---
product_id: 254621572
title: "Blue Sea Systems ST Blade Fuse Block"
brand: "blue sea systems"
price: "273 zł"
currency: PLN
in_stock: true
reviews_count: 6
category: "Blue Sea Systems"
url: https://www.desertcart.pl/products/254621572-blue-sea-systems-st-blade-fuse-block
store_origin: PL
region: Poland
---

# 100A max block current 32V DC max voltage 18 in-lb screw terminal torque Blue Sea Systems ST Blade Fuse Block

**Brand:** blue sea systems
**Price:** 273 zł
**Availability:** ✅ In Stock

## Summary

> ⚡ Fuse your circuits with confidence — power up like a pro!

## Quick Answers

- **What is this?** Blue Sea Systems ST Blade Fuse Block by blue sea systems
- **How much does it cost?** 273 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/254621572-blue-sea-systems-st-blade-fuse-block)

## 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

- • **Built to Last:** Premium quality materials and torque specs ensure durability and reliability, outshining cheaper alternatives every time.
- • **Seamless Integration:** Mounts directly on battery terminals with secure #8-32 captive star lock screws for hassle-free installation.
- • **Powerhouse Protection:** Supports up to 100A per block and 30A per circuit for robust electrical safety.
- • **All-in-One Convenience:** Includes 4-circuit negative busbar, insulating cover, and write-on labels to keep your setup organized and compliant.
- • **Ignition-Proof Confidence:** Meets ISO 8846 & SAE J1171 standards, perfect for gasoline engine compartments—safety you can trust.

## Overview

The Blue Sea Systems ST Blade Fuse Block 6 Circuit with Ground and Cover delivers professional-grade electrical protection with a 100A max block current and 30A per circuit capacity. Designed for easy battery terminal mounting, it features ignition protection compliant with ISO 8846 and SAE J1171, making it ideal for marine and automotive use. Its durable construction, complete with a negative busbar, insulating cover, and clear labeling, ensures a safe, organized, and long-lasting power distribution solution.

## Description

Blue Sea Systems Fuse Block ST Blade Battery Terminal Mount 4 Circuit Kit , part number 5024, allows you to easily add 4 fused circuits to the terminal of a battery. Max Amps: 100A per block, 30A per circuit, Max Volts: 32V DC, Mounting hole: 3/8" (M10) stud, Screw Terminal Torque: 18in-lb, Screw terminal type: #8-32 screws. Mounts on the battery terminal stud and provides power to new accessories in your boat or vehicle. Ignition Protected–meets ISO 8846 and SAE J1171 for use in a gasoline engine compartment. ABYC/USCG compliant insulating cover, 4-circuit negative busbar, write on labels, and four 16-14 AWG and four 12-10 AWG Nylon insulated ring terminals included.

Review: 👍 - 👍
Review: After having bought two of the cheaper ones on desertcart at 1/3 of the price of this, I finally decided to risk the £40 and see what it's like, intending to replace one of my existing fuse boxes. I am not disappointed. The quality of this unit shines through and I have immediately ordered another to replace the other cheap one.

## Features

- Blue Sea Systems Fuse Block ST Blade 6 Circuit with Ground and Cover, part number 5025, can be used for 24-hour circuits
- Max Amps: 100A per block, 30A per circuit, Max Volts: 32V DC, Mounting :#8 (M4) Screw, Negative bus: #10-32 stud, Positive bus: #10-32 stud, Recommended Stud torque: 24 in-lb, Screw Terminal Torque: 18in-lb, Screw terminal type: #8-32 screws with captive star lock washer

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000THQ0CQ |
| Batteries Included? | No |
| Best Sellers Rank | #10,826 in Sporting Goods ( See Top 100 in Sporting Goods ) #7 in Boat Deck Hardware |
| Brand | Blue Sea Systems |
| Color | With cover |
| Customer Reviews | 4.7 4.7 out of 5 stars (12,092) |
| Date First Available | 6 August 2012 |
| Department | unisex-adult |
| Included Components | Blue Sea Systems 5025-BSS ST Blade Fuse Block - 6 Circuits with Negative Bus and Cover |
| Is Discontinued By Manufacturer | No |
| Item model number | 5025 |
| League | Blue Sea Systems |
| Length | 7.88 inches |
| Manufacturer | BLUE SEA |
| Material Type | Plastic |
| Number of Items | 1 |
| Number of Pieces | 5 |
| Product Dimensions | 10.16 x 10.16 x 5.08 cm; 90.72 g |
| Size | One Size |
| Sport | Boating |
| Style | 6 Circuit + Neg |
| Team | Blue Sea Systems |
| Usage | personal |
| Wattage | 3200 watts |
| Weight | 0.6 Pounds |
| Width | 3.88 inches |
| connector-type | Cage Clamp |

## Product Details

- **Connector type:** Cage Clamp
- **Current rating:** 30 Amps
- **Material:** Plastic
- **Mounting type:** Wall Mount
- **Number of contacts:** 6

## Images

![Blue Sea Systems ST Blade Fuse Block - Image 1](https://m.media-amazon.com/images/I/91-rnPRql1L.jpg)
![Blue Sea Systems ST Blade Fuse Block - Image 2](https://m.media-amazon.com/images/I/81qzMsck8VL.jpg)
![Blue Sea Systems ST Blade Fuse Block - Image 3](https://m.media-amazon.com/images/I/61Vy+y3V6cL.jpg)
![Blue Sea Systems ST Blade Fuse Block - Image 4](https://m.media-amazon.com/images/I/51JOTdR+tQL.jpg)
![Blue Sea Systems ST Blade Fuse Block - Image 5](https://m.media-amazon.com/images/I/31r+m6gj6YL.jpg)

## Available Options

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

## Questions & Answers

**Q: What is the total amp max for the bus?  Is it 180 amps (6*30) or can you only use a few 30 amp circuits.**
A: 100 amps per block, 30 amps per circuit. This is from the manufacturer's website.

**Q: Does this fuse block utilize a single power line in to feed the 6 circuits?**
A: Yes, a single source feeds all 6. There is also a single ground source for the 6 ground connections.

**Q: What's the difference between the one with split, and the one without?**
A: Split:It provides two isolated groups of circuits. For example if you have one group of circuits that you want to come on when the ignition switch is turned on. And a separate group of circuits that will stay on even if the ignition is off. A good example for this is if you have a clock on board you would want it to stay on. See manufacturer video: https://www.bluesea.com/resources/616/ST_Split_Bus_Fuse_Block

**Q: do I need a terminal block in conjunction with this or just wire this to my battery and run everything off of this its going in a enclosed trailer to run lights and a inverter .my winch I figure would be direct to the battery right ?**
A: You can certainly connect it directly to the battery; however that connection needs to be fused appropriately.  Also, "the winch" you referenced may be an issue since the auxiliary fuse panel is only rated for 100 amps.  If you wire directly to the battery I would ensure that you have an inline 100 amp fuse close to your battery.  I installed mine with a reset-able breaker (100 amp) between the battery and the fuse panel.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 👍
*by K***D on 22 December 2023*

👍

### ⭐⭐⭐⭐⭐ Review
*by T***S on 14 June 2025*

After having bought two of the cheaper ones on Amazon at 1/3 of the price of this, I finally decided to risk the £40 and see what it's like, intending to replace one of my existing fuse boxes. I am not disappointed. The quality of this unit shines through and I have immediately ordered another to replace the other cheap one.

### ⭐⭐⭐⭐⭐ Review
*by M***O on 7 December 2025*

Blue sea il top

## Frequently Bought Together

- Blue Sea Systems 5025 ST Blade Fuse Block 6 Circuit with Ground and Cover
- 10 Gauge Marine Wire,10 AWG 30ft 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 Poland*
*Store origin: PL*
*Last updated: 2026-03-13*