Marine Rated Battery Fuses


These Cooper Bussman (BUSS) Marine Rated Battery Fuses (MRBF) are just what the doctor ordered for high current fusing where space is at a premium.  Designed for Marine use, even in closed engine compartments, as they are Ignition Protected.

Fuse Holder and cables available separately – shown for illustrative purposes only.

Full specifications, Master Kit, and compatible Fuse Holders provided below.




Voltage Rating:  58VDC Maximum
Ingress Protection:  IP66
Interrupt Rating:  10,000A @ 14VDC, 5000A @ 32VDC, 2000A @ 58VDC
Operating Temp:  -32 to +82 degC
Ignition Protected:  SAE J1117, Ideal for Marine Applications
Housing & Cover:  UL-rated 94V0 Thermoplastic
Compliances:  ISO 8820-6
Torque Rating:  Maximum 106 in-lbs (12 N•m)
Time vs Failure:
100% – > 100hr
135% – 900s max
200% – 60s max
350% – 0.1s min, 1.0s max
600% – < 0.2s
Dimensions:  See above photos

MRBF Fuse Holders & Master Kit


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