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ELECTRICAL
Appliance
Required Amps
Air Conditioner (depending on brand, BTU rating and
options)
14.0 to 16.0 Amps
Inverter (depending on wattage rating, brand, and model)
9.0 to 18.0 Amps
Converter with continuous 12 volt power supply (depend-
ing on amp rating and brand)
11 to 17 Amps
Refrigerator (residential compressor-type)
8.5 to 12.0 Amps
RV Refrigerator (Absorption)
2.7 to 6.4 Amps
Microwave Oven
11.3 to 14.2 Amps
Washer and Dryer (2-piece)
16.0 Amps
Television (depending on size, brand, and type)
1.0 to 3.0 amps
Central Vacuum Cleaner
11.3 Amps
Electric Hot Water Heater (depending on brand and type)
11.7 to 12.5 Amps
Food Processor
6.0 Amps
Ice Maker
4.0 Amps
Electric Freezer (Compressor)
6.4 Amps
Hair Dryer (1500w)
12.5 Amps
Electric Co
ff
ee Pot
9.0 Amps
Iron
10.0 Amps
Radio
0.8 Amps
Toaster
8.0 Amps
Electric Frying Pan
10.0 Amps
Co
ff
ee Maker
10.0 Amps
Conversions
You can look at at your electrical appliances, find the label
that contains amperage or wattage ratings and calculate
exact usage by using the formulas below.
•
Watts/Volts = Amps
•
Amps x Volts = Watts
•
Watts/Amps = Volts
EXAMPLE
Most products requiring electricity provide how many
amps or watts it typically utilizes. If your electric hot water
heater is always in use (~12.5 amps), and you start your air
conditioner (~15.0 Amps) and put on a pot of co
ff
ee (~9.0
amps) and make some toast (~8.0 amps) while watching
TV (~ 2.0 amps), you have far exceeded the 30 amp
service, resulting in a tripped breaker.
Many people don’t take into consideration how much
power may be used by the inverters charging circuits
mostly because they are working automatically in the
background. 50 amp service has two 50 amp power legs,
providing a total service of 100 amps.
Stacker Trailer 30 Amp 120 Volt Outlet
This article provides basic operation instructions for a
Stacker Trailer 30 Amp 120 Volt Outlet. The optional
stacker trailer outlet is normally found in the electrical
cord compartment. The outlet power is on a 30 Amp
breaker in the main electrical box and will have power
available when the coach is connected to shore power
or operating via the generator. If no power is available,
check the “Trailer” breaker in the main panel, and reset
if necessary. If the coach is operating via the generator,
also check the breaker located on the generator.
-
+
Batteries
Provides information about the house and chassis battery banks, battery inspection and care, as well as
battery replacement.
Battery Basics
Introduction
As with anything technical, greater knowledge of the
basics may help you increase performance, reliability,
and longevity, as well as prevent future problems with
your batteries. This article will provide information
regarding your coach batteries; however, this is only one
aspect of your coach’s electrical system. To learn more
about your batteries’ role within the system, please refer
to the 12 Volt Electrical article.
Commercial lead acid batteries have been used for
over 150 years. The same chemical principal used to
store energy now was also used many generations
ago. Present day chassis battery power requirements
are tremendous, considering today’s vehicles and all
of the electrical devices that must be supplied. All of
these electronics require a reliable power source, and
poor battery condition may lead to expensive electronic
component failure. A battery is like a piggy bank - it
stores energy, but cannot produce it. If you continue to
withdraw without making any deposits, you will soon
have nothing left.
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