What does it mean for a circuit breaker to be "self-resetting"?

When a circuit breaker is described as "self-resetting," it means that, after tripping due to an overcurrent situation or fault, the breaker automatically returns to its closed position once the fault condition is cleared. This automatic reset feature allows for continued operation without the need for manual intervention or resetting by an electrician.

This characteristic is particularly useful in applications where a brief interruption in power may be acceptable, allowing the circuit to resume operation automatically after the overload or fault is resolved. Self-resetting circuit breakers are often used in situations where frequent tripping might occur, helping to minimize downtime and improve overall system reliability.