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imo mcor-2-20 thermal overload relay for mc24-mc40 contactors 14-20 amps

imo mcor-2-20 thermal overload relay for mc24-mc40 contactors 14-20 amps

IMO MCOR-2-20 thermal overload relay with adjustable 14-20A current range, manual or automatic reset and 1NO plus 1NC auxiliary contacts for industrial motor protection applications.

SKU: MCOR-2-20Alt SKU: MCOR220MPN: MCOR-2-20
Price
List Price £98.94 ex VAT
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Why Choose the IMO MCOR-2-20 Thermal Overload Relay?

The IMO MCOR-2-20 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-2-20 features an adjustable current setting range of 14 to 20A, with star-delta protection support up to 24 to 35A. 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 14 to 20A.
  • Supports star-delta motor protection from 24 to 35A.
  • 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.
  • 14 - 20A adjustable current range.
  • 24 - 35A 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-2-20 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 14–20 A
Compatible With MC24–MC40
Reset Type Manual / Automatic
Phase Three Phase
Series MCOR Thermal Overload Relays
Product type Thermal overload relay
Adjustable current range 14 - 20A
Star-delta range 24 - 35A
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
Weight approx. 0.3kg
Standards IEC/EN 60947-4-1
Approvals CE, UL, cUL, RoHS compliant
HS Code 8536303000
Country of Manufacture Austria
Poles 3-pole

Frequently Asked Questions

What is the IMO MCOR-2-20 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-2-20 has an adjustable overload protection range from 14 to 20A.

Does this relay support star-delta motor starters?

Yes. The MCOR-2-20 supports star-delta applications from 24 to 35A.

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-2-20 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.
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