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Average Wattage Guide for Contractors and Homeowner Tools
| Contractor |
Running
Wattage
Requirements |
Starting
Wattage
Requirements |
| Air Compressor |
| 1/2 Horsepower |
1000 |
2000 |
| 1 Horsepower |
1500 |
4500 |
| 1 1/2 Horsepower |
2200 |
6000 |
| 2 Horsepower |
2800 |
7700 |
| Bench Grinder |
| 6 inches |
720 |
1000 |
| 8 inches |
1400 |
2500 |
| 10 inches |
1600 |
3600 |
| Electric Cultivator |
| 1/3 Horsepower |
7000 |
1400 |
| Electric Hedge Trimmer |
| 18 inches |
400 |
0 |
| Electric Line Trimmer |
| Standard, 9
inches |
350 |
0 |
| Heavy-duty, 12 inches |
500 |
0 |
| Drum Mixer, 55 gallons |
| 1/4 Horsepower |
700 |
1200 |
| Flood Lights |
| (HID, Metal Halide, Mercury
Vapor or Sodium Vapor |
250 |
63 |
|
Watts per Bulb |
400 |
100 |
| 1000 |
250 |
| Floor Polisher |
| 16 inches, 3/4
Horsepower |
1400 |
3100 |
| 20 inches, 1 Horsepower |
1600 |
4500 |
| Hand Drill |
| 1/4 inch |
350 |
0 |
| 3/8 inch |
400 |
0 |
| 1/2 inch |
600 |
0 |
| High-pressure Washer |
| 5/8 Horsepower |
900 |
2700 |
| 1 Horsepower |
1200 |
3600 |
| 1 1/2 Horsepower |
1450 |
4300 |
| 3 Horsepower |
3125 |
9300 |
| Submersible Pump, 400 gph |
200 |
400 |
| Centrifugal
Type, 900 gph |
500 |
400 |
| Wet and Dry Vac |
| 1.7 Horsepower |
900 |
0 |
| 2 1/2 Horsepower |
1300 |
0 |
| Saws: |
Worm Drive, 7 1/4 inches
(Skill Saw) |
1800 |
2600 |
| Band Saw, 14
inches |
1100 |
1400 |
| Circular Saw, Heavy-duty |
| 6 1/2 inches |
800 |
1200 |
| 7 1/4 inches |
1400 |
2300 |
| 8 1/4 inches |
1800 |
3000 |
| Electric Chainsaw |
| 12 inches, 1/2
Horsepower |
900 |
0 |
| 14 inches, 2 Horsepower |
1100 |
0 |
| Table Saws |
| 9 inches |
1500 |
3000 |
| 10 inches |
1800 |
4500 |
| Miter Saw 10 amp |
1100 |
2000 |
| Miter Saw 15
amp |
1650 |
3000 |
| Heavy-duty Sawzall |
750 |
1400 |
| Drills |
| 1/4 inch 3 amps |
300 |
400 |
| 3/8 inch 4 amps |
440 |
600 |
| 1/2 inch 5.4 amps |
600 |
900 |
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| Motors |
Running
Wattage
Requirements |
Starting
Wattage
Requirements |
| Split Phase |
| 1/8 Horsepower |
300 |
500 |
| 1/6 Horsepower |
500 |
725 |
| 1/4 Horsepower |
600 |
1000 |
| 1/3 Horsepower |
700 |
1400 |
| 1/2 Horsepower |
875 |
2300 |
| Capacitor Start
Induction Run |
| 1/3 Horsepower |
720 |
1300 |
| 1/2 Horsepower |
975 |
2100 |
| 3/4 Horsepower |
1400 |
3100 |
| 1 Horsepower |
1600 |
4500 |
| 1 1/2 Horsepower |
2200 |
6000 |
| 2 Horsepower |
2850 |
7700 |
| 3 Horsepower |
3900 |
12,000 |
| 5 Horsepower |
6800 |
16,500 |
| Fan Duty |
| 1/8 Horsepower |
400 |
600 |
| 1/8 Horsepower |
550 |
850 |
| 1/8 Horsepower |
650 |
1200 |
| 1/8 Horsepower |
800 |
1600 |
| 1/8 Horsepower |
1100 |
2400 |
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