"Lew Hodgett" wrote in message news:Zsnvc.19148

What you are asking is really, "What is the short circuit available on
this
boat?"

The answer is dependant on the size of the house bank.

5,000 amps DC would not be considered unusually large.


Thanks Lew and all, I think you're right. I sure wasn't comfortable with
just the 100A interrupting capability.

What about the idea of a 40A or similar size main breaker (like a Carling)
feeding the polyfused panel board? If there is a fault such that the
polyfuse doesn't trip, the main breaker would trip. This would black out
the boat, but I can live with that in the short term, until I could manually
switch off the circuit that was shorting out the main breaker?

With about 15 circuits on my boat, even ebay DC breakers add up in cost
fast.


--
Evan Gatehouse

you'll have to rewrite my email address to get to me
ceilydh AT 3web dot net
(fools the spammers)


--
Evan Gatehouse

you'll have to rewrite my email address to get to me
ceilydh AT 3web dot net
(fools the spammers)