DeVillbiss Air Power Company MGP-4600 - Manual (Page 10)

10
WATTAGE CALCULATING INSTRUCTIONS (cont'd)
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 volt-
age and amperage to wattage:
Volts X Amp = Watts
Example 1: (Starting voltage and amperage for 1/3
HP furnace fan)
120 volts x 10 amps = 1200 watts
2. To determine the approximate starting wattage require-
ment 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 resis-
tive loads will be listed in wattage.