Generator Selection Guide and Applications Chart

A fundamental problem in selecting an engine-driven generator is to determine the power (kilowatt) requirements. Undersizing of the equipment can be avoided by considering all of the loads that will be connected to the generator and by determining the starting requirements of all electric motors.

To determine the right size generator, add the total watts of all lights, appliances, tools or other equipent to be connected to the generator. Check the nameplates to determine wattage. If wattage is not shown, but amps and volts are given, the following simplified formula may be used: (Amps x Volts = Watts) Example: 12.5 Amps x 120 Volts = 1500 Watts. The chart shown below will help you in selecting the proper size generator. For portable electric tools and equipment, check the nameplate rating or use the chart for average requirements. Remember your Baldor Generator is capable of momentarily supplying 150% of its nameplate rating for motor starting applications. This will assist starting the electric motor while the current demand is heaviest.

HOME Generator Applications Starting Wattage Requirements Air Conditioner-Central 24,000 BTU 3300 40,000 BTU 7800 Air Conditioner-Window 10,000 BTU 3000 24,000 BTU 6000 Clothes Dryer Gas 2200 Electric 7550 Coffeemaker 1750 Computer 500-1200 Dehumidifier 1450 Dishwasher 2100-2850 Electric Range 1500-6000 Fan Attic 350 Window 100-200 Furnace 1/6 HP Fan 1250 1/3 HP Fan 2100 Light Bulbs As marked on bulb Microwave Oven 625 Watt Power 2500 850 Watt Power 3200 Radio 50-200 Refrigerator 3100 Sump Pump 1/3 HP 2150 1/4 HP 3200 Television 300 Water Heater 4500 per element Well Pump 1/3 HP 2150 1/5 HP 3100

COMMERCIAL Generator Applications Starting Wattage Requirements Air Compressor 1/2 HP 2000 1 HP 3500 2 HP 6500 Drill 1/4" 400 3/8" 600 1/2" 900 Grinder Bench, 8" 2500 Hammer Demolition 3300 Rotary 3300 Impact Wrench 1/2" 1200 3/4" 1400 1" 2400 Pressure Washer 1 HP 3500 1 1/2 HP 5000 3 HP 9000 Pump, Submersible 3/4 HP 3000 1 HP 3500 Sander, Belt 1600 Saw, Chain 12" 1800 14" 2200 Saw, Circular 6 1/2" 1200 8 1/4" 3000