If there are no exceptions, the overcurrent protection device safeguarding this circuit must have a rating of at least 300 amperes while a feeder produces a constant load of 240 amperes.
The process of implementing hardware and other electrical components to restrict or disable current flow is known as overcurrent protection. The most popular ways to safeguard a circuit or the internal wiring of a piece of equipment against overcurrent's are with fuses, circuit breakers, or fusible linkages.
A short circuit, a ground fault, an arc fault, or overloading the circuit can all result in overcurrent's. Circuit wire is safeguarded against overcurrent damage by circuit breakers and fuses.
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