The magnetic circuit breaker has ______ trip action.
The magnetic circuit breaker has Instantaneous trip action.
Magnetic circuit breakers are designed to protect electrical circuits against overcurrent conditions by tripping the circuit when the current exceeds a certain level.
Magnetic circuit breakers have an instantaneous trip action, which means that they can trip the circuit within a fraction of a second when a short circuit or other high-current fault occurs.
The instantaneous trip action is provided by a magnetic coil that is wound around a core inside the circuit breaker.
When the current flowing through the circuit exceeds a set limit, the magnetic field generated by the coil becomes strong enough to pull down a trip bar or latch, which interrupts the circuit and shuts off the power.
In addition to the instantaneous trip action, magnetic circuit breakers may also have thermal trip elements that provide protection against overloads.