Dougyfresh
New Member
What wire size for batteries to inverter. 24 v inverter and battery.
Wire size
- Thread starter Dougyfresh
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mib
New Member
this is usually written in the instructions for the inverter, mine is 2AWG 30 squares, the machine recommends 160 amps, I bought 200 and a cable of 35 squares
plus and minus are the same length and as short as possible
plus and minus are the same length and as short as possible
Any name you wish
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Depends on the possible load output of the inverter and distance from battery to inverter. For example: 24V 2000W inverter should pull max 83.3A constant. You would need to use a cabling chart to determine what total length of cable (to and from) you need, and use the appropriate size. Here is a 24V chart.
So for the system setup, You Can use at little at 8 AWG as long as you keep the length of greater than 10 feet. There are different charts online so use best practices for your wire guides. Always oversize if possible.
So for the system setup, You Can use at little at 8 AWG as long as you keep the length of greater than 10 feet. There are different charts online so use best practices for your wire guides. Always oversize if possible.
John Frum
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What is the continuous watt rating for the inverter?
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MichaelK
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Let me give you a formula so you can figure it out for yourself. Let's suppose your inverter outputs a maximum of 3000W. To draw 3000W out of your 24V battery the inverter needs to pull at least.....
3000W/24V = 125A
Now go to this chart (off Wikipedia) and find 125A. At the lowest temperature rating of 60C, you have to have at least 1/0 gauge COPPER wire to safely handle 125A without the wire getting too hot.
Keep in mind that there are inverter inefficiencies that might cause it to draw a bit more than 125A, so it's a good idea to bump up the wire size one gauge for an extra safety margin. So, select 2/0 wire for a 3000W inverter. Replace the 3000W number with that of your inverter to fine-tune the wire size for your personal system.
3000W/24V = 125A
Now go to this chart (off Wikipedia) and find 125A. At the lowest temperature rating of 60C, you have to have at least 1/0 gauge COPPER wire to safely handle 125A without the wire getting too hot.
Keep in mind that there are inverter inefficiencies that might cause it to draw a bit more than 125A, so it's a good idea to bump up the wire size one gauge for an extra safety margin. So, select 2/0 wire for a 3000W inverter. Replace the 3000W number with that of your inverter to fine-tune the wire size for your personal system.
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