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Unread 04-04-2012, 14:40
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Re: Intermittent connection on field only

Quote:
Originally Posted by Mark McLeod View Post
I think the Victors will survive.
I actually tested this hypothesis a couple of weeks ago and the 40amp breaker on the circuit will trip before the Victor suffers harm.

The order seems to be:
  • Jaguars trip first (most sensitive)
  • 40 amp breakers trip second
What this means is that swapping the Jag out for Victor will help in marginal cases, but won't do any good if the problem is more than borderline.
Some gear ratios just need to be recalculated.
I generally agree. The risk is not so much the incidental overload, but the cumulative damage. The auto-reset breakers are not very fast and they often finally open the circuit at currents much higher than their ratings. The Victors are well built and we've been using them for years with very low failure rates but I can see how repeatedly banging on those MOSFETs could result in eventual failure.