4. Fuse Failures

Question.2

An engineer uses a 10A, 32V automotive blade fuse in a 230VAC lab setup because the load current is only 6A.
Is this acceptable?

Yes — current is below 10A, so it will protect correctly
Yes — voltage rating does not matter if current is low
No — the fuse may fail to safely interrupt 230VAC during a fault
No — because blade fuses cannot carry 6A AC current

Restart quiz!