For everything you ever wanted to know about fuses.
Fuse or Circuit Breaker ?
Breaking capacity is the stated limit to which a fuse is tested in term of its ability to break a short circuit current.
It is usually measured in Kilo Amps for industrial fuse links. An example of this would be the NH fuse which can safely interrupt up to 120,000A (120KA) at its rated voltage …
When used in distribution circuits, fuses can be cascaded in rating to isolate certain parts of the distribution circuit while leaving the other parts unaffected.
This is an essential function of a fuse protected distribution circuit to prevent unwanted power outages due to a local fault at another location on the circuit.
Under IEC60269 guidelines, …
- Arc flash protection
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