SKU: 15761246229

Blue Sea 12 Circuits Blade Fuse Block/Holder w/ Negative Bus & Cover

Sale price$79.36 Regular price$88.18
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Description

Blue Sea 12 Circuits Blade Fuse Block/Holder w/ Negative Bus & CoverBlue Sea Systems ST Blade Fuse Block: Centralised Power Distribution for Marine and RV Systems Streamline Your 12V and 24V Electrical Systems The Blue Sea Systems ST Blade Fuse Block (12 Circuits) is the industry standard for consolidating branch circuits in demanding mobile environments. Designed to eliminate the "rats' nest" of in line fuses and messy wiring often found in boats, caravans, and 4WD canopies, this distribution block offers a

Blue Sea Systems ST Blade Fuse Block: Centralised Power Distribution for Marine and RV Systems

Streamline Your 12V and 24V Electrical Systems

The Blue Sea Systems ST Blade Fuse Block (12 Circuits) is the industry standard for consolidating branch circuits in demanding mobile environments. Designed to eliminate the "rats' nest" of in-line fuses and messy wiring often found in boats, caravans, and 4WD canopies, this distribution block offers a professional, safe, and reliable solution for managing your DC electrical connections.

Engineered for 12V and 24V systems (rated up to 32V DC), this unit allows you to power up to 12 separate accessories—such as fridges, lighting, water pumps, and navigation electronics—from a single reliable source. With a maximum total amperage of 100A per block and 30A per circuit, it is robust enough to handle the power requirements of modern off-grid setups while ensuring specific circuits are protected against overcurrent faults.

Integrated Negative Bus for Simplified Wiring

One of the standout features of this model is the integrated negative bus. In many electrical installations, finding a clean and accessible location for return lines (grounding) can be a challenge, often leading to stacked terminals on battery posts. This fuse block includes a built-in negative bus with #10-32 (Approx. M5) stud terminals, allowing you to run both positive and negative wires to the same block.

This design not only saves significant installation time but also reduces the number of connections required, minimising voltage drop and potential failure points. It creates a compact, self-contained power hub that makes troubleshooting easier in the future.

Marine-Grade Durability and ABYC Compliance

Built to withstand harsh saltwater and outdoor environments, the unit features tin-plated copper buses and fuse clips. This plating provides superior corrosion resistance compared to bare copper, ensuring consistent conductivity over the life of the vessel or vehicle. The base is constructed from reinforced polycarbonate, offering excellent heat resistance and strength.

The included insulating cover is designed to satisfy ABYC and USCG requirements for electrical insulation, protecting the fuses from accidental short circuits. The cover features an easy-to-open push-button latch, storage space for two spare fuses, and label recesses that accept Blue Sea Systems' Small Format Labels (sold separately), ensuring your system is clearly identified and compliant.

Key Features

  • 12 Independent Circuits: consolidate varying loads into one central hub
  • Integrated Negative Bus: simplifies wiring by providing a central ground point
  • High Current Rating: Supports 100A total continuous current and 30A per circuit
  • Corrosion Resistant: Tin-plated copper components for marine longevity
  • Safety Cover Included: Meets insulation requirements and stores spare fuses
  • Wide Voltage Range: Suitable for 12V and 24V DC systems (Max 32V DC)

Installation and Technical Context

This fuse block is designed for versatility. It accepts standard ATO® and ATC® fast-acting blade fuses, which are widely available and easy to replace. The main positive distribution bus utilises a #10-32 (Approx. M5) stud, while the branch circuits use #8-32 (Approx. M4) screws with captive star lock washers to ensure secure connections even under vibration.

*Note: While rated for 100A maximum, typical de-rating factors apply based on ambient temperature and wire sizing. Ensure your supply cable is fused appropriately at the battery source.

Whether you are refitting a yacht or building a custom 12V system for a camper trailer, the Blue Sea Systems 5026 fuse block delivers the reliability and organization required for professional-grade electrical installations.

Secure Your Electrical System

Upgrade to the Blue Sea Systems 12 Circuit ST Blade Fuse Block today for a safer, cleaner, and more reliable power distribution system in your boat or vehicle.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 15761246229

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4.9 ★★★★★
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K
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Kimmy Gamboa
Belleville, US
★★★★★ 5
Tinta para sublimar
Excelente me salió
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 2, 2025
S
Verified Purchase
SGT_Clinton
Louisville, US
★★★★★ 5
Great color saturation
I have only used this a couple of times and was concerned about the dull colors when it printed out. But the listing warns you about that so I went ahead and pressed it. Perfect! Bold colors and high quality images. Plus, filling my printer only took a little over half the bottles. Great value for the money and I will definitely be ordering again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 28, 2020
L
Verified Purchase
Lourdes L.
Massapequa, US
★★★★★ 5
Superior Customer Service; 100% prefect and functional, BUT...
Number of Items: 2
This product fits perfectly, after all it's just a simple piece replacement. The big deal is the counter reset, and this is where Customer Service outstands. People complaints about the difficulty of following the reset instructions, and with reason, as they are lengthy. But that is the printer you have, that is Epson's product. You either send the printer to them and pay the premium fee, or do it yourself, but you have to play their game. This is not Seller's fault; on the contrary, Seller put all their effort to include each and every steps you need to fix the problem, no matter what printer model you have. They included most, If not all, printer models you may have. They provided super detailed instructions to ensure your success; keys where needed, no keys where not needed, printer drivers location to download and ensure the resetter will work and, best of all, support if you need it. You have to contact them through Amazon asking for the user's manual (instructions; yes, the lengthy ones), the reset program and the reset keys if applicable (this depends on you printer model; some need the reset keys, some do not). And this is where you get concerned: When are they going to answer, now that my printer is locked? You think (I did): it is weekend, they will probably answer Monday or maybe Tuesday (after all, that already have the money, why care?). Well, I was absolutely wrong, they answered during the weekend with all necessary to have the printer back, up and running; Thank You. Some tips: 1. There is nothing wrong with the software (if got from a reputable source, and they for sure are), so get it without concerns. 2. Get the printer driver as advised; it is quite probable that the software will not work if you don't install the correct driver; don't forget to restart the computer after the driver installation. 3. Make sure your printer is set up with the USB connection Enabled (mine was disabled and that caused a headache: ET-4800). 4. When the resetter instructions call for Initialize the Counters, don't do it, not yet; select Check instead, just above Initialize. If you cannot read (Check) the counters, you will not be able to Initialize them: fix the connection problem first (make sure you installed the printer driver and RESTART the computer, make sure you enabled the USB connection in the printer, and make sure the usb cable is correctly connected). It's not Seller's fault to make long and complicated instructions, that is actually their effort to make sure you have all you need to succeed. Buy with confidence, this works: if you cannot make it work, you may find someone you trust to help you out (your kids or grandkids know a lot for sure), or just let Seller know, they are willing to help you out. Best regards.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 10, 2025
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Verified Purchase
Dee
Bozeman, US
★★★★★ 5
Perfect for ET-4700
Number of Items: 4
This is exactly what I needed and they fit perfectly with my ET-4700. Also, no mess! I will definitely purchase these again.
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Reviewed in the United States on May 31, 2026
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Verified Purchase
Banjo
Los Angeles, US
★★★★★ 5
Works great for ET-2720 - no key needed for this model either.
Number of Items: 2
This worked great for my ET2720, and the price is exceptional compared to what you could pay to have Epson complete this process. I’ll admit that it took me a while to complete it, maybe 25 minutes, but that is because I was being cautious. When I do it again, it would likely take 5-10 minutes having already done it once. I did read a helpful review and followed some of their advice, and that might have added some extra time. Not sure if it is important to download the driver that the .zip file directs you to, but it is from Jan 2025 and is outdated so you might be regressing to an older driver version in order to complete this process. I’ll add some things to note: The driver software in the .zip - it is just a list of URLs to an Epson driver download for different printer models in an Excel document. Make sure you have a way to open a .xlsx file. You don’t need a reset key for all printer models. I didn’t need one for my ET-2720. Each download from their website has different instructions in the .zip - so they should tell you if you will need one or not and you can contact them ahead of time to get it. That’s another thing. Don’t waste your time with the instructions in the box. Just use them for the simple ink pad replacement steps and how to download the .zip from their site. Then just follow the .pdf that is included in the .zip from there on out. Solid choice for this solution!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 11, 2025

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