4F2: AC Breaker 110 Volt Panel
This section of the AC panel provides standard 110-volt power throughout the vessel.
Below are each section’s circuits and their uses (“B” equals “Breaker”, “S” equals “Switch and
Breaker”):
Green = Leave this breaker on Always;
Yellow = Use when Item is Needed;
Blue = Powered by Inverter if no generator or shore power;
Red = Use with care only when required.
110-Volt Breakers
Cabin/Engine Room Plugs
B
*To those receptacles
Galley/Saloon Plug
B
*To those receptacles
Pilot House Plugs
B
*To those receptacles
Refrigerator
B
To Refrigerator Thermostat
Washer/Dryer
B
To Washer & Dryer
Microwave/Stove
B
* To Microwave Oven
Icemaker
B
* To Icemaker Switch
Water Heater
S To Water Heater Thermostat
Battery Charger**
DON’T USE
S To Battery Charger
AirconStateroom
B
To Stateroom A/C Switch
Aircon Saloon
B
To Saloon A/C Switch
Aircon Pilot
B
To Pilothouse A/C Switch
Cooling Pump
S Turns on A/C Cooling Pump
Eng. Rm. Lights
B
*To E/R Light Switch @ door
Trash Compactor
B
To Trash Compactor control
Watermaker
B
To Watermaker
*
Items powered by Inverter when it is on and
there is no Generator or Shore Power.
** The “Battery Charger” breaker is left “Off”
except in emergencies since
all charging when the engines are not running is
normally by only the inverter, and it is automatic
.
Is it 110 or 120 volts?
The fact is, these voltages are “arbitrary” values! It depends upon the shore-side utility or boat
generator settings, as well as the amount of load on the cable or generator. In the “real world”,
it doesn’t matter as long as it’s at least about 105 or volts!
Section 4F: Electrical Systems, AC 4.9