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To find the approximate amperage of electrical devices use the  Ohms Law formula, Amps = Watts divided by Volts. Example... A 1,200 watt device at 120 volts would be 10 amps.
Click Here for Ohms Law Calculator.

Appliances and Approximate Wattages.
ApplianceWattageApplianceWattage
Lighting - Basic1,200 WattsLighting - Full4,000 Watts
Electric Heat5,000 WattsElectric Water Heater5,000 Watts
Refrigrator - 20 Cu Ft800 WattsFreezer - 20 Cu Ft550 Watts
Sump Pump900 WattsWell Pump HP1,000 Watts
Well Pump 1HP2,000 WattsGarage Door Opener HP400 Watts
Microwave Oven 1000W1,500 WattsDishwasher400 Watts
Toaster900 WattsComputer250 Watts
Electric Range Oven7500 WattsTV - 32" Color170 Watts
VCR60 WattsStereo System140 Watts
Clothes Iron1100 WattsElectric Clothes Dryer6000 Watts
Washing Machine1000 WattsHair Dryer1600 Watts
Air Conditioning 1 Ton2,000 WattsAir Conditioning 2 Ton3,000 Watts
Air Conditioning 3 Ton4,500 WattsWindow A/C2000 Watts
Vacuum Cleaner780 WattsCentral Vacuum1750 Watts

Appliance Calculator

[ Home I Glossary I Basics I F.A.Q. I Safety Tips I FFA Page I Lights I Ohms-Law ]