Specifications are subject to change. See bluesea.com/products/7604 for current information.
5
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.
LED Status Indicators
Name
States
AC POWER
Green solid
AC power present
Off
No AC power
BATTERY
Green solid
Charging complete – Float/rest stage
Amber solid
Charging in progress - Bulk or absorption stage
Red single blink
Battery hot - Charger shutdown (>=50°C)
Red double blink
Battery hot – Output reduction (>=45°C and <50°C)
Red triple blink
Battery cold – Charger shutdown (<= 0°C)
Red solid
Battery polarity reversed
Off
No AC power
ACR STATUS
Green solid
Combined – ACR closed
Double-blink
SI present – ACR open
Off
Battery voltages below threshold – ACR open
REMOTE LED
CHARGE
STATUS
DC Power
Solid Combined – ACR closed
Off
Separated – ACR open
AC Power
Solid Charging complete – Float/rest stage
Flash Charging in progress - Bulk or absorption stage
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. 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. If required, the fuse in the negative wire should be located
as close as possible to the charger.
For more information please use the Circuit Wizard at circuitwizard.bluesea.com