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 Coefficient (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 / flash unit, the Surge Power Rating of the inverter should be
> 4 times the Watt Sec rating of photographic strobe / flash unit.