Battery cable size

[canadianintruder]

I could use some help. I have 2 EG4 18k hybrid inverters. I'm interested in the Ruixu 10 slot battery cabinet and want to know what others have used for battery cables?

 

[OffGridForGood]

The EG4 18kPV is a 12kW inverter, using a 48v battery
12,000/48v = 250A
you can check an online calculator for DC cable sizing - be sure to use the cable temperature rating.
It may be best to upsize one ga. from the calculator.
I used 2/0 welding cables to each of my 6kW inverters for example.

 

[DIYrich]

Each 18kpv is 250 amps to/from the battery. If you have one cable from the cabinet, you will need a wire capable of 500 amps to serve both 18kpv's.

 

[Norm Doyle]

Each 18kpv is 250 amps to/from the battery. If you have one cable from the cabinet, you will need a wire capable of 500 amps to serve both 18kpv's.

I have a similar setup, and when I use one of those calculators it tells me AWG Unknown, Cable current limit exceeded. What am I doing wrong? Here are the parameters I entered.
48v, 250amps,10 feet in length

 

[Suijkerbuijk]

I have a similar setup, and when I use one of those calculators it tells me AWG Unknown, Cable current limit exceeded. What am I doing wrong? Here are the parameters I entered.
48v, 250amps,10 feet in length

Not.


Current (Amp.) x distance x 0.2 = cable mm2 (square-millimeter) (meter not feet )
Easy to do
But understand its base on 12 volt.
So you have : by 4 for 48 volt after the calculation in mm2
So in your case
250×3×0,2÷4=37.5 mm2 (no 37.5 mm2 so you go up) 50mm2 cabels = awg 1/0.

Personal i go for 70mm2 = awg 2/0


One other thing you can use its again base on 12 volt.
50mm2 x 4.5 (60 celcius) = 225amp on 12 volt 1meter ( but only use for max 1meter .)

This one like to work

Kabel dimensionering for 12V, 24V og 48V systemer

Humm so a 35mm2 cable will be fine
Well i stay with my own calculation.
Special with 24/7 use on full power.