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Marine Rated Battery Fuse Block EFB-MRBF1

MRBF Fuse Block

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SKU:
EFB
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Product Description

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Single Block Diagram

MRBF Block - Single - Side
MRBF - Single - Top

Double Block Diagram

MRBF - Double - Side
MRBF - Double - Top

Pacer Marine Rated Battery Fuse (MRBF) blocks provide compact, high-current circuit protection for marine battery banks and demanding DC applications. Designed for main battery, inverter, windlass, and bow thruster circuits, these fuse blocks deliver reliable overcurrent protection in space-constrained installations. Ignition-protected and rated IP66, they feature tin-plated copper alloy conductors, stainless-steel hardware, and a protective silicone cover for durability in harsh marine environments. Available in single and dual configurations, they accommodate fuse ratings from 30A to 300A and provide clear visual indication of blown fuses for easy inspection and maintenance.

Characteristics:

  • Compact, high-amp fuse protection—appropriate for DC main, inverter, windlass, and bow thruster circuit protection.
  • Single and dual fuse block options offer flexibility to deploy multiple circuits in a compact space.
  • Interrupt rating satisfies ABYC requirements for DC main circuit protection on many large battery banks.
  • Ignition-protected safe for installation in closed compartments with potential explosive gases.
  • Transparent window, visual indication of blown condition.
  • Mounts conveniently on XD Relay I/O terminals, battery terminals, and high ampere busbar terminals.

Features:

  • Protects electrical circuits from short-circuit events and over-current loads, preventing wire insulation overheating and subsequent destruction.
  • Ignition protected: Safe for installation in enclosed spaces on board gasoline engine-powered boats or in enclosed battery compartments.
  • Bullet-proof construction: Weatherproof high-temp materials for engine compartment applications and solid mounting points.
Interrupt Rating  10KA @ 14Vdc, 5KA @ 48Vdc, 2KA @ 58VDC
Max Voltage Rating  58 VDC
Fuse Amperage Range 30 - 300 Amps 
Fuse Holder Mounting Hole  Clearance for 3/8” (M10), (10.3 mm)
Stud Hardware Material Stainless Steel
Fuse Terminal Stud Size M8 (5/16")
Max Terminal Stud Torque  14.7 ft-lbs (20 N-m) 20 Nm
Cable Terminal Stud Hole Size 5/16” (M8)
Ignition Protection  SAEJ1171 / ISO 8846
Ingress Protection (IP) Rating  IP66
Maximum Temperature 200°C
RoHS compliant? Yes
Conductor Material  Tin Plated Copper Alloy
Protective Cover Material  Silicone Rubber
Base Insulator Material PPS
CE Compliance  ISO 8846
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