---
product_id: 83092661
title: "2151"
brand: "blue sea systems"
price: "HK$1054"
currency: HKD
in_stock: null
reviews_count: 6
url: https://www.desertcart.hk/products/83092661-2151
store_origin: HK
region: Hong Kong
---

# 58V DC Max 300A Capacity Weatherproof Design 2151

**Brand:** blue sea systems
**Price:** HK$1054
**Availability:** ❌ Out of Stock

## Summary

> 🔧 Fuse Your Fears Away!

## Quick Answers

- **What is this?** 2151 by blue sea systems
- **How much does it cost?** HK$1054 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/83092661-2151)

## 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, keeping your systems secure.
- • **Versatile Fusing:** Available in a range of terminal fuses from 30A to 300A, tailored to your needs.
- • **Ignition Protected:** Compatible with MRBF fuses for added safety in ignition-sensitive applications.
- • **Weatherproof Wonder:** Built to withstand the elements, perfect for open-cockpit boats and harsh environments.
- • **Power Up Your Protection:** Designed for high-amp applications, ensuring your circuits are safe and sound.

## Overview

The Blue Sea Systems MRBF Terminal Fuse Blocks are robust, high-amp fuse solutions designed for DC main, inverter, windlass, and bow thruster circuit protection. With a maximum operating voltage of 58V DC and a capacity of up to 300A, these weatherproof blocks are perfect for marine environments. Featuring an insulating cap to prevent accidental shorts and ignition protection when used with MRBF fuses, they ensure safety and reliability in demanding conditions.

## Description

MRBF Terminal Fuse Blocks

## 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 |
|---------------|-------|
| Color | Double Fuse |
| Size | 30 to 300A |
| Style | Terminal Mount |
| Connector type | Screw |
| Display size | 7 Inches |
| Item display length | 7 inches |
| Weight | 454 g |
| Material type | Plastic |
| Number of items | 1 |
| Number of pieces | 1 |
| Included components | Blue Sea Systems 2151-BSS Dual MRBF Terminal Fuse Block - 30 to 300A |
| Batteries included? | No |
| Brand | Blue Sea Systems |
| Department | Unisex |
| Manufacturer | Blue Sea Systems |
| Item model number | 2151-BSS |
| Product Dimensions | 17.78 x 7.62 x 7.62 cm; 136.08 g |
| ASIN | B002INJXO6 |

## Product Details

- **Current rating:** 300 Amps
- **Connector type:** Screw
- **Number of contacts:** 2
- **Mounting type:** 3/8 inch threaded mount
- **Material:** Plastic
- **Colour:** Double Fuse
- **Brand:** Blue Sea Systems
- **Voltage:** 58 Volts (DC)
- **Number of positions:** 2
- **Manufacturer:** Blue Sea Systems

## Images

![2151 - Image 1](https://m.media-amazon.com/images/I/51F-KPpeh0S.jpg)
![2151 - Image 2](https://m.media-amazon.com/images/I/31znFpF4jkL.jpg)
![2151 - Image 3](https://m.media-amazon.com/images/I/41aMH9iK-ZL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Neat arrgt. but pricey
  

*by M***T on Reviewed in the United Kingdom on 9 June 2014*

Very neat system for mounting fuse directly to battery terminal. Changed battery lugs to cargo type so that fuse block would be mounted vertically.

### ⭐⭐⭐⭐⭐ 







  
  
    GENIUS.
  

*by @***L on Reviewed in the United States on 15 October 2024*

I had never heard of or seen this type of fuse - but it's awesome. Great quality, just as I have come to expect from Blue Sea.

### ⭐⭐⭐⭐⭐ 







  
  
    Don’t buy used
  

*by A***R on Reviewed in the United States on 19 August 2024*

Product itself is good.The used very good one I purchased was not worth the discounted price.Busbar had been filed away, fuse mounting studs cut and filed down, some slight bending of the terminal mount side.  It won’t properly hold a fuse as the posts are too short for the nut to securely fasten it.  Poor condition would have been a better description.The other one I purchased is great!

## 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.hk/products/83092661-2151](https://www.desertcart.hk/products/83092661-2151)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-01-22*