daveturnbull Posted May 25, 2016 Share Posted May 25, 2016 Seems only sensible. I'll get a mega fuse holder with ring terminals to do the job, but what size fuse would be sensible to use? Assume a fairly standard setup, with radio. Other accessories (spot lights, ARB compressor, eberspacher) will be separately fused. Quote Link to comment Share on other sites More sharing options...
honitonhobbit Posted May 25, 2016 Share Posted May 25, 2016 I use the rather snazzy but waterproof audio circuit breakers from 12 Volt Planet they do 30 to 700amp. I sat down with a pencil and worked out the maximum draw on the two systems - aux and main, then rounded it up a tadge Quote Link to comment Share on other sites More sharing options...
daveturnbull Posted May 25, 2016 Author Share Posted May 25, 2016 These ones? They do look rather snazzy. So what number did you pick for your main circuit then? To save me working it all out.... (lazy, I know) Quote Link to comment Share on other sites More sharing options...
pete3000 Posted May 25, 2016 Share Posted May 25, 2016 Seems only sensible. I'll get a mega fuse holder with ring terminals to do the job, but what size fuse would be sensible to use? Assume a fairly standard setup, with radio. Other accessories (spot lights, ARB compressor, eberspacher) will be separately fused. How big is the wire downstream? before it leaves for the other fused feeds? Quote Link to comment Share on other sites More sharing options...
daveturnbull Posted May 25, 2016 Author Share Posted May 25, 2016 How big is the wire downstream? before it leaves for the other fused feeds? Not sure, just the standard defender 'main live into the dash' wire. Quote Link to comment Share on other sites More sharing options...
pete3000 Posted May 25, 2016 Share Posted May 25, 2016 I added a twin mega fuse block to the bulkhead when i did the 300tdi conversion for this reason, I'd have to dig the circuit diagram of which fuse is which as the main brown into the dash area was previously unfused. I tried to replicate the later blade fuse wiring aux fusebox from the 300tdi era The fuses I have fitted are 60A and 80A fed from the starter motor one feed is 80A the other is 60A protected. Think the wire is 4 or 6mm from memory Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted May 25, 2016 Share Posted May 25, 2016 On the 127 I took a flying guess from the size of the wires and put two 20A fuses in (as there's two brown wires feeding the main loom). Quote Link to comment Share on other sites More sharing options...
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