---
product_id: 2567080
title: "Blue Sea Systems ST Blade Fuse Block, 12 Circuits with Negative Bus"
brand: "blue sea systems"
price: "AR$161498"
currency: ARS
in_stock: true
reviews_count: 13
category: "Blue Sea Systems"
url: https://www.desertcart.com.ar/products/2567080-blue-sea-systems-st-blade-fuse-block-12-circuits-negative
store_origin: AR
region: Argentina
---

# 100A max capacity 12 fused circuits clear insulating cover Blue Sea Systems ST Blade Fuse Block, 12 Circuits with Negative Bus

**Brand:** blue sea systems
**Price:** AR$161498
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your projects with pro-grade fuse protection!

## Quick Answers

- **What is this?** Blue Sea Systems ST Blade Fuse Block, 12 Circuits with Negative Bus by blue sea systems
- **How much does it cost?** AR$161498 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/2567080-blue-sea-systems-st-blade-fuse-block-12-circuits-negative)

## 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

- • **Smart Safety Cover:** Clear insulating cover with push-button latch protects terminals and stores spare fuses.
- • **Heavy-Duty 100A Capacity:** Supports up to 100 amps total and 30 amps per circuit for high-demand DC systems.
- • **Streamlined Installation:** Integrated negative bus reduces wiring clutter; accepts ring or snap fork terminals.
- • **Power Up with 12 Circuits:** Manage up to twelve ATO/ATC fused circuits for ultimate control and expansion.
- • **Corrosion-Resistant Reliability:** Tin-plated copper buses and clips ensure long-lasting conductivity in harsh environments.

## Overview

The Blue Sea Systems 5026 ST Blade Fuse Block is a marine-grade, 12-circuit fuse panel with integrated negative bus, rated for 100 amps total capacity. Featuring corrosion-resistant tin-plated copper components and a clear insulating cover with spare fuse storage, it delivers reliable, organized DC circuit protection ideal for boats, RVs, and custom automotive electrical systems.

## Description

"The Blue Sea Systems 5026 ST Blade Fuse Block with Negative Bus is a high‑quality marine‑grade fuse panel designed to deliver clean, safe, and organized DC electrical circuit protection. Built to manage up to twelve individual branch circuits, this ST Blade Fuse Block is ideal for boats, RVs, overland vehicles, utility trucks, and custom automotive electrical systems. An integrated negative bus bar allows all ground connections to be terminated at a single location, reducing wiring clutter and simplifying installation and troubleshooting. The Blue Sea 5026 fuse block is rated for a total capacity of 100 amps, with support for up to 30 amps per circuit when used with standard ATO or ATC blade fuses. Durable tin‑plated copper buses and fuse clips provide superior conductivity and corrosion resistance, ensuring reliable power distribution in harsh marine and mobile environments. A clear, snap‑on insulating cover protects terminals from accidental short circuits and includes built‑in storage for spare fuses along with recessed labeling areas for quick circuit identification. Designed for long‑term performance, the Blue Sea Systems 5026 is a trusted solution for professional‑grade DC fuse protection and power management."

Review: Great upgrade from glass fuses - Excellent new fuse panel for boat , replaced glass fuse setup , went great and fixed all bad voltage issues I had
Review: Mandatory for any aftermarket electronics - I think I have at least a dozen of these now, every one of them faithfully protecting devices and making wiring quick, easy, and clean. Blue Sea isn’t the cheapest, but they are arguably the best. If you’ve got the room, always go for the larger fuse block just so you’ll have some built in expansion if needed. My oldest one is probably pushing 20 years old now and it still looks and functions exactly as it did when new. As far as I’m concerned, these fuse blocks are mandatory for any vehicle electronics not just for protection but because they are so easy to use. There aren’t many electronic devices that have the absolute durability of these things. I wouldn’t think of doing any aftermarket additions without having this fuse block in line. Their bus bars are legit too.

## Features

- TWELVE CIRCUITS WITH GROUND: Supports twelve ATO or ATC fused branch circuits with integrated negative bus
- 100 A MAXIMUM CAPACITY: Rated for up to 100 amps total capacity and supports up to 30 amps per circuit when used with standard ATO or ATC blade fuses, suitable for higher‑demand DC systems
- INSULATING COVER: Clear protective cover features a secure push‑button latch, integrated spare fuse storage, and recessed label areas for simple circuit identification and maintenance
- CORROSION RESISTANT: Tin‑plated copper buses and durable fuse clips resist corrosion and ensure long‑term conductivity in harsh automotive or marine environments
- FLEXIBLE INSTALLATION: Accepts ring or snap fork terminals; suitable for twenty four hour circuits

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001P6FTHC |
| Best Sellers Rank | #1,590 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Fuse Blocks (Tools & Home Improvement) #1 in Fuse Blocks (Industrial & Scientific) |
| Brand Name | Blue Sea Systems |
| Color | With cover |
| Connector Type | Screw |
| Current Rating | 100 A |
| Customer Reviews | 4.8 out of 5 stars 6,792 Reviews |
| Global Trade Identification Number | 00632085050269 |
| Included Components | Fuse Block, Cover, 20 write on circuit labels |
| Item Dimensions W x H | 3.31"W x 1.5"H |
| Item Highlight | Cover included; 32V DC; 100A per block; accepts ATO/ATC fuses; fuses sold separately |
| Item Type Name | boating-electrical-equipment |
| Item Weight | 0.1 kg |
| Manufacturer | Blue Sea Systems |
| Material | Tinned Copper |
| Material Type | Tinned Copper |
| Model | 5026 |
| Mounting Type | screw mount |
| Number Of Contacts | 12 |
| Number Of Poles | 24 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Number of Positions | 12 |
| Part Number | 5026-BSS |
| Specification Met | ISO 9000, SAE |
| UPC | 632085050269 |
| Unit Count | 1 Count |
| Voltage | 12 volts_of_direct_current |

## Product Details

- **Brand:** Blue Sea Systems
- **Color:** With cover
- **Connector Type:** Screw
- **Current Rating:** 100 A
- **Material:** Tinned Copper
- **Mounting Type:** screw mount
- **Number Of Contacts:** 12
- **Number Of Poles:** 24
- **Product Dimensions:** 3.31"W x 1.5"H
- **Voltage:** 12 volts_of_direct_current

## Images

![Blue Sea Systems ST Blade Fuse Block, 12 Circuits with Negative Bus - Image 1](https://m.media-amazon.com/images/I/71vlKyD5mWL.jpg)
![Blue Sea Systems ST Blade Fuse Block, 12 Circuits with Negative Bus - Image 2](https://m.media-amazon.com/images/I/81u78rKcnnL.jpg)
![Blue Sea Systems ST Blade Fuse Block, 12 Circuits with Negative Bus - Image 3](https://m.media-amazon.com/images/I/71MOaA-Zq9L.jpg)
![Blue Sea Systems ST Blade Fuse Block, 12 Circuits with Negative Bus - Image 4](https://m.media-amazon.com/images/I/71gM4Q8+qJL.jpg)
![Blue Sea Systems ST Blade Fuse Block, 12 Circuits with Negative Bus - Image 5](https://m.media-amazon.com/images/I/61VnH+1ixAL.jpg)

## Available Options

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

## Questions & Answers

**Q: What size ring connector is needed to attach wire to terminals?**
A: They are #8 as described in the description. Hard to find #8 rings in heat shrink connectors. #10 worked just fine for the terms and it seems all manufacturers sell this size.

**Q: Can I run +/- from batt to 100 amp breaker then +/- to fuse box so I can kill power to fuse box?**
A: Yes you can.  The fuse box will be powered off breaker.  I used a toggle switch panel instead of a main breaker.

**Q: Product page says this can handle 100 amps per block, does that mean 100 amps on the left 6, and another 100 on the right?**
A: No, it means 100a peak draw for the entire block...30a peak per circuit.  The main positive in should be fused at 125 per the specs from BlueSea.

**Q: Does this block come with a positive and a negative bus? I don't want to have to daisy chain the positive lead to each lead on the panel...**
A: Yes, it does indeed come with both a positive (fused) bus and a negative bus. Very nice unit, as with all Blue Sea products. I would and have bought again after purchasing mine.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great upgrade from glass fuses
*by S***R on August 15, 2026*

Excellent new fuse panel for boat , replaced glass fuse setup , went great and fixed all bad voltage issues I had

### ⭐⭐⭐⭐⭐ Mandatory for any aftermarket electronics
*by O***R on January 28, 2026*

I think I have at least a dozen of these now, every one of them faithfully protecting devices and making wiring quick, easy, and clean. Blue Sea isn’t the cheapest, but they are arguably the best. If you’ve got the room, always go for the larger fuse block just so you’ll have some built in expansion if needed. My oldest one is probably pushing 20 years old now and it still looks and functions exactly as it did when new. As far as I’m concerned, these fuse blocks are mandatory for any vehicle electronics not just for protection but because they are so easy to use. There aren’t many electronic devices that have the absolute durability of these things. I wouldn’t think of doing any aftermarket additions without having this fuse block in line. Their bus bars are legit too.

### ⭐⭐⭐⭐⭐ Great box
*by D***L on September 6, 2026*

Great fuse box works perfectly

## Frequently Bought Together

- Blue Sea Systems 5026 ST Blade Fuse Block 12 Circuit with Ground and Cover
- 6 Gauge Marine Wire,6 AWG 20ft Duplex Marine Grade Wire Tinned Copper Oxygen-Free Insulated Red& Black Electrical Cable for Boat/Automotive/RV/Camper/Trailer
- Blue Sea Systems 6006 m-Series Battery Switch ON/OFF with Knob, Red

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-09-22*