermal overload relay series.
• 52 - 65A adjustable current range.
• 104 - 156A YD star-delta protection range.
• Suitable for MC50 to MC74 contactors.
• Manual reset operation.
• 1NO + 1NC auxiliary contacts.
• Integrated thermal overload and phase failure protection.
• Compact contactor-mounted industrial design.

Technical Specifications

• Manufacturer: IMO Precision Controls
• Series: MCOR Thermal Overload Relays
• Model: MCOR-3-65
• Product type: Thermal overload relay
• Adjustable current range: 52 - 65A
• Star-delta range: 104 - 156A
• Compatible contactors: IMO MC50 to MC74
• Auxiliary contacts: 1NO + 1NC
• Reset mode: Manual reset
• Mounting type: Plug-in / contactor mount
• Number of poles: 3 pole
• Rated operational voltage: up to 690V AC
• Protection function: Thermal overload and phase failure protection
• Rated current: 65A maximum
• Warranty: 1 year
• Standards: IEC/EN 60947-4-1
• Approvals: CE, UL, cUL, RoHS compliant

Reliable Motor Protection for Industrial Systems

Thermal overload relays such as the IMO MCOR-3-65 are designed to protect electric motors from overheating caused by overload conditions, stalled rotors or phase imbalance. By disconnecting the motor before thermal damage occurs, overload relays improve system reliability, reduce maintenance costs and protect industrial equipment from premature failure.

The MCOR series is specifically engineered for direct integration with IMO MC contactors, creating compact and dependable motor starter assemblies suitable for demanding industrial automation systems and heavy-duty machinery.

Typical Applications

• Industrial motor starter assemblies.
• Pumps and compressor systems.
• HVAC and ventilation equipment.
• Conveyors and material handling systems.
• Industrial automation machinery.
• Three-phase motor protection systems.

Trusted by Industrial Automation Engineers

IMO MCOR thermal overload relays are trusted throughout industrial automation systems for dependable motor protection, reliable overload detection and long-term operational performance.