Eaton Bussmann MRBF-250 Marine Rated Battery Fuse, 250A 32V DC, Ignition Protected High-Current - Pack of 5

MRBF Series Marine Rated Battery Fuse - Eaton Bussmann Series

The Eaton Bussmann MRBF-250 is a specialized high-current circuit protection solution designed for marine, RV, and heavy-duty vehicle electrical systems. This Marine Rated Battery Fuse (MRBF) provides high-capacity protection in a compact form factor, designed to be mounted directly to battery terminals via a terminal fuse block (sold separately). By consolidating circuit protection at the power source, it eliminates the need for excess cabling and independent fuse holders, significantly reducing potential failure points.

The MRBF-250 is fully ignition-protected as per SAE J1171 standards, ensuring it can be safely installed in gasoline engine compartments or environments with potential explosive vapors. Its weatherproof design and high interrupt rating make it a reliable choice for protecting modern DC power distribution systems.

Technical Specifications:

• Manufacturer: Eaton
• Brand: Bussmann series
• Catalog Number: MRBF-250
• Fuse Type: Marine Rated Battery Fuse (MRBF)
• Rated Current: 250 A
• Maximum Voltage Rating: 32V DC
• Interrupting Rating: 10,000A @ 14V DC / 5,000A @ 32V DC
• Compliance: SAE J1171 (Ignition Protected), IP66, RoHS Compliant

Physical Characteristics:

• Mounting Hole: M8 (5/16")
• Housing: High-temperature clear thermoplastic for immediate visual confirmation of fuse status
• Thermal Properties: Designed to withstand high-ambient temperature environments common in engine bays
• Terminal Interface: Tin-plated copper alloy for maximum conductivity and corrosion resistance

Application: The MRBF-250 is an industry-standard solution for primary circuit protection on battery banks, medium-sized inverters, DC-to-DC chargers, and heavy-duty auxiliary loads. It is widely used in marine vessels, solar power installations, and commercial emergency vehicles where high-current delivery and rugged reliability are mandatory.