14 | SAMLEX AMERICA INC. SAMLEX AMERICA INC. | 15
SECTION 2 | General Information
TABLE 2.1: INVERTER SIZING FACTOR
Type of Device or Appliance
Inverter
Sizing Factor
(See note 1)
Air Conditioner / Refrigerator / Freezer (Compressor based) 5
Air Compressor 4
Sump Pump / Well Pump / Submersible Pump 3
Dishwasher / Clothes Washer 3
Microwave (where rated output power is the cooking power) 2
Furnace Fan 3
Industrial Motor 3
Portable Kerosene / Diesel Fuel Heater 3
Circular Saw / Bench Grinder 3
Incandescent / Halogen / Quartz Lamps 3
Ceramic/ Positive Temperature Coefcient (PTC) type of heaters 5
Laser Printer / Other Devices using Infrared Quartz Halogen Heaters 4
Switch Mode Power Supplies (SMPS): no Power Factor correction 2
Photographic Strobe / Flash Lights 4 (See Note 2)
NOTES FOR TABLE 2.1
1. Multiply the Rated Continuous Running Power Rating of the appliance / device by the
recommended Sizing Factor to arrive at the Rated Continuous Running Power Rating
of the inverter.
2. For photographic strobe / ash unit, the Surge Power Rating of the inverter should be
> 4 times the Watt Sec rating of photographic strobe / ash unit.
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