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Welding Hardgoods Approximate Power Requirements for Contactor and Farm/Home Equipment Printer-Friendly Page Contractor Equipment Rating Starting Watts Running Watts Hand Drill 1/4 in 350 350 3/8 in 400 400 1/2 in 600 600 Circular Saw 6 1/2 in 500 500 7 1/4 in 900 900 8 1/4 in 1400 1400 Table Saw 9 in 4500 1500 10 in 6300 1800 Band Saw 14 in 2500 1100 Bench Grinder 6 in 1720 720 8 in 3900 1400 10 in 5200 1600 Air Compressor 1/2 HP 3000 1000 1 HP 6000 1500 1 1/2 HP 8200 2200 2 HP 10500 2800 Electric Chainsaw 1 1/2 HP, 12 in 1100 1100 2 HP, 14 in 1100 1100 Electric Trimmer Standard 9 in 350 350 Heavy Duty 12 in 500 500 Electric Cultivator 1/3 HP 2100 700 Electric Hedge Trimmer 18 in 400 400 Flood Lights H/D 125 100 Metal Halide 313 250 Mercury 1000 - Sodium 1400 - Vapor 1250 1000 Submersible Pump 400 gph 600 200 Centrifugal Pump 900 gph 900 500 Floor Polisher 3/4 HP, 16 in 4500 1400 1 HP, 20 in 6100 1600 High Pressure Washer 1/2 HP 3150 950 3/4 HP 4500 1400 1 HP 6100 1600 55 Gallon Drum Mixer 1/4 HP 1900 700 Wet/Dry Vacuum 1.7 HP 900 900 2 1/2 HP 1300 1300 Farm/Home Equipment Rating Starting Watts Running Watts Stock Tank-Delcer 1000 1000 Grain Cleaner 1/4 HP 1650 650 Portable Conveyer 1/2 HP 3400 1000 Grain Elevator 3/4 HP 4400 1400 Milk Cooler - 2900 1100 Milker (Vacuum Pump) 2 HP 10500 2800 Farm Duty Motors 1/3 HP 1720 720 Standard (e.g. Conveyors, Feed Augers, Air Compressors) 1/2 HP 2575 975 3/4 HP 4500 1400 1 HP 6100 1600 1 1/2 HP 8200 2200 2 HP 10550 2850 3 HP 15900 3900 5 HP 23300 6800 High Torque (e.g. Barn Cleaners, Silo Uploaders, Silo Hoists, Bunk Feeders) 1 1/2 HP 8100 2000 5 HP 23300 6000 7 1/2 HP 35000 8000 10 HP 46700 10700 3 1/2 Cu. Ft. Mixer 1/2 HP 3300 1000 High Pressure Washer(1.8 GPM, 2 GPM, 2 GPM) 500 PSI 3150 950 550 PSI 4500 1400 700 PSI 6100 1400 Refrigerator or Freezer - 3100 800 Shallow Well Pump 1/3 HP 2150 750 1/2 HP 3100 1000 Sump Pump 1/3 HP 2100 8000 1/2 HP 3200 1050