SyStem Operating infOrmatiOnSyStem Operating infOrmatiOn
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dc electrIcal system
DANGER
ALWAYS USE CAUTION WHEN OPERATING AND MAINTAINING THE DC ELECTRICAL SYSTEM. FIRE OR EXPLOSION MAY
RESULT FROM IMPROPER USE OF ELECTRICAL SYSTEMS.
DC ELECTRICAL SYSTEM DESCRIPTION
A 12-volt DC (Direct Current) electrical system is equipped onboard. The DC electrical system is a comprehensive system
designed to meet present and future 12-volt electrical needs. Wire-runs and connections are positioned to prevent
abrasion and exposure to moisture, as well as to remain accessible for inspection, repairs and the addition of aftermarket
electrical accessories.
Wires used throughout the DC electrical system are plastic coated and color-coded. The electrical system is virtually
maintenance free, with only the batteries requiring periodic inspection and maintenance.
BATTERIES
The batteries located in the engine room power the DC electrical system.
• Engine batteries (4) – Two 12-volt batteries are designated for each engine.
• Accessory batteries (1) – One 12-volt battery is designated for the accessory items onboard.
• Generator battery (1) – One 12-volt battery is designated for the generator.
• Stern thruster (2) – Two 12-volt batteries are designated for each stern thruster (if installed).
• Bow thruster (2) – Two 12-volt batteries are designated for each bow thruster (if installed).
MASTER DISCONNECT SWITCHES
Master disconnect switches control electricity from the batteries to the DC control center, engines and accessory items.
Accessory disconnect switch is located at the DC control center, in the salon helm seat base. All other master disconnect
switches are located in the engine room, forward of the generator. On a fully loaded yacht, ve master disconnect switches
control the ow of electricity to the DC components. The switches are allocated as follows: stern thruster, bow thruster,
generator, engine PORT, and engine STARBOARD. Turn the master disconnect switch to the ON position to provide
electricity to the DC control center. The breakers control the ow of electricity to the DC panel’s allocated items.
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