Yes that is a good idea @achjimmy this is not an area you would want general access to but it is handy to be able to get at it if needed. All the exposed terminals are low voltage, the black lead is the only 240v wire.
Setec?
- Thread starter Rodneyaf
- Start date
Yes that is a good idea @achjimmy this is not an area you would want general access to but it is handy to be able to get at it if needed. All the exposed terminals are low voltage, the black lead is the only 240v wire.
In general terms with anderson setups 30 to 40 amp breakers/fuses are common but without knowing the sizes of your wiring i could not give you a definitive answer. You are making it a bit more complicated by including the wire from the 7 pin, depending on the size of that wire then you may need to downsize the fuse to match it. If you are leaving the setec connected via the aux terminal then that will also have to be taken into account 20Amp max for the st20 and 30amp max for the st35.
Was discussing some 2nd battery/deep cycle circuits with a 4wd specialist. 6B&S is rated at 50A, but over 3meters to the rear of the car/tug, this rating drops by 50%, so best to put a 25AMP fuse on the Anderson cable near the car's battery.
If you need more than 25 amp at the VAN from the Anderson, run a heavier cable.
Also remember that you should run a negative cable to the battery to match the positive you are running to the Anderson plug. Do not rely on the lighter earth lead that is running through the 7 pin plug.
Cheers,
Rohan
If you need more than 25 amp at the VAN from the Anderson, run a heavier cable.
Also remember that you should run a negative cable to the battery to match the positive you are running to the Anderson plug. Do not rely on the lighter earth lead that is running through the 7 pin plug.
Cheers,
Rohan
I can't recall exactly but I thought 6b&s (which is 13mm sq) was rated higher than that? Anyway 6 or 8 B&S is as heavy as you need. I ran 6b&s directly to the van battery from the tug auxiliary, probably a 8m run Have never bothered to check its voltage , and tbh with solar I think its a bit less relevant. I have had the fuse out of it for a while and the batteries charge up. Fully over the course of the days drive with solar. I then ran another 6 B&S from the tugs main battery directly to the fridge (10m). Used a VSR to cut the batteries when not driving again never checked it. But something that happened last trip proved its worth. We left the fridge off for a few days, only noticed on pack up and the temp was reading about 6deg. Switched to DC and left. When we stopped about 4-6 hours later the fridge was down to -1 ! Which is a fair effort on 12V?
I was told that if use 8b&s and split the pos and neg up again (2x pos 2xneg) you can get them into the aux in a 12 pin? I just used an Anderson. As all the years I vanned with my parents and then later on with friends when chasing why the trailer lights don't work before departure it invariably came down to rooted plug due to fridge overload. Hence I like them separate.
Rohan could the specialist have been referring to 6mm cable and not 6b&s. a 25amp fuse is very conservative for 6b&s cable and most manufacturers that I have come across rate 6b&s somewhere around 130 amps. of course you would not use a fuse that large
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Yep 6mm auto is about 45 amps depending on the manufacturer. There all BS (as in cow dung) ratings anyway and it depends on the environment it's in. (Extra covering etc)
Can anyone see a problem with this modified version of @boots33 diagram? My main concern was slow battery charge due to the fridge hogging most of the power.
I currently have a portable solar panel but will be switching to a roof mounted one in the near future, I figure this will help keep everything topped up while the travelling. Setec will also get power through the 7 pin plug as this is currently wired to charge a battery in a tipper trailer.
My auxiliary battery will be in an under tray toolbox, so relatively close to the van.
Thanks in advance
Adam
I currently have a portable solar panel but will be switching to a roof mounted one in the near future, I figure this will help keep everything topped up while the travelling. Setec will also get power through the 7 pin plug as this is currently wired to charge a battery in a tipper trailer.
My auxiliary battery will be in an under tray toolbox, so relatively close to the van.
Thanks in advance
Adam