• Refrigerator/freezers
• Small microwave ovens
• Household appliances
• Dry and/or wet/dry vacuums
• Heavy duty power tools & chargers
• Sump pumps, motors and other electric-powered equipment
Most electrical tools, appliances and audio/video equipment have labels that show the unit’s power consumption in
amps, watts, or both. To avoid inverter shutdown and possible damage to the inverter, avoid exceeding the wattage
rating of this unit. To obtain a rough estimate of the current (in amperes) the power source must deliver where
the power consumption of the tool or device is given in watts AC, simply divide the power consumption of the
load by 10. Example: If a load is rated at 200 watts AC, the power source must be able to deliver: 200 divided
by 10 = 20 amperes.
The inverter has built-in overload protection so that if you do exceed the inverter’s output capacity continuously,
the unit will automatically shut down. Once the excessive load is removed, the inverter can be restarted and
resume normal operation.
Note:
To restart the inverter, turn it off, and then on again. The on/off Switch is located on the unit’s
Front Panel (refer to the “Control and Functions” section of this Instruction Manual).
The inverter powers resistive loads the easiest; however, larger resistive loads, such as electric stoves or
heaters, could draw more wattage than the inverter can deliver on a continuous basis.
CAUTION: TO REDUCE THE RISK OF PROPERTY DAMAGE:
Ensure that total continuous power consumption of all tools and/or appliances connected to the inverter (and in
use) does not exceed the inverter’s continuous watts rating. Also ensure that start-up wattage for inductive
loads does not exceed peak watts for more than a second.
Appliances such as microwave ovens will normally draw more than their rated current and could possibly
overload the inverter when operating simultaneously with other appliances. For example: A 600 watt
microwave oven draws approximately 940 watts.
The following chart shows the approximate amperage and corresponding wattage at 120 volts AC for various
common tools and appliances.
APPLIANCE CONSUMPTION IN AMPS AND WATTS CHART
APPLIANCE AMPS@ WATTS@
120VAC 120VAC
Laptop Computer 0.45 55
Household Power Mixer 1.83 220
240-Watt Stereo/Amplifier 2.01 242
Refrigerator 2.75 330
3/8" Variable Speed Drill 2.75 330
Variable Speed Jig Saw 2.75 330
10-Speed Blender 2.93 352
Belt Sander 3.11 374
3/8" Reversible Drill 3.20 385
Household Food Processor 3.30 396
Computer and Monitor 3.66 440
Portable Vacuum 4.21 506
8-Cup Coffee Maker 5.04 605
Electric Trimmer 5.04 605
1/2" Hammer-Drill 5.04 605
Reciprocating Saw 5.50 660
Vacuum Cleaner 6.60 792
1-1/8" Rotary Hammer 7.15 858
1/6 H.P. Submersible Sump Pump 7.33 880
Compact Microwave Oven 7.91 935
10" Bench Saw 12.50 1500
5
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