In american homes today thermal magnetic circuit breakers are the most common type.
Magnetic circuit breaker.
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.
Thermal magnetic circuit breaker definition.
There are other devices able to break a circuit during a surge or short circuit each with its own limitations.
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.
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Overloaded circuits loose or faulty wiring and lightning can cause the circuit breaker to trip.
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The first component is an electromagnet that is sensitive to large surges in electrical currents.
So in case of a magnetic circuit breaker a solenoid or an electromagnet is attached to the trip unit.
Explanation of magnetic circuit breaker.
Breakers load centers fuses.
These are circuit breakers which utilize two components to detect electrical faults.
Circuit breakers may also use the higher current caused by the fault to separate the contacts such as thermal expansion or a magnetic field.
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