---
product_id: 83092661
title: "MRBF Terminal Fuse Blocks"
brand: "blue sea systems"
price: "NT$5171"
currency: TWD
in_stock: false
reviews_count: 7
category: "Blue Sea Systems"
url: https://www.desertcart.tw/products/83092661-mrbf-terminal-fuse-blocks
store_origin: TW
region: Taiwan
---

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

**Brand:** blue sea systems
**Price:** NT$5171
**Availability:** ❌ Out of Stock

## Summary

> 🛥️ Fuse your power with confidence — the ultimate marine circuit guardian!

## Quick Answers

- **What is this?** MRBF Terminal Fuse Blocks by blue sea systems
- **How much does it cost?** NT$5171 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/83092661-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, keeping your system secure
- • **Voltage Ready:** Operates safely at 58V DC to power your marine essentials
- • **Sleek & Compact:** 3/8" threaded mount fits seamlessly in tight spaces without compromise
- • **Powerhouse Protection:** Handles up to 300 amps for your high-demand circuits
- • **Built for the Elements:** Weatherproof design perfect for open-cockpit and harsh environments

## Overview

The Blue Sea Systems MRBF Terminal Fuse Block is a compact, high-amp fuse block designed for marine and harsh environment applications. Rated for up to 300 amps and 58 volts DC, it features weatherproof construction, ignition protection when paired with MRBF fuses, and an insulating cap to prevent shorts. Ideal for protecting critical circuits like DC mains, inverters, windlasses, and bow thrusters, this premium fuse block mounts securely with a 3/8" threaded hole and uses 5/16"-18 terminal studs.

## Description

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

Review: Neat arrgt. but pricey - Very neat system for mounting fuse directly to battery terminal. Changed battery lugs to cargo type so that fuse block would be mounted vertically.
Review: Way too expensive for what it is... - Ridiculously expensive. Well made product but you have to question the cost. Quality costs... unless you're being ripped off!

## 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 | 182,643 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 666 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 (1,132) |
| 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 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

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

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Neat arrgt. but pricey
*by M***T 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.

### ⭐⭐⭐⭐ Way too expensive for what it is...
*by P***K on 16 January 2026*

Ridiculously expensive. Well made product but you have to question the cost. Quality costs... unless you're being ripped off!

### ⭐⭐⭐⭐⭐ 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.

## Frequently Bought Together

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

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

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

---

*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-04-25*