What does the marking 380V~100KV on the insurance label mean?

2009-08-20View Original

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What does the marking 380V~100KV on the insurance label mean?

Reply #22009-08-20

Sorry, I entered it wrong; it should be 380V~100KA.

Reply #32009-08-20

100KA refers to the breaking capacity; the fuse will blow when the current exceeds 100KA. A fuse generates an arc at the moment it blows; if the arc current is large enough, an arc short circuit can occur even after the fuse has blown. To ensure safety, the rated fuse current must be much lower than the breaking capacity, and the rated voltage must be higher than the operating voltage

Reply #42009-08-21

It should be the maximum breaking capacity, ensuring reliable fusing in the event of a short circuit without causing serious consequences

Reply #52009-08-21

It should be the range of current usage

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