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15 — ENG
STARTING WATTAGE REQUIREMENTS
1. Some appliances and tools will list on the motor
name plate the starting and running voltage and
amperage requirements. Use the following formula to
convert voltage and amperage to wattage:
Volts X Amp = Watts
120 volts x 10 amps = 1200 watts
2. To determine the approximate starting wattage
requirement for most appliances and tools with
inductive type motors, multiply the wattage that
was calculated by 2 to 4 times to assure adequate
generator capacity. If the nameplate information is
not available use the values on the following chart
as a guide.
3. Remember that the starting and running wattage
for resistive loads are the same. (Example: a 100
watt light bulb requires only 100 watts to start.)
Most resistive loads will
be listed in wattage.
WATTAGE CALCULATIONS
The wattage ratings shown are averages. Wattage requirements may vary
with different brands of appliances.
Application Guide
To select the right generator for your needs, total the wattage
of the items to be run at the same time.
Run
Electric Appliance
Wattage
ContractorEmergency ReliefRecreational
3/8" Hand Drill
Jigsaw
1/3 HP Airless Sprayer
6" Bench Grinder
Belt Sander
Demolition Hammer
7 1/4" Circular Saw
Light Bulb
Home Security
Television
Microwave
Toaster Oven
Portable Heater (5,000 BTU)
Furnace Fan
Refrigerator/Freezer
Sump Pump
Clothes Washer
Water Heater
Air Conditioner (20,000 BTU)
12V DC Battery Charger
Radio
Slow Cooker
Electric Blanket
Electric Skillet
Coffee Maker
Small Refrigerator
100
250
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6500
7000
7500
Start