MAD Electrical design question

[67 455 Bird ragtop]

I've been looking at some of the updates Mark recommends for electrical systems. Most make sense and I plan to take his advice. Except for one area. I've never been a fan of fusible links. So I'd like to use a large fuse instead. But I'm curious as to what size to use. Specifically in the two locations I have labeled A and B. Any thoughts ???

[DynoDon]

In 'A' I use a 50 amp with holder from Painless

[CreepinDeth]

I bought the entire kit from MAD Electrical too.
I don't feel comfortable using the fusible links at all either. I had a very bad experience in my newb classic car owning days with fusible links. Most modern setups don't utilize them from what I understand either. Mark basically said he'd rather have it disconnect, then have a fuse fail and start a fire.

Me personally , I'm using resettable circuit breakers instead. Then I have the benefit of turning them back on without having to have a fuse handy all the time. http://www.wiringproducts.com/contents/en-us/d11.html

[67 455 Bird ragtop]

I bought the entire kit from MAD Electrical too.
I don't feel comfortable using the fusible links at all either. I had a very bad experience in my newb classic car owning days with fusible links. Most modern setups don't utilize them from what I understand either. Mark basically said he'd rather have it disconnect, then have a fuse fail and start a fire.

Me personally , I'm using resettable circuit breakers instead. Then I have the benefit of turning them back on without having to have a fuse handy all the time. http://www.wiringproducts.com/contents/en-us/d11.html

What sizes did you use ??

[CreepinDeth]

"Under the title of "Power & Ground Cable Specs" this url shows recommended wire sizes for various amp ratings. The fusible link that protects the wire should then be two gauge sizes (or four numbers larger). For example, use 10 gauge wire to handle the amperage, and a 14 gauge fusible link to protect it from overloading."

http://www.the12volt.com/info/recwirsz.asp

The simple answer is:
For A it's 10 gauge power wire, which handles a maximum of 60 amps.
So that would dictate 60Amp breaker. You can choose an auto resetable, or manual reset.
Manual reset is the safer route if you're worried about it.

I used a 30 amp auto resetable circuit breakers for my Taurus electric fan upgrade too.
It runs flawlessly. This is obviously assuming you're using BOTH speeds, not just the high speed.

[67 455 Bird ragtop]

Thanks Creepin .. GREAT link and info. This will help me out a TON...

[BOBBYA312]

Right good info Thanks