can i use this wire

What do you want to run in the van from this wire?

To small Zacc , you should have 8mm sq at least.

If you have sufficent , run 2 lengths of your 4.58mm sq in parallel.

Hi zacc

8mm2 (8 B&S) as a min. Try use 6 B&S 13.3mm3

Use 50A Anderson plugs too as the thicker cable won't fit the 7 pin trailer plug.

Regards

Derek from ABR

When you do the actual sums on voltage drop over a length of cable you will realize that you need to use VERY heavy cable for adequate charging of distant batteries, such as in a caravan or campertrailer.

Collyn Rivers' books on Motorhome and caravan electrics are very good resources in planning this.

I used 2 B&S twin core for my setup and yes, it's VERY thick, from memory 35mm sq and still have a (very) small voltage drop along that line.

Remember to factor the length including the earth return in your calculations and ensure you use excellent terminal lugs on the cable ends.

Cheers,

Mark

Hi Zacc

How far from battery to fridge including all bends?
Is frig 12v compressor or 3 way? (how many amps does it use?)
What wattage is lighting?

regards Kc

Voltage drop = Amps x length (M) x 0.017 divide by mm2.

Keep the voltage drop to 0.5v max.

Cheers,
Peter
OKA196 Motorhome