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Home Appliance
Amp Reference Chart

Electric Safety

How many appliances can a particular circuit handle?

To determine how many watts a branch circuit can handle, you need to know two things. First, you need to know how many amperes, or amps, for which a circuit is rated. An amp is the amount of electrical current that flows through a circuit. In most homes, lighting and small appliance circuits are 15 or 20 amps, and major appliances are on 20, 50 or even 60 amp circuits.

Second, you need to know the volts flowing through the wires. Volts are a measure of the pressure that causes current to flow through a circuit. Generally, household wiring is 120 or 240 volts.

To determine the amount of wattage a branch circuit can handle, multiply the circuit's amperage by the circuit's volts. A 20-amp, 120-volt circuit can handle 2,400 watts.

The following list gives you the average wattage rating for common household equipment. For specific information on your home equipment, check the manufacturer's listing found in your owner's manual or on the information plate of the equipment. For lighting, check the wattage rating of the bulbs being used.

All wattages are approximate. See your equipment documentation for exact wattage.

Equipment Wattage
Baseboard Heater 1,600
Clothes Dryer 4,900
Dishwasher 1,200
Frost-Free Deep Freeze 500
Frost-Free Refrigerator 615
Furnace 500
Garbage Disposal 450 to 950
Oven 4,000 to 8,000
Range 4,000 to 5,000
Room Heater 1,350
Standard Deep Freeze 400
Standard Refrigerator 325
Washing Machine 500
Water Heater 2,000 to 5,000
Equipment Wattage
Blender 300
Box Fan 175
Clock Radio 70
Coffee Maker 1,200
Food Processor 200
Hair Dryer 600
Heating Blanket 200
Heating Pad 65
Iron 1,100
Microwave Oven 1,450
Mixer 130
Sewing Machine 75
Toaster 1,150
Toaster/Toaster Oven 1,150
Two Burner Hot Plate 1,650
Vacuum Cleaner 750 to 1,350
Equipment Wattage
Computer 300
Stereo 1,200
Television 150
Equipment Wattage
Circular Saw 1,200
Drill Press 1,100
Power Drill 360
Table Saw 4,500
Wet/Dry Vacuum 1,850

Call Before You Dig

Before beginning any excavation in the vicinity of underground electrical lines or working within 10 feet of an overhead high-voltage electrical line, call 811 to request an underground locator service or overhead safeguards. For more information, visit Call811.com.

Energy Education for Kids

Have fun learning about electricity and power companies at our educational website, Learning Power.

Did You Know?

Solar Energy is measured by the kilowatt-hour. One kilowatt = 1000 watts. One kilowatt-hour (kWh) of energy will burn a 100 watt light bulb for 10 hours.


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