21 replies to this topic

[CreekRob]

IIRC 3.2mm x-section (minus insulation) would be about 8 gauge. I also think FWC used to use 10AWG wire in pre-lithium installs. 10AWG could do 30A, but you need to check the circuit protection too. I might want to go bigger, as Jack notes. Good opportunity to make sure everything is ship shape.

 

And put the DCDC in the camper. Doesn't it do BT? if that's so you're paying for that feature and odds are you'll be checking it in the camper anyway.

 

I don't know if you've settled on that Victron, but a benefit of the Kisae or Redarc DCDC units is that they incorporate a solar controller, which can be handy if you every want to incorporate solar.

[Edgewood]

I am replacing the 10 gauge wire between truck and Orion DC to DC charger. I installed a 30 amp fuse near the truck battery and another just before the charger in the camper. The new line is 6 gauge. Currently there is 8 gauge wire and 30 amp fuse between the Orion charger and house battery. Should I replace that with 6 gauge wire and another 30 amp fuse?

[Vic Harder]

I am replacing the 10 gauge wire between truck and Orion DC to DC charger. I installed a 30 amp fuse near the truck battery and another just before the charger in the camper. The new line is 6 gauge. Currently there is 8 gauge wire and 30 amp fuse between the Orion charger and house battery. Should I replace that with 6 gauge wire and another 30 amp fuse?

How long is that section of 6g between the Orion and the house battery?

[Edgewood]

Only a foot. I really appreciate your information Vic. It has really helped me take this project on. 

 

8 gauge between house and Orion new 6 gauge between truck and Orion.

Edited by Edgewood, 21 August 2023 - 02:18 AM.

[Vic Harder]

a foot?  no need to change the wire.  No need for a fuse on that short section either.

 

You are most welcome.... keep asking questions!

[Jon R]

I am replacing the 10 gauge wire between truck and Orion DC to DC charger. I installed a 30 amp fuse near the truck battery and another just before the charger in the camper. The new line is 6 gauge. Currently there is 8 gauge wire and 30 amp fuse between the Orion charger and house battery. Should I replace that with 6 gauge wire and another 30 amp fuse?

The Orion 12/12-30 has an output of 30 amps, but it will draw 35 amps or so from the truck during bulk charging. You may find you need to increase the fuse size from the 30 amps you mentioned.

[Edgewood]

Thanks Jon. I actually used a Blue Sea System 7182 40 amp fuse that was mentioned earlier. I put another one just before the house battery. I was admiring my cable work today and noticed that I completly bypassed the fuse. GRRR.  

 I now just need to install a Anderson plug mount in the truck bed to accept the new Anderson plug.

[Vic Harder]

oh, and another reason to stick to 6g inside is that I believe the largest size cable that Victron gear will accept is 6awg.

[CougarCouple]

My electronics love big AWG.

Shocking I know.

,)

[Vic Harder]

My electronics love big AWG.

Shocking I know.

,)