Blue Sea Systems MRBF 300A Terminal Fuse, 58V DC, IP66 Rated

Ensure robust protection for your high-amperage DC circuits with the Blue Sea Systems MRBF (Marine Rated Battery Fuse) Terminal Fuse. Engineered for the demanding marine environment, this 300A fuse provides critical overcurrent protection for large battery banks, inverters, and other high-draw systems. Its ignition-protected design makes it safe for installation aboard gasoline-powered boats, meeting stringent safety standards. Upgrade your vessel's electrical safety and reliability today.

Key Benefits & Features:

• High Interrupt Rating: Satisfies ABYC requirements for DC Main circuit protection on large battery banks, ensuring safety and compliance.
• Ignition Protected (SAE J1171): Safe for installation in engine compartments of gasoline-powered boats, minimizing fire hazards.
• Visual Blown Fuse Indication: A clear window allows for quick and easy visual confirmation of a blown fuse, simplifying troubleshooting.
• Space-Saving Design: Compact form factor provides high-current protection in tight spaces.
• Weatherproof & Durable: IP66 rated, able to withstand heavy seas and harsh marine conditions for long-lasting performance.
• Color-Coded Amperage: Simplifies identification and ensures correct fuse replacement.
• Max Operating Voltage: Designed for systems up to 58 Volts DC.

Compatibility & Pairings:

• This MRBF Terminal Fuse (5190) requires the use of a compatible Terminal Fuse Block, such as Blue Sea Systems PN 5191 or PN 2151. It mounts on 3/8" (M10) fuse block, battery switch, or busbar terminals.
• Ideal for protecting DC Main Circuits, Inverters, Charge Controllers, Water Pumps, Windlasses, or Bow Thruster circuits.

WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.