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🛥️ Fuse your circuits with confidence — power, protection, and peace of mind!
The Blue Sea Systems MRBF Terminal Fuse Block is a compact, high-amp fuse block designed for DC main, inverter, windlass, and bow thruster circuit protection. Rated for up to 300 amps and 58 volts DC, it features weatherproof construction and an insulating cap to prevent shorts. Ignition protected when paired with MRBF fuses, it mounts easily with 3/8" threaded holes and 5/16" studs, making it ideal for demanding marine and harsh environment applications.







| ASIN | B002INJXO6 |
| Best Sellers Rank | 64,055 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 163 in Deck Hardware |
| Brand | Blue Sea Systems |
| Colour | Double Fuse |
| Connector Type | Screw terminal |
| Country Of Origin | USA |
| Current Rating | 300 Amps |
| Customer Reviews | 4.6 4.6 out of 5 stars (267) |
| Global Trade Identification Number | 00632085021511 |
| Included Components | Blue Sea Systems 2151-BSS Dual MRBF Terminal Fuse Block - 30 to 300A |
| Item Dimensions W x H | 6.4W x 8.9H centimetres |
| Item Type Name | Blue Sea Systems 2151-BSS Dual MRBF Terminal Fuse Block - 30 to 300A |
| Item Weight | 4.8 Ounces |
| Manufacturer | Blue Sea Systems |
| Manufacturer Part Number | 2151 |
| Material | Plastic |
| Model Number | 2151 |
| Mounting Type | 3/8 inch threaded mount |
| Number Of Contacts | 2 |
| Number Of Poles | 2 |
| Number of Items | 1 |
| Number of Positions | 2 |
| Specification Met | Unspecified Standards Meet |
| UPC | 632085021511 |
| Unit Count | 1.0 count |
| Voltage | 58 Volts (DC) |
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