imo mcor-6-320 thermal overload relay for mc210-mc316 contactors 216-320a

imo mcor-6-320 thermal overload relay for mc210-mc316 contactors 216-320a

IMO MCOR-6-320 thermal overload relay with adjustable 216-320A protection range for industrial motor control and heavy-duty motor starter applications.

SKU: MCOR-6-320Alt SKU: MCOR6320MPN: MCOR-6-320
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List Price £704.40 ex VAT
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Why Choose the IMO MCOR-6-320 Thermal Overload Relay?

The IMO MCOR-6-320 is a high-capacity thermal overload relay designed to provide dependable motor protection for large industrial motors operating in demanding environments. Engineered for use with compatible IMO MC series contactors, this overload relay safeguards motors against overload currents, overheating and phase failure conditions that can lead to equipment damage and production downtime.

As part of the reliable IMO MCOR overload relay series, the MCOR-6-320 combines robust industrial construction with precise thermal protection characteristics. Its adjustable overload settings and durable design make it suitable for motor starter assemblies, MCC panels and heavy-duty automation systems requiring reliable motor protection.

With an adjustable current setting range of 216 to 320 A, the IMO MCOR-6-320 is ideal for protecting large three-phase motors used in industrial pumps, compressors, processing systems, conveyors and heavy machinery. Its direct mounting format enables streamlined integration into industrial control panels and motor control centres.

Key Advantages

  • Reliable thermal overload motor protection for heavy-duty industrial applications.
  • Adjustable overload current range from 216 to 320 A.
  • Provides overload and phase failure protection.
  • Manual and automatic reset functionality.
  • Integrated auxiliary contacts with 1NO + 1NC configuration.
  • Designed for seamless installation with IMO motor contactors.

Key Features

  • IMO MCOR thermal overload relay series.
  • 216–320 A adjustable current range.
  • Thermal overload and phase loss protection.
  • Manual / automatic reset selection.
  • 1 normally open and 1 normally closed auxiliary contact.
  • Heavy-duty protection for industrial motor systems.
  • Direct mounting design for motor starter assemblies.
  • Trip Class 10A protection characteristics.

Advanced Protection for High-Power Industrial Motors

Thermal overload relays continuously monitor motor current and disconnect the circuit if excessive current or overheating conditions occur. This protection helps prevent motor winding damage, insulation failure and unplanned downtime in demanding industrial applications.

The IMO MCOR series is engineered for industrial motor control systems requiring dependable overload protection and long-term operational reliability. The MCOR-6-320 is particularly suited to larger motors operating under heavy load and continuous-duty conditions.

Typical Applications

  • Large industrial pumps and compressor systems.
  • Heavy-duty conveyors and material handling systems.
  • Industrial processing and manufacturing machinery.
  • HVAC and ventilation systems.
  • Motor control centres and MCC panels.
  • Factory automation and industrial power systems.

Technical Specifications

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Mounting Type Direct mount on contactor
Device Type Thermal Overload Relay
Current Range 216–320 A
Compatible With MC210–MC316
Trip Class Class 10A
Reset Type Manual / Automatic
Current 320 A
Phase Three Phase
Poles 3-pole
Adjustable current range 216–320 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. 0.95 kg
HS Code 8536309090
Country of Manufacture Austria

Frequently Asked Questions

What is the IMO MCOR-6-320 used for?

The relay provides thermal overload and phase failure protection for large industrial motors and heavy-duty motor starter systems.

What current range does this overload relay support?

The MCOR-6-320 features an adjustable overload current range of 216 to 320 A.

Does the relay support automatic reset?

Yes, the relay supports both manual and automatic reset modes depending on system requirements.

What protection functions are included?

The relay protects motors against overload conditions, overheating and phase failure.

Where is this overload relay typically installed?

The MCOR-6-320 is typically installed in motor control centres, industrial starter panels and heavy-duty automation equipment.

Trusted by Industrial Engineers Worldwide

IMO thermal overload relays are widely used in industrial motor control systems to provide reliable motor protection, operational safety and dependable performance in demanding industrial environments.