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C I R C U I T P R O T E C T I O N
46
Specifications subject to change. See bluesea.com for current information.
Related Products
Related Products
Features
•
Appropriate for DC Main, inverter, windlass, and bow thruster
circuit protection
•
Weatherproof—suitable for small open-cockpit boats and other
harsh environments
•
Insulating cap prevents accidental shorts
•
Fuses sold separately (p. 40)
Specifications
Voltage Max. Operating
58V DC
Amperage Max. Operating 300A
Terminal Fuses Available 30–300 Amps
Regulatory
Meets SAE J1171 external ignition
protection requirements
0.47"
12.0mm
.10"
2.5mm
2.22"
56.5mm
0.43"
11.0mm
3.48"
88.5mm
1.83"
46.5mm
0.79"
20.0mm
0.61"
15.5mm
0.43"
11.0mm
.10"
2.5mm
1.18"
30.0mm
2.44"
61.9mm
1.83"
46.5mm
Ø0.40"
10.3mm
0.79"
20.0mm
Ø0.40"
10.3mm
Terminal Fuse Blocks
MRBF—Marine Rated Battery Fuse
Satisfies ABYC 7" circuit protection rule by mounting on a 3 ∕ 8" battery post,
battery switch, or bus bar
2151
5191
PN Terminal Stud Size Mounting
Hole
Fuses
5191 M8 (5∕16"-18)
3/8
"
1
2151 M8 (5∕16"-18)
3/8
"
2
5191
2151
MEGA® or AMG® Fuse Block
Provides an economical system for 100 to 300 Amp fusing
Features
•
Insulating cover with breakouts satisfies ABYC/USCG
insulation requirements
•
Stainless steel studs provide resistance to corrosion and allow
high torque
•
UL 94-V0 base resists high heat
•
Fuses sold separately (p. 40)
Specifications
Voltage Max. Operating
32 Volts DC
Amperage Max. Operating 300 Amps
Wire Size to Meet Rating 4/0 AWG (120mm²)
Fuses available
100–300 Amps
PN Terminal Stud Size
Mounting
5001
5∕16"-18 (M8)
#10 (M5) Screws
Terminal MRBF Fuses p. 40
MEGA® or AMG® Fuses p. 40
TECH
tip
by BLUE SEA SYSTEMS
The Benefit of Serrated
Flange Nuts
Ensuring a secure and correct connection
Blue Sea Systems is now shipping product with
serrated flange nuts which replace the more
traditional nut and split washer. The one-piece
serrated flange nut ensures correct and secure
wire termination.
•
Large base requires a greater amount of
torque to loosen than to tighten the nut
•
Enlarged circular base distributes heavy
pressure equally in order to assure
a secure hold
Serrated Flange Nuts
eliminate the possibility
of an incorrect connection.
CORRECT
Wire connection
placed under
Nut and Washer
INCORRECT
Wire connection placed
between Nut and
Non-conductive Washer
Nuts and
Washers
allow the
possibility of
an incorrect
connection.
5001