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Motor protection is used to prevent damage to an electrical motor and to reduce the incidence of problems such as internal faults and abnormal conditions. The type of motor protection you choose will depend on the size of motor you need it for and the voltage level required.

**What does motor protection do?**

Motor protection units protect against various types of damage that can occur within a motor, such as problems arising from vibration or excess torque. Motor protection units also take care of other mechanical limitations like startup frequency management, and control operating characteristics like voltage, phases and short-circuit current availability.

**What is motor protection used for?**

Motor protection is mainly used to manage and protect synchronous and asynchronous motors. They can also be used for [circuit breakers](/web/c/automation-control-gear/circuit-protection-circuit-breakers/electronic-circuit-breakers/) (devices used for stopping the electric current as a safety measure) and motors in a variety of drive applications, such as motor drives for pumps, fans, compressors, mills and crushers.



Shop our range of Motor Protection supplies & accessories. Free Next Day Delivery. Browse our latest Motor Protection offers.

Electric Motor Protection | Circuit Breaker | RS

Motor Protection

Buy from our selection of motor protection from Bradley. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

Bradley Motor Protection | RS

Shop our range of motor protection. Browse our latest offers for motor protection. Don't miss out on our latest deals!

Motor Protection Circuit Breaker | RS

Buy Schneider Electric Motor Protection. Browse our latest Schneider Electric Motor Protection offers. Free Next Day Delivery.

Schneider Electric Motor Protection | RS

Buy from our selection of Motor Protection from Siemens. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

Siemens Motor Protection | RS

Buy Eaton Motor Protection units from RS. Browse the latest Motor Protection units by Eaton, with free next day delivery!

Eaton Motor Protection | RS

<p>Safeguard your motors and say goodbye to machinery downtime with motor protection units by Eaton.</p><h2>What is motor protection?</h2><p>These devices protect against damage and help to limit issues such as internal faults or problems caused by vibration and excess torque, so your motors can keep running efficiently for longer. You can also use them to manage mechanical limitations such as startup frequency management and control operating characteristics. These units are primarily used to regulate and protect synchronous and asynchronous motors. Eaton is a respected leading global supplier for motor protection and have a large offer of circuit breakers, so you can be sure to find the right model to suit your application.</p><p>Try the Eaton Moeller range PKZ motor-protective circuit breakers if you need dependable short-circuit and overload protection in one device. With 2 versions available, you can cover voltage ranges from 0.1 A to 63 A. They include handy features such as a rotating handle with clear switch position (ON and OFF), DIN rail mounting, and a rated voltage of 690 V ac. They form part of the Eaton xStart family of control gear products. The PKZM0 motor protection range of circuit breakers are designed to keep your operations running smoothly by reducing downtime of machinery, acting as an intermediary between devices. They are matched to the Eaton DIL contactors. They offer reduced installation time as accessories can be installed without the need for tools.</p><h3>What's the difference between MPCB's and MCCB's?</h3><p>MCCB's (Moulded case circuit breakers)  are devices which are used for general circuit protection, however MPCB's (motor protection circuit breakers) are specifically used to protect motors. Although they both guard against overloads and short-circuits, MPCB's also defend against phase loss and under-voltage faults.</p>

Buy from our range of ABB MS116 Circuit Breakers. At RS, our aim is to give you the best offers with free next day delivery.

ABB MS116 Circuit Breakers | RS

<p>ABB's MS116 circuit breakers, also known as motor starters, are compact devices that can be used to switch motors on or off. ABB's MS116 circuit breakers allow you to take the power into your own hands, ensuring you can reliably protect the circuit motor from short-circuits, phase failures and overload, without the need for a fuse. ABB's MS116 range provides you with high-quality circuit breakers that are guaranteed to keep your circuits safe and reduce the risk of faults and abnormal conditions occurring.</p><p>ABB are a world-renowned technology giant and choosing an MS116 circuit breaker from their range guarantees you an innovative, high quality and reliable product. ABB excel at applying new market requirements and applications to their products and their MS116 circuit breakers provide high quality, reliability, and great value for money.</p>

Buy from our range of ABB Circuit Breakers. At RS, our aim is to give you the best offers with free next day delivery.

ABB Circuit Breaker | RS

A circuit breaker is a safety device that can be installed to protect an electrical circuit from short circuit or overcurrent, which would cause damage. In partnership with ABB, we bring to you a high-quality range of circuit breakers that are guaranteed to keep your circuits safe and reduce the risk of any abnormal conditions and internal faults.<h2>What do circuit breakers do?</h2>The basic function of an ABB circuit breaker is to interrupt current flow to protect equipment and prevent the risk of fire. A circuit breaker can be reset time and time again, unlike a fuse which only operates once and must then be replaced.<h2>Why choose a circuit breaker from ABB?</h2>ABB are a world-renowned technology giant who ensure all their circuit breakers meet the relevant grid requirements, guaranteeing an innovative, high quality and reliable product range. ABB develop their products with new trends and the ever-developing electrical power distribution industry in mind. They excel at applying new market requirements and applications to their products and produce circuit breakers that ensure accuracy, reliability, and of course high quality.

Motor Protection Circuit Breaker

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