After conversations with tech support at Blue Sea Systems and a visit to the local Trojan Battery
dealer I've once again updated this diagram.
1. I've changed the fuse size on the 4 AWG cables
for the ACR to 100 amp.
2. I've added an LED indicator light. There is no negative for this light. The negative is instead supplied by the neg/ground wire beside it.
3. The neg/ground is fused (as it was in the last two versions of the diagram). The reason Blue Sea recommends a fuse on this wire is that it offer protection in the event of a catastrophic failure (which has not happened, but theoretically could).
4. I've added a note about the Starting Isolation. This is usually unnecessary for outboards on sailboats, according to Blue Sea. Thus, I will only add this if it proves necessary.
Engineering recommends that a 50 amp fuse be placed within 18 inches of the battery
. I described my setup with the terminal fuse on the bus bar at a distance of 4.5 ft from the battery and was told that this was okay.
1. I've changed the 1/0 AWG, which joins the two House Bank batteries in series, to 1 AWG. This makes the starting circuit all one gauge (except for the 4 AWG outboard
2. Two Trojan T-105s or T-125s (which are identical in dimensions) fit well inside the Noco Dual 6V Battery Box
. More importantly, the Terminal Fuse Block (that I plan to use on the House Bank) leaves enough room for the lid on the Noco Box to shut. The Trojan terminals I tested were LPT (Low Profile Terminals).
3. The Trojan LPT terminals are 5/16 inch, whereas the Blue Sea Systems Terminal Fuse Blocks are 3/8 inch. Nevertheless, there was enough space at the base of the LPT terminals for the ring to make full contact.
1. I am still in doubt about the fusing of the House and Reserve with 175 amp terminal fuses
. Not sure if these are two big or two small.
2. Still unsure about the placement of an ANL fuse in the 10 ft run from the motor
to the battery switch. The issue is that I have a mixture of 4 AWG and 1 AWG.
Would really appreciate some help from the forum with these final questions.