---
product_id: 83092661
title: "Blue Sea Systems MRBF Terminal Fuse Blocks"
brand: "blue sea systems"
price: "C$8181"
currency: NIO
in_stock: true
category: "Blue Sea Systems"
url: https://www.desertcart.ni/products/83092661-blue-sea-systems-mrbf-terminal-fuse-blocks
store_origin: NI
region: Nicaragua
---

# 300A max current 58V DC max voltage Weatherproof & ignition protected Blue Sea Systems MRBF Terminal Fuse Blocks

**Brand:** blue sea systems
**Price:** C$8181
**Availability:** ✅ In Stock

## Summary

> 🛥️ Fuse your circuits with confidence — power, protection, and peace of mind!

## Quick Answers

- **What is this?** Blue Sea Systems MRBF Terminal Fuse Blocks by blue sea systems
- **How much does it cost?** C$8181 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/83092661-blue-sea-systems-mrbf-terminal-fuse-blocks)

## Best For

- blue sea systems enthusiasts

## Why This Product

- Trusted blue sea systems brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safety First:** Insulating cap prevents accidental shorts, ensuring peace of mind
- • **Voltage Ready:** Operates safely at 58V DC to keep your systems stable
- • **Seamless Integration:** Compact 3/8" mount with 5/16" studs fits effortlessly into your setup
- • **Powerhouse Protection:** Handles up to 300 amps for your high-demand circuits
- • **Built for the Elements:** Weatherproof design perfect for open-cockpit and harsh marine environments

## Overview

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.

## Description

Shop Blue Sea Systems 2151 Dual MRBF Terminal Fuse Block - 30 to 300A. Free delivery and returns on all eligible orders.

## Features

- Voltage Max Operating: 58V DC, Amps Max Operating: 300A per block, Terminal Fuses Avail.: 30A-300A, Terminal Stud Size: 5/16"-18 (8mm), Mounting Hole Size: #10 (5mm)3/8"
- Compact, high-amp fuse—appropriate for DC Main, inverter, windlass, and bow thruster circuit protection
- Weatherproof – suitable for small open-cockpit boats and other harsh environments
- Insulating cap prevents accidental shorts
- Ignition protected when used with MRBF fuses
- Fuses sold separately

## Technical Specifications

| Specification | Value |
|---------------|-------|
| 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) |

## Product Details

- **Brand:** Blue Sea Systems
- **Colour:** Double Fuse
- **Connector type:** Screw terminal
- **Current rating:** 300 Amps
- **Material:** Plastic
- **Mounting type:** 3/8 inch threaded mount
- **Number of contacts:** 2
- **Number of poles:** 2
- **Product dimensions:** 6.4W x 8.9H centimetres
- **Voltage:** 58 Volts (DC)

## Images

![Blue Sea Systems MRBF Terminal Fuse Blocks - Image 1](https://m.media-amazon.com/images/I/61iQg3HoniL.jpg)

## Available Options

This product comes in different **Style** options.

## Frequently Bought Together

- Blue Sea Systems 2151 Dual MRBF Terminal Fuse Block - 30 to 300A
- Blue Sea Systems Terminal Fuses

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**Shop now:** [https://www.desertcart.ni/products/83092661-blue-sea-systems-mrbf-terminal-fuse-blocks](https://www.desertcart.ni/products/83092661-blue-sea-systems-mrbf-terminal-fuse-blocks)

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-09-16*