Quote Originally Posted by jwelectric View Post
Something else to bear in mind is that a non-time delay cartridge fuse will blow within 6 cycles or 1/60 of a second but an inverse time breaker can carry 6 times its rated current for up to two minutes. The fuse will blow when loaded to 100 amps in less than a second but a 100 amp breaker can let through 600 amps for as long as two minutes but in most cases when loaded to 600 amps will trip in a few seconds, (between 2 and 30 seconds)
How did You come up with these figures ?