A ballistic circuit breaker operates on the principle of using the rapid expansion of gases due to a fusing wire to interrupt the circuit. When a fault occurs, the wire inside the breaker melts due to the excessive current, which causes a sudden increase in pressure within the enclosure. This pressure buildup triggers the mechanical mechanism of the breaker to open, thereby interrupting the circuit almost instantaneously.
This type of circuit breaker is designed to respond extremely quickly to overcurrent conditions, offering rapid protection against short circuits and other faults in electrical systems. Its speed of operation is crucial in preventing damage to equipment and ensuring the safety of the electrical installation.
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