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Interrupting rating and short-circuit current rating are two terms with identical definitions and meaning, false.
What is interrupting rating?
- Breaking capacity or interrupting rating is that the current that a fuse, breaker , or other electrical apparatus is in a position to interrupt without being destroyed or causing an electric arc with unacceptable duration.
- It also corresponds to a certain voltage, so that an electrical apparatus might have quite one breaking capacity current, that is consistent with the actual operating voltage.
- Breaking current could also be stated in terms of the total current or just in terms of the alternating-current (symmetrical) component.
What is Short Circuit Current Rating?
- Short Circuit Current Rating or SCCR is the short circuit current an industrial panel, industrial component, or group of industrial components can withstand without causing a shock or fire hazard.
- The National Electric Code "NEC" requires panels and/or products to be labeled with the available fault current.
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