--- product_id: 302771417 title: "Blue Sea Systems ST Blade ATO/ATC Fuse Blocks" brand: "blue sea systems" price: "€ 134.37" currency: EUR in_stock: true reviews_count: 5 category: "Blue Sea Systems" url: https://www.desertcart.pt/products/302771417-blue-sea-systems-st-blade-ato-atc-fuse-blocks store_origin: PT region: Portugal --- # Dual isolated bus design 100A total capacity 12 fused circuits Blue Sea Systems ST Blade ATO/ATC Fuse Blocks **Brand:** blue sea systems **Price:** € 134.37 **Availability:** ✅ In Stock ## Summary > ⚡ Master your power game with Blue Sea’s pro-grade fuse block! ## Quick Answers - **What is this?** Blue Sea Systems ST Blade ATO/ATC Fuse Blocks by blue sea systems - **How much does it cost?** € 134.37 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/302771417-blue-sea-systems-st-blade-ato-atc-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 - • **Safe & Streamlined:** Clear insulating cover shields terminals and simplifies circuit labeling - • **Power Up with Precision:** Dual bus design separates switched & 24-hour loads for ultimate control - • **Versatile Battery Support:** Designed for dual isolated batteries or mixed load configurations - • **Built for High-Demand Systems:** Handles up to 100 amps total, perfect for complex DC power setups - • **Fuse Flexibility at Your Fingertips:** Supports 12 ATO/ATC blade fuses up to 30A each for tailored circuit protection ## Overview The Blue Sea Systems 5032 ST Blade Fuse Block is a rugged, dual-bus DC power distribution solution offering 12 individually fused circuits rated up to 30 amps each, with a total capacity of 100 amps. Its clear insulating cover enhances safety and labeling, while its flexible design supports multiple battery sources, making it ideal for marine, RV, and specialty vehicle electrical systems. ## Description The Blue Sea Systems 5032 ST Blade Fuse Block is a versatile and professional‑grade solution for managing complex DC electrical systems in marine, RV, off‑road, and specialty vehicle applications. Featuring a dual bus configuration, this fuse block divides twelve fused circuits into two electrically isolated groups, allowing installers to separate switched circuits from 24‑hour loads or manage power from multiple battery sources. This design improves safety, efficiency, and system organization in demanding electrical installations. The fuse block accepts standard ATO or ATC blade fuses and is rated for up to 100 amps total capacity, with support for up to 30 amps per individual circuit, providing dependable protection for lighting, electronics, pumps, and accessory loads. A clear insulating cover protects energized terminals from accidental contact and environmental debris while offering recessed areas for clear circuit labeling and simplified service access. Built with durable materials for long‑term reliability, the Blue Sea Systems 5032 ST Blade Fuse Block delivers clean wiring layouts, flexible power distribution options, and trusted circuit protection wherever reliable DC power management is required. Review: Terrific product - Easy to understand and install, makes all the wiring in my camper build much safer Review: Excellent quality worth every penny - Used a couple of these now in different projects. Don’t think you can get anything better, these are top quality and work exactly as described! ## Features - DUAL BUS DESIGN: Features two electrically isolated bus groups, each supporting six circuits, allowing separation of switched and 24‑hour loads for improved power management and system control - TWELVE FUSED OUTPUTS: Provides twelve individually fused branch circuits and accepts standard ATO or ATC blade fuses up to 30 amps per circuit for flexible DC protection - 100 AMP CAPACITY: Rated for up to 100 amps total per fuse block, making it suitable for higher‑capacity DC distribution systems serving multiple onboard accessories - INSULATING COVER: Clear protective cover shields terminals from accidental contact, helps reduce short‑circuit risk, and includes recessed areas for easy circuit labeling and identification - FLEXIBLE POWER OPTIONS: Designed to support two isolated batteries or mixed load configurations, making it ideal for complex DC systems with multiple power sources ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00WM2MWQ4 | | Brand Name | Blue Sea Systems | | Colour | With cover | | Connector Type | Screw | | Country of Origin | USA | | Current Rating | 100 Amps | | Customer Reviews | 4.8 out of 5 stars 583 Reviews | | Global Trade Identification Number | 00632085050320 | | Included Components | Fuse Block, Cover, 20 write on circuit labels | | Item Dimensions W x H | 8.4W x 3.8H Centimeters | | Item Type Name | boating-electrical-equipment | | Item Weight | 0.29 Kilograms | | Manufacturer | Blue Sea Systems | | Material | Plastic Tin-plated Copper | | Material Type | Plastic Tin-plated Copper | | Model Number | 5032-BSS | | Mounting Type | screw mount | | Number Of Contacts | 12 | | Number Of Poles | 12 | | Number of Positions | 12 | | Part Number | 5032-BSS | | UPC | 632085050320 | | Unit Count | 1.0 Count | | Voltage | 32 Volts (DC) | ## Product Details - **Current Rating:** 100 Amps - **Connector Type:** Screw - **Number Of Contacts:** 12 - **Mounting Type:** screw mount - **Material:** Plastic Tin-plated Copper ## Images ![Blue Sea Systems ST Blade ATO/ATC Fuse Blocks - Image 1](https://m.media-amazon.com/images/I/71GYI3i7kQL.jpg) ![Blue Sea Systems ST Blade ATO/ATC Fuse Blocks - Image 2](https://m.media-amazon.com/images/I/713l6XdkXXL.jpg) ![Blue Sea Systems ST Blade ATO/ATC Fuse Blocks - Image 3](https://m.media-amazon.com/images/I/71uMoe-MoDL.jpg) ![Blue Sea Systems ST Blade ATO/ATC Fuse Blocks - Image 4](https://m.media-amazon.com/images/I/71yc1re3vRL.jpg) ![Blue Sea Systems ST Blade ATO/ATC Fuse Blocks - Image 5](https://m.media-amazon.com/images/I/71gCSDGsdRL.jpg) ## Available Options This product comes in different **Color, Style** options. ## Questions & Answers **Q: What size Ring terminal do i need and what is largest awg it will accept?** A: The main supply and ground studs are 1/4x 20. I ran 8 ga wire to these with no issue. The individual circuits are #10 for the ground and #8 for the hot. I ran 12-16 ga wire to these, depending on the amount of distance the circuit covered. If you're neat, you could run 12 to each one with no issue. 10 ga might push it al little, but could be done. **Q: Is there a pdf instructions like on the other ones i can download? all i see is a video.** A: I don't know about a pdf, but the back of the package has simple directions on it. Basically on the top of panel you connect your ground and bottom you connect your power. I found this product on a YouTube site called Tiny boat nation. I'm very happy with my result. **Q: Is the first power wire from battery positive and then the Second terminal a trigger wire to enable the other fuses to be turned on?** A: This is a fuse panel intended for marine applications, and they should always be wired directly to the battery. What you are referring to is an automotive type of application, with an "accessory" side, which comes from the battery, via a relay, to a fuse pannel. You can wire this up any way you please, just do it correctly. **Q: Would this be good on a Honda pioneer to run led lights and a winch?** A: Well you could use it for that but both the lights and winch should come with there own relays wiring and switches the winch would. Be the one item I’d tell you not to run to this fuse block just because of the amount of power needed to run it . This is great for adding lights stereo led whip lights 12 volt usb ect. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Terrific product *by J***S on 4 June 2025* Easy to understand and install, makes all the wiring in my camper build much safer ### ⭐⭐⭐⭐⭐ Excellent quality worth every penny *by R***H on 16 April 2025* Used a couple of these now in different projects. Don’t think you can get anything better, these are top quality and work exactly as described! ### ⭐⭐⭐⭐⭐ Well made, versatile *by A***K on 9 May 2025* I used this to safely, cleanly add more circuits to an older vehicle. The split-circuit design was exactly what I needed, because I needed some circuits on battery power, like the radio clock, and some circuits on ignition only, like gauges. It was probably twice as big as I needed, which caused some mounting challenges, but it was helpful to have terminals accessible from both sides. The grounding block also wasn't strictly needed in a car, because you can ground anything to the vehicle body, but it did simply wiring. I found the block to be very sturdy and well-made, and the cover adds another layer of protection. Finally, the built-in fuse puller and spare fuse holder is a good "just in case" feature. ## Frequently Bought Together - Blue Sea Systems 5032 ST Blade Fuse Block Dual 12 with Ground and Cover - 14 Gauge Marine Wire 14 AWG Duplex Marine Grade Wire,50ft Tinned Copper Heavy Duty Sheathed Electrical Cable for Boat/Automotive/RV/Camper/Trailer - 16 Gauge Marine Wire 16 AWG Marine Grade Wire Include 16AWG 120FT Red & 120FT Black,16 Gauge Tinned Copper Electrical Cable for Boat Automotive Speakers Lighting Solar Outdoor RV Camper Trailer --- ## 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.pt/products/302771417-blue-sea-systems-st-blade-ato-atc-fuse-blocks](https://www.desertcart.pt/products/302771417-blue-sea-systems-st-blade-ato-atc-fuse-blocks) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-10-02*