MP15  Automatic Three Phase Motor Protector

Three phase motors can fail due to electrical supply problems including loss of phase, low supply voltage, intermittent supply or damaged control contacts. All too commonly the loss of a phase is beyond your control and occurs at a critical time. The consequence is a burnt out motor which at least requires re-winding, but the cost of a failure can be much more;  

• Cost to remove & re-install the motor for repair. 
• Possible loss of stock and profits. 
• Loss of management time. 

View MP15 Brochure (130k PDF)

Typical Applications of MP15  

 The MP15's is suitable for all sizes of three phase motors and therefore has many applications. Follow this link to 
view a block schematic and typical applications.

The MP15 protects motors from all the above and is fully automatic in operation. Evolved since 1971, the MP15 employs advanced microprocessor technology, and is built with surface mount technology for improved reliability> With these advanced features it is compact and economical can be used on individual motors from 1Hp and above on 415-450V AC 50-60Hz.  

Operationally the MP15 signals system status with the single multi coloured LED, changing from green (running OK)  to amber ( previous memory fault) and red ( fault-motor not running). The MP15 also includes timing functions which can eliminate additional circuitry in refrigeration applications and further improve the economics of motor protection.  

Two mounting styles DIN Mount or 8 pin base  

MP15's are available as DIN mounting with a standard circuit breaker profile or the traditional 8 pin box with a separate octal base required. The electronics used in both 

Model   MP15/e Economy 

MP15/e economy model: all the reliability and protection features of the standard MP15, without 1 second fixed start delay, and without memory and off time input.  Cost effective, solid motor protection 

MP15/1p 

A single phase version of the MP15, ideal to protect sensitive products from fluctuating and interrupted mains supplies. 

MP15 Selection Table