--- product_id: 2567080 title: "Blue Sea Systems ST Blade Fuse Block 12 Circuit with Ground and Cover, 100 Amps, 5026" brand: "blue sea systems" price: "S$84" currency: SGD in_stock: true reviews_count: 13 url: https://www.desertcart.sg/products/2567080-blue-sea-systems-st-blade-fuse-block-12-circuit-ground store_origin: SG region: Singapore --- # 100A max capacity 12 fused circuits + ground Tin-plated corrosion resistance Blue Sea Systems ST Blade Fuse Block 12 Circuit with Ground and Cover, 100 Amps, 5026 **Brand:** blue sea systems **Price:** S$84 **Availability:** ✅ In Stock ## Summary > ⚡ Power your projects with pro-grade precision and corrosion-proof confidence! ## Quick Answers - **What is this?** Blue Sea Systems ST Blade Fuse Block 12 Circuit with Ground and Cover, 100 Amps, 5026 by blue sea systems - **How much does it cost?** S$84 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/2567080-blue-sea-systems-st-blade-fuse-block-12-circuit-ground) ## 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 Design:** Clear insulating cover with push-button latch and built-in spare fuse storage keeps your system secure and ready. - • **Powerhouse Protection:** Handles up to 100 amps total with 30A per circuit for high-demand DC systems. - • **Built to Brave the Elements:** Tin-plated copper buses and fuse clips resist corrosion in marine and automotive environments. - • **Streamlined Circuit Control:** Supports 12 ATO/ATC fused circuits plus integrated negative bus to reduce wiring clutter. - • **Effortless Installation & Maintenance:** Accepts ring or snap fork terminals with recessed labeling areas for quick identification. ## Overview The Blue Sea Systems 5026 ST Blade Fuse Block is a top-tier, marine-grade fuse panel designed for clean, safe, and organized DC circuit protection. It supports 12 fused circuits with an integrated ground bus, rated for 100 amps total and 30 amps per circuit. Featuring tin-plated copper buses for superior corrosion resistance, a clear insulating cover with spare fuse storage, and flexible terminal options, it’s the trusted choice for boats, RVs, and custom automotive electrical systems demanding reliable, long-term power management. ## 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." ## 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 | #1,537 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 4.8 out of 5 stars (6,778) 4.8 out of 5 stars | | 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 Type Name | boating-electrical-equipment | | Item Weight | 0.1 kg | | Manufacturer | Blue Sea Systems | | Material Type | Tinned Copper | | Model | 5026 | | Mounting Type | screw mount | | Number Of Contacts | 12 | | Number Of Items | 1 | | Number Of Packs | 1 | | Number Of Poles | 24 | | Number Of Positions | 12 | | Part Number | 5026-BSS | | Specification Met | ISO 9000, SAE | | Unit Count | 1 Count | | Upc | 632085050269 | | 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 Circuit with Ground and Cover, 100 Amps, 5026 - Image 1](https://m.media-amazon.com/images/I/71vlKyD5mWL.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 ### ⭐⭐⭐⭐⭐ A Go-To Fuse Block – I've Installed Several and Will Keep Coming Back to This One *by on Reviewed in the United States April 13, 2026* A Go-To Fuse Block – I've Installed Several and Will Keep Coming Back to This OneThe Blue Sea Systems 5026 ST Blade Fuse Block is a flat-out outstanding product that earns every bit of 5 stars, and having installed several versions of it across different projects I can say with complete confidence that it is the fuse block to use.The 12-circuit layout with integrated ground and cover is thoughtfully engineered and makes for a clean, professional installation every time. The 100-amp capacity handles demanding electrical loads without any concerns, and the individual circuit fusing keeps everything properly protected and organized. The build quality is exactly what you expect from Blue Sea Systems—solid, marine-grade construction that holds up to vibration, heat, and the demands of vehicle, RV, boat, and off-grid solar applications equally well. The transparent cover protects the fuse connections from moisture and debris while still allowing a quick visual inspection of all circuits without removing anything.Labeling circuits is straightforward, wiring is clean and accessible, and the overall installation experience is as professional and reliable as the end result looks. For anyone building out a 12V electrical system on an RV, boat, truck, or solar setup, this is the fuse block I recommend without hesitation every single time.If you want to do your electrical system right, start here. Highest possible recommendation. ### ⭐⭐⭐⭐⭐ 10/10 *by on Reviewed in the United States June 23, 2026* Use these for all my boat rewire.Mounting is easy and it’s always great quality. Perfect size for under the center console. ### ⭐⭐⭐⭐⭐ Quality products *by on Reviewed in the United States August 9, 2026* TOP NOTCHWill definitely purchase again… ## 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 --- ## 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.sg/products/2567080-blue-sea-systems-st-blade-fuse-block-12-circuit-ground](https://www.desertcart.sg/products/2567080-blue-sea-systems-st-blade-fuse-block-12-circuit-ground) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-08-18*