Magnetic Circuit Breaker Diagram

Thermal magnetic circuit breaker definition.

Magnetic circuit breaker diagram.

A magnetic circuit breaker is a safety device designed to cut an electrical current in the event of a power surge thus protecting electrical equipment and circuitry from damage. Circuit breakers cbs are designed to carry 100 of their rated current yet the national electric code nec dictates an 80 application. This is done when the current passes through the solenoid magnetism develops in it due to changing magnetic flux and a magnetic field is created around the solenoid. These are circuit breakers which utilize two components to detect electrical faults.

Electrical surges can cause short. Protecting the conductors and equipment connected to the. Two mechanisms are used simultaneously to offer an end result that combines the response characteristics of each but the goal of both is the same. Circuit breakers may also use the higher current caused by the fault to separate the contacts such as thermal expansion or a magnetic field.

Overloaded circuits loose or faulty wiring and lightning can cause the circuit breaker to trip. 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. So in case of a magnetic circuit breaker a solenoid or an electromagnet is attached to the trip unit. There are other devices able to break a circuit during a surge or short circuit each with its own limitations.

The first component is an electromagnet that is sensitive to large surges in electrical currents. In american homes today thermal magnetic circuit breakers are the most common type. 2 0 circuit breaker design.