Specifications are subject to change. See bluesea.com/products/7605 for current information.
Supplies Needed
1. DC Wire: Black or yellow for negative, red for each positive.
NOTE:
All wiring should be of sufficient length to allow
proper routing, support, drip loops, service loops, and termination.
2. Fuse holders for connection to each battery, for charger negative, and for optional Start Isolation and Remote LED
wiring if used (see Full Installation Diagram, page 8).
3. Fuses for fuse holders (see table below and Full Installation Diagram, page 8).
4. Screwdriver: Phillips #2 for mounting screws.
5. Socket wrench (torque wrench preferred): 7/16
”
socket for DC battery positive connections. Other socket sizes as
needed for connection to battery and fuse holder terminals.
6. Terminals: 1/4” or M6 ring terminals for charger side DC battery positive connections. 1/4” x 0.032” female quick
disconnect terminals for DC battery negative and accessory connections. Other ring terminals sized for connection
to battery and fuse holder terminals.
7. Appropriately sized butt connectors for extending remote LED and battery temperature sensor wires.
8. Crimping tool or obtain wires that are pre-terminated.
9. Appropriate heat shrink if pre-terminated wires were not acquired.
Wire Size and Fuse Rating Table*
Conductor Length
in feet (meters)
Positive Wire (sized for maximum alternator output)
Negative Wire
(sized for 10A
charger output)
Alternator up to 30A
Alternator up to 50A
Alternator up to 65A
6 ft (1.83 meters)
10 AWG (6 mm²)
6 AWG (16 mm²)
6 AWG (16 mm²)
14 AWG (2.5 mm²)
10 ft (3.05 meters)
6 AWG (16 mm²)
4 AWG (25mm²)
4 AWG (25mm²)
12 AWG (4 mm²)
15 ft (4.57 meters)
6 AWG (16 mm²)
2 AWG (35 mm²)
2 AWG (35 mm²)
10 AWG (6 mm²)
20 ft (6.09 meters)
4 AWG (25mm²)
2 AWG (35 mm²)
1 AWG (50 mm²)
8 AWG (10 mm²) **
25 ft (7.62 meters)
2 AWG (35 mm²)
1 AWG (50 mm²)
1/0 AWG (70 mm²)
8 AWG (10 mm²) **
Recommended Fuse Rating ***
40A
60A
90A-100A
30A (see next row)
Fuse Required For Negative?
YES, if negative wire is
< 12 AWG (4 mm²)
YES, if negative wire is
< 8 AWG (10 mm²)
YES
-
Fuse Type
Fuse Holder PN
Recommended Blue Sea Systems Fuse PN
MRBF Fuse
5191
5176 (40A)
5178 (60A)
5182 (90A)
Not Recommended
AMI®/MIDI® Fuse
7720
5251 (40A)
5253 (60A)
5256 (100A)
5250 (30A)
ATO®/ATC® Fuse
5065
Not Recommended
Not Recommended
Not Recommended
5245 (30A)
* Based on 3% voltage drop and 105°C rated wire insulation. If fast charge recovery is important, use larger wire.
** If marine grade 8 AWG (10 mm²) 1/4" quick connect terminals are not readily available, it is recommended to make a short 10 AWG (6 mm²) jumper to a
terminal block or PowerPost, and then continue from that point with 8 AWG (10 mm²) cable.
*** Fuses in positive wires should be located as close as possible to the battery positive terminal per ABYC recommendations. If required, the fuse in the
negative wire should be located as close as possible to the charger. Fuse type selected should be verified to have a sufficient amperage interrupt capacity
(AIC) for your battery capacity.
For more information please use the Circuit Wizard at circuitwizard.bluesea.com
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