Thermal Overload Relay, Adjustable

The MCE2 Thermal Overload Relay is a bi-metal overload relay designed to protect three-phase motors from sustained overcurrent. It is suitable for panel builders, electricians and maintenance teams fitting or replacing overload protection on contactor-based starters, and is available in three frame sizes to match a wide range of contactor and current ratings.

• Application: Motor overload protection on contactor starters
• Frame sizes: Small, Medium and Large frame
• Contactor compatibility: Small Frame: MCE-D09 to D32; Medium Frame: MCE-D25 to D38; Large Frame: MCE-D40 to D95
• Adjustment: Adjustable current rating within each frame's range

Key Features

• Bi-metal thermal sensing trips reliably on sustained overload conditions
• Direct mount to matching MCE contactor frame, keeping the starter compact
• Adjustable current dial allows fine-tuning to the actual motor full-load current
• Three frame sizes cover small to large motor starter builds without over-specifying

Typical Applications

• Motor starter overload protection
• Panel building and starter assembly
• Pump and fan motor circuits
• Contractor and maintenance replacement of failed overloads

Technical Specifications

What's Included

• 1 x MCE2 Thermal Overload Relay (frame and current range as selected)

Please note: Matching MCE contactor, wiring and enclosure are not included unless specifically listed above.

Installation & Compatibility Notes

• Confirm the frame size (Small/Medium/Large) matches your MCE contactor before ordering.
• Set the adjustable dial to the motor's actual full-load current, not the contactor rating.
• Installation should be carried out by a suitably qualified electrician where required.

Warranty & Support

This product is supplied with the applicable manufacturer or supplier warranty, subject to correct installation, correct application, and warranty terms.

Zisabo supplies quality plumbing, pump, filtration and electrical products with practical support to help customers choose the correct item for their application. If you are unsure whether this product is suitable, contact us before ordering and our team will assist where possible.

Need help choosing? If you are unsure whether this product is suitable for your system, contact Zisabo with your application details, voltage, current rating, pin/base configuration or installation environment, and we will assist where possible.