Magnetic Circuit Breaker Diagram

Small circuit breakers typically have a manual control lever to switch off the load or reset a tripped breaker while larger units use solenoids to trip the mechanism and electric motors to restore.

Magnetic circuit breaker diagram.

2 0 circuit breaker design. 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. The first component is an electromagnet that is sensitive to large surges in electrical currents. 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. Protecting the conductors and equipment connected to the. So in case of a magnetic circuit breaker a solenoid or an electromagnet is attached to the trip unit. In american homes today thermal magnetic circuit breakers are the most common type.

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. Thermal magnetic circuit breaker definition. Electrical surges can cause short. Overloaded circuits loose or faulty wiring and lightning can cause the circuit breaker to trip.

The function of the solenoid or the trip unit is to generate a magnetic field. Circuit breakers cbs are designed to carry 100 of their rated current yet the national electric code nec dictates an 80 application. This information sheet discusses the difference between 80 and 100 rated circuit breakers.