Originally Posted by
Moneyshot
Ok let me try and clear it up
If you a familiar with Phoenix wiring pre 2014- I have a Main Power Switch on/off no breaker.
From one side of that switch is a wire ( I'm guessing 4 ga could be smaller 6? it isn't marked on the wire) it runs to a single terminal post-I've seen this used as a junction post only on that post is a 20amp manual reset breaker with 3 + wires to it- assumption is one side of breaker on post, other side has the 3+ wires (manual bilge, recircs, ( Bilge and other pumps have 10amp in line fuse) and main power to all lights accessories So you have fuses coming off the breaker that total more than the breaker that is protecting it ? What size wire is feeding each appliance?.
From the other side of the switch runs the same size wire to 50amp manual reset breaker that is attached to + battery post. Doesn't make sense but will go with it.
- TO answer the question the 50amp breaker and large wire feeds the main power system to the switch directly from the battery If I'm understanding, it does it by way of a 20A breaker, so you have a 50A breaker on larger wire from the battery to the switch, then the same wire from the switch to a junction post, then a 20A breaker feeding over 40A of appliances???
I want to elminate the terminal post- connect that wire to positive post of battery using the 50 amp breaker. that is doable, but you need to know what size wire you're using, and possibly a bigger breaker depending on what the fuse block is going to be supplying.
Replace the 20 amp breaker by using the blue sea fuse block.
on the block will be -
manual bilge- has 10 amp inline fuse
recircs - 10 amp inline fuse
Power wire from dash - No visible inline fuse but I am assuming it has protection from the factory circuit near console
jack plate - 40 amp in line fuse You just named off at least 60A worth of protection, not including the wiring going to the console and considering one recirc @ 10A. You need to go back and see what is actually needed, the size wire you're protecting and see what size fuses you need. for instance, you don't want to protect a wire that handles 5A with a 10A fuse, but if the wire is designed for 10A, then a 10A fuse is fine. When you add all the appliances up, then you will know what size wire needs to be supplying the fuse block and what size breaker you need. I understand that probably won't have everything on at once, but you never know and don't want to overload the supply wiring.
I plan to match the fuses in the block with the same size as inlines Sounds like they were not matched correctly from Phoenix, or somethings have been added without consideration of supply.
Will this work like explained? I can send pics or draw it out if that would help