Thermal Magnetic Motor Circuit Breaker

The conventional method is the 3 component system where circuit breaker magnetic contactor and thermal overload relay are installed to control and protect the motor.

Thermal magnetic motor circuit breaker.

However engineers and technicians found some problems coming out with this method. In case of overload or short circuit the breaker trips opening the circuit and protecting the conductors. Thermal magnetic circuit breakers which are the type found in most distribution boards in europe and countries with a similar wiring arrangements incorporate both techniques with the electromagnet responding instantaneously to large surges in current short circuits and the bimetallic strip responding to less extreme but longer term over current conditions. Molded case circuit breakers in individual enclosures are also being used in numerous applications.

They install on a standard 35mm din rail and work with a variety of accessories to make wiring as easy as possible. Available for systems up to 600 vac or 250 vdc with current ratings up to 800a. The traditional molded case circuit breaker uses electromechanical thermal magnetic trip units that may be fixed or interchangeable. C3controls series 330 motor protection circuit breakers provide reliable overload and short circuit protection for all your motor control applications and are ideal for use in multi motor applications.

In american homes today thermal magnetic circuit breakers are the most common type. The majority of circuit breakers are thermal magnetic which means they accomplish electrical protection by combining two mechanisms that respond to heat and magnetic fields respectively. The motor protection circuit breaker can be considered a subtype of a thermal magnetic circuit breaker but with additional functions that are specially designed to protect electric motors. Minimum downtime downtime is reduced and fuse replacement is eliminated with circuit breakers.

There are two commonly used methods of motor control system used in the industry. These are circuit breakers which utilize two components to detect electrical faults. The first component is an electromagnet that is sensitive to large surges in electrical currents. Choose from a premier selection of trip units including thermal magnetic electronic and magnetic only switches.

Contact me about this product. The bimetal serves as a means of handling overcurrents. The basic working principle is similar to all other circuit breakers. An mccb provides protection by combining a temperature sensitive device with a current sensitive electromagnetic device.

Thermal magnetic circuit breakers contain two different switching mechanisms a bimetal switch and an electromagnet.