Wiring of fuse block and accessorys

Joined: 02 Jul 2007 Location: Kalgoorlie

hi all
Just wanted to seek some advice for some work to be done and cable size. I want to run a twin (pos and neg) from the engine pay. I am going fusing it with a suitable rated fuse. I then want to run to a fuse block that will have 3x seperate fuses for 12v outlets which 2 of them will be running 40 engel fridges on anmd off (1 as fridge, 1 as freezer). I am also considering running a 300w invertor occasionly so was considering running from fuse block also. I am also looking at relocating ARB (old style) compressor from under bonnet to the rear and would love to run it from the fuse panel as it would only ever go when vechile is running. My questions are as follows

1) my current dual battery setup is a ARB sure power 1314 and am looking at running all the accessory above from the aux battery leaving the main good to go for cranking and winching. Is this the best way to split accessory's?
2) What size cable should i run from battery to rear of car (toyota 100 series)
3) what size cable from fuse block to each outlet invertor and compressor?
4) Any recommendations on fuse block??

Thanks in advance
Any advice would be great.

Joined: 11 Dec 2004 Location: Queensland

Hi kalcruiser, the existing ARB isolator set up is fine.

Because of the high current draw of the inverter and the compressor you need to fit a 50 amp circuit breaker at the auxiliary battery and run 6B&S cable, as you posted, pos and neg, to the rear, to minimise voltage drop.

At the rear, it would probably be better to mount a positive and negative power post.

From the power posts, run 8B&S cable to the inverter and compressor via an in-line blade fuse holder and 50 amp Anderson plug on each cable.

The cable to the fridges could be 6mm auto via an in-line blade fuse holder and run to cigarette power sockets.

Joined: 02 Jul 2007 Location: Kalgoorlie

cheers for the reply mate im a General A grade sparky so i work in copper mm2 so can someone let me know what auto elc cable converts to in mm2???

THanks

Joined: 11 Jan 2004 Location: Adelaide

Hi kalcruiser

B&S wire sizes (Brown & Sharpe) are identical to AWG (American Wire Gauge) sizes - if that helps.

I think we've discussed comparisons here before if you're handy with the Search function, or you could Google AWG wire sizes.

If I get a chance I'll try to find some links for you.

Cheers,

Scott

Joined: 04 Apr 2008 Location: West Victoria

I wired up my troopy 12 yrs ago. I got an 8 fuse block form my local auto elec, placed it in the engine bay and wired the bottom pins to the pos on the aux battery with 10mm cable and then ran all my accessories from the top pins. I ran 8mm cable to the rear for the fridge, 8mm cable to the compressor, 6mm cable to my overhead console for the stereo, cb and uhf, and a few other plugs were also wired with 6mm cable.

From these other plugs I ran a 300w inverter for my computer and AA battery chargers etc.

This way all my fuses are in the one place and if I have an electrical problem, I don't have to look everywhere for the inline fuses.

My .02c worth.

Neale

Joined: 02 Jul 2007 Location: Kalgoorlie

Hi guys
All the gear has rocked up for the job. Started running large feed to back and found it difficult so far using the corri tube for the protection. Is it ok not to use it as it is double insulated flex but it will runnnig next to the main wiring lume any comments would be great as im keen to continue job

Thanks all

Joined: 04 Apr 2008 Location: West Victoria

It may be a PITA but you are only doing it once.

I have had a battery cable rub through and it set the car on fire, so unless you are going to continually inspect the cable, I would continue.

Good luck with the job.

Neale

Joined: 02 Jul 2007 Location: Kalgoorlie

thanks for the quick reply mate. I thought this would be the case the 100 series do not allow bugger all room through the firewall grommit either so i may even need to drill another hole!!!!

Joined: 04 Apr 2008 Location: West Victoria

Rather than sliding a length of corrie through the fire wall, cut a small piece and put it through the fire wall, then slide the cable through that.

After that just overlap the corrie on either side of the fire wall and cable tie it together.

Neale

Joined: 21 Sep 2006 Location: Jabiru

http://www.traxide.com.au/SC80PCWK_Info.html

More drawings on the site.