---
product_id: 254439550
title: "MRBF Surface and Terminal Mount Fuse Blocks"
brand: "blue sea systems"
price: "S$112"
currency: SGD
in_stock: true
reviews_count: 5
category: "Blue Sea Systems"
url: https://www.desertcart.sg/products/254439550-mrbf-surface-and-terminal-mount-fuse-blocks
store_origin: SG
region: Singapore
---

# 300A max current 58V DC max voltage Weatherproof & ignition protected MRBF Surface and Terminal Mount Fuse Blocks

**Brand:** blue sea systems
**Price:** S$112
**Availability:** ✅ In Stock

## Summary

> 🛠️ Fuse your circuits with confidence—power meets precision!

## Quick Answers

- **What is this?** MRBF Surface and Terminal Mount Fuse Blocks by blue sea systems
- **How much does it cost?** S$112 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/254439550-mrbf-surface-and-terminal-mount-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 shorts; ignition protected with MRBF fuses
- • **Voltage Ready:** Operates seamlessly up to 58V DC—perfect for modern power setups
- • **Compact & Efficient:** Space-saving 3/8" size fits tight installations without compromise
- • **Powerhouse Protection:** Handles up to 300A per block for serious circuit safety
- • **Built to Brave the Elements:** Weatherproof design ideal for harsh marine and outdoor environments

## Overview

The Blue Sea Systems MRBF Surface and Terminal Mount Fuse Blocks deliver robust, weatherproof circuit protection with a compact design supporting up to 300A and 58V DC. Ideal for marine, RV, and renewable energy applications, these fuse blocks ensure safety and reliability with ignition protection and insulating caps, making them a must-have for professionals upgrading their power systems.

## Description

BLUE SEA FUSE BLOCK TERMINAL 30-300A DUAL : desertcart.ae: Industrial & Scientific

Review: This compact, well-made design worked perfectly in my fifth-wheel RV. I made the switch from lead acid to LiFePO4 battery power with solar charging. I needed a compact device to provide a primary fused circuit breaker right at my 300 Sh battery. This does the job of providing protection at a reasonable cost.
Review: ziet meteen dat dit materiaal is.prijzig maar waar voor je geld i

## 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-pit 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 |
| Batteries Included? | No |
| Best Sellers Rank | #121,999 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #288 in Fuses & Holders |
| Brand | Blue Sea Systems |
| Color | Double Fuse |
| Customer Reviews | 4.6 4.6 out of 5 stars (291) |
| Date First Available | 1 January 2024 |
| Department | Unisex-Adult |
| Display Size | 7 Inches |
| Included Components | Blue Sea Systems 2151-BSS Dual MRBF Terminal Fuse Block - 30 to 300A |
| Is Discontinued By Manufacturer | No |
| Item model number | 2151 |
| Length | 7 inches |
| Manufacturer | Blue Sea Systems |
| Material Type | Plastic |
| Number of Items | 1 |
| Number of Pieces | 1 |
| Product Dimensions | 17.78 x 7.62 x 7.62 cm; 136.08 g |
| Size | 30 to 300A |
| Style | Terminal Mount |
| Weight | 1 Pounds |
| connector-type | Screw |

## Product Details

- **Connector type:** Screw
- **Current rating:** 300 Amps
- **Material:** Plastic
- **Mounting type:** 3/8 inch threaded mount
- **Number of contacts:** 2

## Images

![MRBF Surface and Terminal Mount Fuse Blocks - Image 1](https://m.media-amazon.com/images/I/51F-KPpeh0S.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by M***N on 2 January 2026*

This compact, well-made design worked perfectly in my fifth-wheel RV. I made the switch from lead acid to LiFePO4 battery power with solar charging. I needed a compact device to provide a primary fused circuit breaker right at my 300 Sh battery. This does the job of providing protection at a reasonable cost.

### ⭐⭐⭐⭐⭐ Review
*by D***. on 28 November 2025*

ziet meteen dat dit materiaal is.prijzig maar waar voor je geld i

### ⭐⭐⭐⭐⭐ Review
*by P***1 on 18 September 2024*

Sehr gutes Produkt, ermöglicht eine schlanke Elektroinstallation mit dem Nachteil, daß die Sicherungen ihren Preis haben. Für mich aber trotzdem angenehmer, als eine extra MEGAfuse-Box plus Kabel einzubauen.

## 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.sg/products/254439550-mrbf-surface-and-terminal-mount-fuse-blocks](https://www.desertcart.sg/products/254439550-mrbf-surface-and-terminal-mount-fuse-blocks)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-03-15*