Blue Sea Systems 40A ANL Fuse – BSS-5165
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40A ANL Fuse for Marine High-Current DC Circuits
Reliable overcurrent protection for mid-to-high-current marine DC circuits in the ANL fuse format. This 40-amp ANL fuse is designed for use with ANL fuse blocks and inline ANL fuse holders, providing fast-blow protection that trips quickly under overload to safeguard wiring and connected components before damage can occur.
The ANL format is a compact, high-current alternative to traditional glass tube fuses and is widely used in marine electrical systems for battery feed and high-draw accessory protection.
Specifications
- Amperage Rating: 40A
- Type: ANL fuse (fast-blow)
- Application: Marine high-current DC circuit protection
- Part Number: BSS-5165
- SKU: BSS-5165
Best Use Cases
- Protecting 40A DC branch circuits on powerboats and sailboats
- Battery feed protection for inverters, windlasses, and high-draw accessories
- Replacement fuse for existing ANL fuse block installations
- Mid-range high-current circuit protection where blade fuses are undersized
Parts Desk Insights
The 40A ANL fuse is a versatile mid-range rating that covers a wide variety of high-draw marine accessories — electric anchor windlasses, inverters, and large DC motors commonly draw in this range. For a complete ANL fuse installation, pair with the 300A ANL Fuse Block with Cover – BSS-5005, which provides the housing and terminal connections needed to mount this fuse inline on your main battery feed. For main battery cable protection at higher amperage, the fuse block's 300A rating gives you plenty of headroom for future system growth. Always size your ANL fuse to the wire gauge — not just the load — to protect the cable from overcurrent damage.
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.