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4G5: DC Power & Breaker Panel
Author’s note: The Grand Banks electrical
switch panels are made from a high-gloss
material, so it is impossible to photograph
them “straight-on”. That is why they are shot
at an angle....
The nerve center of the DC electrical system
is the DC circuit breaker panel located in the lower
panel to port of the aft cabin steps. On this panel
are the switches that control power to the boat’s
various systems.
As for the breaker panel itself, just as in your
home, most of these switches are true “circuit
breakers”: they feed power to somewhere in the
boat where there is another switch which, in turn,
turns the item on and off. An example of this would
be the circuit breakers for the horn and electric
head. If the breaker is turned on, the horn won’t work unless you push the horn button, and the
head won’t flush unless you are there in the head compartment to operate it!
But some of the other breakers also serve as the switch for the item. An example of this
would be the navigation light breaker or the macerator pump breaker.
This panel is alongside the aft stateroom stairway. Here are its functions using the same
code as for the AC panels:
Key:
“B” =
“Breaker”
“S”
= “Switch and Breaker”
Green
= Leave this breaker on Always
Yellow
= Use when Item is Needed
Red
= Use with Caution in Exceptional Circumstances
(See next page)
Section 4G: Electrical Systems, DC 4.18