I have two fuse holders on the outside of my 1983 42 foot Grand Banks.  I have a single 50 Amp 125/250 Volt shore power connector.  The fuses that are in the holders are both 50 Amp fuses (this how the boat came from the previous owner).  The fuse holders look like the one shown in this URL..

http://www.grandbanks.com/parts/product_details.cfm?pid=277

The plastic covers on the screw-in portion of the fuse holder have many cracks and are falling apart; also the imbedded power indicator lights do not work any more.

Anyone know where I can get the plastic cover (without paying the $147 to buy an entire fuse holder from GB)?

Also, I am curious.  I assume that each fuse/fuse holder is in series with each hot leg of the 50 Amp 125/250 Volt shore power cord... BTW, my Grand Banks manual that came with the boat shows no fuses at all in the schematics.

Should the fuses be 50 Amps or did the previous owner install the wrong size fuses?

Would I be correct in assuming the output of my onboard generator does not go through these fuses at all?

Jim Gano

From: Jim Gano via Trawlers-and-Trawlering

I have two fuse holders on the outside of my 1983 42 foot Grand Banks.  I
have a single 50 Amp 125/250 Volt shore power connector.  The fuses that are
in the holders are both 50 Amp fuses (this how the boat came from the
previous owner).
Anyone know where I can get the plastic cover (without paying the $147 to
buy an entire fuse holder from GB)?

Also, I am curious.  I assume that each fuse/fuse holder is in series with
each hot leg of the 50 Amp 125/250 Volt shore power cord
Should the fuses be 50 Amps or did the previous owner install the wrong size
fuses?

Would I be correct in assuming the output of my onboard generator does not
go through these fuses at all?(endsnip)

Hi Jim,
You are correct, these fuses are in each of the 50 amp hot legs of your
shore power. If you have shore power inlets at the bow and stern of your
boat like a lot of 42GB's have, you have a pair of these fuses both places.
50 amp would be the correct size, although it is acceptable to have 60 amp
there (provided you have #6 wire ran from there to the dist panel, and I'm
sure you do) because you no doubt have 50 amp breakers inside the boat at
the panel. This would make the breakers that are easy to get to and easy to
reset be the first to trip, but still protect the wire going from the inlet
to the breaker.
You are correct that the gen does not go through these fuses. It should have
a breaker on the genset itself (or very close to it) to protect that wire.
Some older boats did not have that breaker though. My 88 model Westerbeke
did not have it.
I'm not aware of anywhere to buy just the cap, but if the caps are that bad
the fuse holder probably has corrosion and could use replacement anyway. I
know Ward's Electric in Florida carries those fuse holders too, but the
price you got from GB is about the going rate. I'm actually surprised GB
sells them that cheap. They are expensive little buggers. I recently
replaced all 4 on a 1990 model GB 42 as well as both inlets. The bow where
these fuses and inlets are located is a very wet, salty place for electrical
connections to reside......

Sorry for the bad news, but I hope the rest of this info helps. If you do
find the caps, let us all know where!

Brent Hodges
Seabrook, Tx

Jim:

I have purchased these from FIC for a Hatteras.

They have a website at http://www.ficcorp.com/

Frank Burrows  Destiny  79 43' Viking  Piney Narrows  Chesapeake Bay