Owner`s manual

3100 OFFSHORE
38
4.3 DC Distribution System
The battery switches are part of an integrated DC power distribution system that contains several components.
This panel is made up of battery switches, voltage sensitive relays (VSR) and the 12-volt power distribution
breakers. The battery switch panel is located under the cabin steps.
COMPONENT DESCRIPTION
Battery Master Switch: These switches feed the engines and DC circuits. These are "ON/OFF" switches.
Turn the switch so that the green "ON" indicator is displayed. All switches should in the 'ON" position
whenever the boat is in operation.
Parallel Switch: Connects the batteries together for engine starting or charging of all batteries.
Voltage Sensitive Relay (VSR): The VSR allows two batteries to be charged either by one engine or
by the on-board battery charger. The VSR prevents both batteries from being discharged by automati-
cally isolating the engine battery.
24-Hour Essential Circuits: Used for protection of circuits that are not switched off by battery master
switches.
Medium Duty Circuit Breaker: Used to protect high amperage circuits and panel feeds.
Heavy Duty Circuit Breaker: Used to protect the windlass circuit.
Heavy Duty Distribution Stud: One or more of these may be used to distribute negative DC power.
Heavy Duty Buss: Contains multiple distribution studs to distribute negative DC power.
DC Power Distribution