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[Andy B]

.....
It was originally to power the trailer lights through a relay box, IIRC. .....

The wiring is there for the 12N so why would you need to use a relay box?  :-/
The red wire in the socket in the boot is fed from fuseway 29 which according to the handbook is 'Terminal 30: constant current for caravan/trailer' .... and it's only 20 amps   

[Kevin Wood]

2.5mm thinwall is a bit marginal at 30 amps IMHO, especially as it's a run as long as the car and you want minimum voltage drop because you're going to continue through the caravan. 

Then again, are you actually going to pull that much, and is battery charging an issue?

Kevin

[Andy B]

2.5mm thinwall is a bit marginal at 30 amps IMHO, especially as it's a run as long as the car and you want minimum voltage drop because you're going to continue through the caravan. 

Then again, are you actually going to pull that much, and is battery charging an issue?

Kevin

The fuse should be 20A!

[Kevin Wood]

The wiring is there for the 12N so why would you need to use a relay box?  Undecided
The red wire in the socket in the boot is fed from fuseway 29 which according to the handbook is 'Terminal 30: constant current for caravan/trailer' .... and it's only 20 amps  Thumbs Up!  Thumbs Up!

I remember reading somewhere that the Vauxhall loom contained relays. :-/ Maybe that was rubbish. Must have been, thinking about it, because the brake lights and indicators clearly have to be directly driven to make the bulb failure devices work.

Kevin

[Kevin Wood]

2.5mm thinwall is a bit marginal at 30 amps IMHO, especially as it's a run as long as the car and you want minimum voltage drop because you're going to continue through the caravan. 

Then again, are you actually going to pull that much, and is battery charging an issue?

Kevin

The fuse should be 20A!

That's more like it. I was going on the figure mentioned by hercules.

Kevin

[sexydaz]

i didnt get a handbook with the car but ive seen on here the fuse layout and it said 30 amp to feed trailer im assuming that is the fuse to put power down to the plug,but as said before if the wire in that loom is puny i wouldnt want to power my fridge with it

[Andy B]

i didnt get a handbook with the car but ive seen on here the fuse layout and it said 30 amp to feed trailer im assuming that is the fuse to put power down to the plug,but as said before if the wire in that loom is puny i wouldnt want to power my fridge with it

clicky Page 187 ..... infact this 'book' says 10 Amps  :-/
The only mention of 30 is the terminal number. 

[sexydaz]

its the terminal 30 yes not 30 amps silly me

[deltaman]

Thanks to all, we use the fridge on the move as we load it up before we set off, the battery charging is good as the van is in store and if it is left for awhile it drops a little, we take it off in the winter.

I will set about getting the bits this weekend. Once again many thanks.

[Ken T]

is it possible to get just the plug from somewhere ?. My local vauxhall want to sell me the whole wiring set for £50. 

Ken

[Andy B]

is it possible to get just the plug from somewhere ?. My local vauxhall want to sell me the whole wiring set for £50. 

Ken

If you went to a scrap yard armed with a set of snips, you'll find a similar plug & socket in the passenger side rear pillar of an Astra G estate - above the light unit  I'm sure you could make yourself a plug & loom   

[Ken T]

Thanks Andy, I will have a look next time I find a decent scrapyard.

Ken