Application guide, Wattage calculations – Porter-Cable CH250 User Manual

Page 16

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16 — 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

Contractor

Emergency Relief

Recreational

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

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