On Sat, 28 Jun 2008 14:25:51 +0700, Bruce in Bangkok
wrote:

On Fri, 27 Jun 2008 19:01:16 +1000, Herodotus
wrote:

On Fri, 27 Jun 2008 01:53:57 GMT, Jere Lull wrote:

On 2008-06-26 08:11:48 -0400, Herodotus said:

I have been looking for a 30 AMP circuit breaker to add to my rebuild
of switch panel on Herodotus.

I had often wondered if two 15 AMP ones in parallel would work and be
equivalent to a single 30 AMP one but thought "No, thats dumb - too
simple a solution"

I wonder about the original premise, as I have a 50 amp breaker. It's
not in the panel, in fact it protects the panel, but they exist. As I
recall, it mounts through a 1/4 or 3/8" hole, a simple push-button.

The shop - Jaycar, a nation wide store in Australia similar to what
Radioshacks used to be like did not had the push buttom type you write
of in 50 AMPs but not in 30 in their rather extensive catalogue.

Peter


Peter,

I assume that you are looking for an "If all else fails this one
blows" sort of devise like the main entrance fuses on a house.

Try any commercial electric shop. You probably will have to be
satisfied with an "AC" breaker but, hopefully, you are not using it as
a switch. As a safety device it will work just fine. A friend of mine
did empirical tests on "AC" breakers using 12 VDC and the breakers
trip at the rated amperage. If you don't like that idea use a fuse -
the kind that have a copper tongue at each end. Drill a hole and bolt
them into the system.

I'm still in the yard. Top sides done and now trying to finish the
bottom in between rain squalls. The bottom is faired and mostly sanded
- hopefully we'll finish that today. then a seal coat, which we will
need good weather for and then a tie coat and the anti-fouling and
back in the water.

I've been doing an anti-rain dance on the fore deck every morning but
it isn't working very well - clear at 06:00 and by 09:00 black clouds
building up in the west.

Bruce-in-Bangkok
(correct Address is bpaige125atgmaildotcom)

Hi Bruce,
Thanks for this advice.

I am actually wanting to use them on my main switchboard as circuit
fuses. I meant to say in my posting that I can get 25 and 50 AMP
circuit breakers but no 30 AMP ones. After adding extra gear to the
boat in the many years after launching I have fuses in different
places as at the time it was easier to add an extra circuit off
another without doing the fiddly work of adding to the switchboard.

I shall have a look at those you wrote of.

Regarding your boat work, I shall pray for good weather for you at
next Friday prayers as, being a Moslem, I am closer to God than you
and it should thus be more effective than your pagan rain dance.
Perhaps you should do a Huckleberry Finn thing with a dead cat in a
stump full of water? It does get rid of warts and could also be
effective in stopping rain.

I may have some time when I go home from Sydney soon to shoot up your
way so that I can insult you in person and not from behind the
safeguard of the internet. I have been told that I may need to visit
Bangkok with some colleagues.

Good luck for the project.

cheers
Peter