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We recommend you to buy the power inverter 1500w. We should give some thought to a larger one, as there will likely be
a time when you wish you'd bought a bigger model... in this example, you might decide you'd like to run a fan while you
compute, or let the kids watch TV.
Sometimes devices like a motor, it need more power at startup (peak power) although after the motor is running use
continuous power. This is important to consider. For example, an air conditioner, refrigerator may need startup-power
from 3 to 7 times of the continuous power. The best procedure is to find out about the current requirement of the device
to be connected to the inverter. Normally this information is in the device specifications.
What is meant by the terms "continuous-2000 watts" and "peak surge-4000 watts" is that some appliances or tools, such
as ones with a motor, require an initial surge of power to start up ("starting load" or "peak load"). Once started, the tool
or appliance requires less power to continue to operate ("continuous load")
Example:
If you have a refrigerator with a continuous load of 3 amps and a startup load of 8 amps:
3 amps x 120 volts = 360 watts continuous
8 amps x 120 volts = 960 watts continuous
In this case you should use an inverter with 1500W.
12. HOW TO CHOOSE THE PROPER CABLE?
Inverters should be attached directly to the battery. The wire size depends on the distance between the battery and
inverter.
The following is a reference to the cable size of the battery recommended by the DC12V system inverter. (DC24V system
inverter Cable Section Area /2)
300W continuous load
1 – 3ft Cable 11AWG
3.5 – 5ft Cable 8AWG
5.5 – 13ft Cable 7AWG
600W continuous load
1 – 3ft Cable 9AWG
3.5 – 5ft Cable 6AWG
5.5 – 13ft Cable 5AWG
1000W continuous load
1 – 3ft Cable 6AWG
3.5 – 5ft Cable 5AWG
5.5 – 13ft Cable 3AWG
1200W continuous load
1 – 3ft Cable 5AWG
3.5 – 5ft Cable 4AWG
5.5 – 13ft Cable 3AWG
1500W continuous load
1 – 3ft Cable 5AWG
3.5 – 5ft Cable 4AWG
5.5 – 13ft Cable 2AWG
2000W continuous load
1 – 3ft Cable 5AWG
3.5 – 5ft Cable 2AWG
5.5 – 13ft Cable 1/0AWG
3000W continuous load
1 – 3ft Cable 3AWG
3.5 – 5ft Cable 0AWG
5.5 – 13ft Cable 2/0AWG
3500W continuous load
1 – 3ft Cable 2AWG
3.5 – 5ft Cable 0AWG
5.5 – 13ft Cable 2*1AWG
5000W continuous load
1 – 3ft Cable 2/0AWG
3.5 – 5ft Cable 2*1AWG
>5ft Not recommended
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