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S
1. DC S
YSTEM
The 24/12 volt direct current (DC) electrical system
derives its power from the batteries, which are kept
charged by an engine-driven alternator and/or AC
converter. The battery voltage is indicated by the
voltmeter on the main distribution panel and control
station instrument panel. Each battery bank can
be checked with the battery voltage test switch only
on the DC distribution panel. The batteries supply
power to the circuit breakers on the main DC
breaker panel in the bilge, then to the control station
breakers and DC distribution panel breakers in the
salon. The 24/12 volt dash systems are protected
by the ELECTRONICS (12V) and CONTROL
STATION MAIN (24V) breakers on the main DC
breaker panel on the port side of the aft bilge. The
24 volt functions on the salon DC distribution panel
are protected by the "CABIN MAIN" breaker on the
main DC breaker panel.
All main grounds are connected at the main DC
ground buss located on the starboard mid engine
room bulkhead (see Fig. 6.1.1). The negative
terminal of each bank of batteries is connected to
the ground buss, and then on to ground the engines.
This negative ground system is the approved
system for marine DC electrical systems.
B
L
ATTERY
OCATIONS
(F
. 6.1.1)
IG
A
BOW THRUSTER BATTERY BANK
B
MAIN DC BREAKER PANEL
C
PORT SYSTEMS BATTERY BANK
D
MAIN GROUND BUS
E
STARBOARD SYSTEMS BATTERY BANK
F
GENERATOR BATTERY
58 Sedan Bridge (585 Sedan Bridge)
6 • E
ECTION
C
B
A
https://www.boat-manuals.com/
S
LECTRICAL
2. B
ATTERIES
The batteries in your boat have been selected for
their ability to furnish starting power based on
engine and generator starting requirements as well
as their ability to supply power to the DC system.
The main engine cranking batteries consist of two
(2) banks located on the starboard side of the engine
room. Each bank consists of two (2) 8D 12 volt
batteries connected in series to create the 24 volts
required for engine start, as well as to supply the
electrical system loads.
The recommended main engine battery to install in
your boat is a Group 8D, 12 volt marine battery with
a minimum of 1400 cold cranking amps and 435
minutes reserve capacity.
Application
Group
Engines
8-D
Generator
31
Bow/Stern
8-D
Thruster
* Cold Cranking Amps
The generator has its own battery for starting and is
located on the starboard side of the generator. The
recommended battery is a Group 27 12 volt marine
D
YSTEM
Volts
CCA*
Reserve
12
1,400
435
12
650
810
12
1,400
435
E
F
Qty.
4
1
2
6.1
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