Blue Sea Systems 300A ANL Fuse Block with Cover – BSS-5005
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You have 30 days to request a return. All sale items are final sale.
300A ANL Fuse Block with Cover for Marine Electrical Systems
Protect your boat's main battery cables and high-current DC circuits with this heavy-duty 300-amp ANL fuse block. Designed for marine use, it provides reliable overcurrent protection for your primary power feed — the last line of defense between your battery bank and a potential electrical fire.
The included protective cover keeps the fuse terminal shielded from accidental contact and moisture, making it a safe and clean solution for engine compartments, battery boxes, and bilge installations.
Specifications
- Amperage Rating: 300A
- Type: ANL fuse block with cover
- Application: Marine high-current DC circuit protection
- Part Number: BSS-5005
- SKU: BSS-5005
Best Use Cases
- Main battery cable protection on powerboats and sailboats
- High-current feed protection for inverters, windlasses, and bow thrusters
- Primary overcurrent protection between battery bank and distribution panel
- Engine compartment installs requiring a covered, moisture-resistant fuse block
Parts Desk Insights
The BSS-5005 is the go-to choice for protecting your main battery feed on any serious marine electrical build. At 300A, it handles the heaviest loads on board — inverters, electric drives, and large windlasses. You'll need an ANL fuse to complete the install; the Blue Sea Systems ANL Fuse 40A – BSS-5165 is a popular companion for lighter branch circuits. For full panel protection and circuit distribution, pair this block with a dedicated marine distribution panel. Always size your ANL fuse to the wire gauge, not the load — this protects the cable, not just the device.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.