What gauge wire would you recommend for a powermaster 75 amp unit with external regulator. I seen 10 gauge on mads site but also was told you should run a 8 gauge. Also do you have any recommendations on a fuse holder and a part number that would work with it and should it be mounted just before the battery. Thanks guys
Wire Gauge
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rednesss
Well-Known Member
I would go with 8 gauge, you can get a maxi-fuse holder but I wouldn't. Just run the wire as short as possible and protect it with wire braid.
67Dart273
Well-Known Member
Either 8 or two-three 10 ga in parallel. The thing about 10 in parallel is you can easily find terminals and wire.
HOWEVER when you say "powermaster" and "external" are you talking about a firewall mount regulator, or the one they sell with the regulator hanging onto the alternator?
If the latter, this is more like a "one wire" meaning the sense terminal is right there at the alternator
In that case you want a VERY low resistance path to the battery. If you still have stock wiring (ammeter), "that ain't it"
HOWEVER when you say "powermaster" and "external" are you talking about a firewall mount regulator, or the one they sell with the regulator hanging onto the alternator?
If the latter, this is more like a "one wire" meaning the sense terminal is right there at the alternator
In that case you want a VERY low resistance path to the battery. If you still have stock wiring (ammeter), "that ain't it"
Woods74
Broke Senior
Rather have it and not need it, then need it and not have it.
67Dart273
Well-Known Member
That's always been my motto, except I cannot afford it!!!
On the basic wire arounds I've built, I use 8ga with a 12ga fusible link.
I could also build something with a Maxi fuse. Once you start getting up in amps, the availability of compact fusing solutions is reduced.
I could also build something with a Maxi fuse. Once you start getting up in amps, the availability of compact fusing solutions is reduced.
Does the same thing, not as servicable.
Hey guys...made a mistake, was ordering a 75amp and ended up with a 95 amp. Can you guys give me an idea on the gauge size and fuse. Oh and your headlight wiring kit went in like a charm Rob. Oh and the voltage regulator is a newer electronic version mounted on the firewall. Alternator is the newer square back with external and 3-wire built by powermaster in black. Will be running wire direct to battery and prefer a fuse as to a fusable link
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