Blue Sea Systems - 2015 Catalog

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134
A P P E N D I X
0.730" (18.6mm)
0.625"
(15.87mm)
1.360" (34.54mm)
1.09" (27.8mm)
1.617" (41.07mm)
2.700" (68.58mm) 2.750" (69.85mm)
3.185" (80.91mm)
0.79" (20mm) 0.642"
(16.31mm)
1.25" (32.00mm)
0.25"
(6.35mm)
0.196"
(5.00mm)
0.25"
(6.35mm)
0.480"
(12.19mm)
0.430"
(10.92mm)
0.750"
(19.10mm)
1.155"
(29.34mm)
0.750"
(19.05mm)
0.906"
(23.00mm)
1.310"
(33.27mm)
0.750"
(19.05mm)
STEP 2 Choose the Correct Fuse and Fuse Amperage
L E G E N D
Outside
Engine
Room
Inside
Engine
Room
.25A to 30A 1A to 30A 30A to 80A 30A to 200A 30A to 300A 225A to 400A 35A to 400A
4|0
AWG
3|0
AWG
2|0
AWG
0
AWG
1
AWG
2
AWG
4
AWG
6
AWG
8
AWG
10
AWG
14
AWG
12
AWG
16
AWG
AWG W I R E S I Z E
100A to 300A
FUSE SELECTION CHART
25A
SINGLE
WIRE
BUNDLED
WIRES
SINGLE
WIRE
BUNDLED
WIRES
SINGLE
WIRE
BUNDLED
WIRES
SINGLE
WIRE
BUNDLED
WIRES
SINGLE
WIRE
BUNDLED
WIRES
SINGLE
WIRE
BUNDLED
WIRES
SINGLE
WIRE
BUNDLED
WIRES
SINGLE
WIRE
BUNDLED
WIRES
20A 20A 15A 25A 20A 20A 15A
30A 25A 20A 30A 25A 20A 30A 30A 30A 30A 30A 30A
30A 25A 30A 25A 50A 40A 30A 50A 40A 30A 50A 40A 30A 35A
60A 50A 40A 40A 60A 50A 40A 40A 60A 50A 40A 40A 50A 40A 40A 35A
80A 70A 60A 50A 80A 70A 60A 50A 80A 70A 60A 50A 80A 60A 50A 40A
80A 70A 125A 100A 80A 70A 125A 100A 80A 70A 125A 100A 130A 100A 70A 60A
150A 125A 125A 100A 150A 125A 125A100A 150A 125A 125A 100A 150A 130A 100A 80A
200A 175A 150A 125A 200A 175A 150A125A 200A 175A 150A 125A 200A 175A 150A130A
200A 175A 150A 250A 200A 175A150A 250A 200A 175A 150A 250A 250A 200A 175A150A
200A 175A 300A 250A 200A 175A 300A 250A 200A 175A 300A 250A 300A 250A 200A175A
300A 225A 200A 300A 225A 200A 350A 300A 225A 350A 300A 225A200A
250A 225A 250A 225A 400A 350A 250A 225A 400A 350A 250A225A
300A 250A 300A 250A 400A 400A 300A 250A 400A 400A 300A250A
Calculations are based on 105°C wire.
For lower temperature rated wire, consult the Circuit Wizard at
Choose a fuse from the list on the top of the FUSE SELECTION CHART by following along the line of the AWG WIRE SIZE
determined from Step 1. Appropriate fuse amperage will have a gray bar that intersects the line.
The appropriate fuse amperage will be found in one of the four gray bars below the selected fuse type.
Single Wire, Outside Engine Room = First column dark gray bar
Single Wire, Inside Engine Room = First column light gray bar
Bundled Wire, Outside Engine Room = Second column dark gray bar
Bundled Wire, Inside Engine Room = Second column light gray bar
Calculations are based on 105°C wire. For wire rated at 80°C or lower, use the fuse amperage for the next smaller wire size.
Example: For a 4 AWG single 105°C rated wire outside an engine room, the fuse amperage is 150A
Note: Possible fuse amperages for a circuit can fall between a range of maximum and minimum fuse amperages. The procedure above calculates the maximum fuse
amperage which reduces nuisance blows but may offer less protection than a lower amperage fuse. The minimum fuse amperage is calculated by multiplying the current
flow in amps by 125%. If the product instructions specify a fuse amperage, use that value if it is under the maximum amperage found in the above procedure.
If the specified fuse amperage is over the maximum suggested, move down the column and choose the wire size that intersects with the specified fuse amperage.
A
B
Full scale fuse
comparison:
ATO®/ATC® MAXI
AMI®/MIDI®
MEGA®/AMG® MRBF® Terminal Class-T ANL®
AGA® GMA® AGC®/MDL® ATM®
Although this process uses information from ABYC E-11 to recommend wire size and circuit protection, it may not cover all of the unique characteristics that may
exist on a boat. If you have specific questions about your installation please consult an ABYC certified installer.