Blue Sea Systems 5A ATO/ATC Blade Fuse – BSS-5239
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
5A ATO/ATC Blade Fuse for Marine DC Circuits
A dependable 5-amp ATO/ATC blade fuse for protecting low-draw marine DC circuits. The standard ATO/ATC form factor fits virtually any blade fuse holder or fuse block, making this a universal replacement for a wide range of onboard applications where sensitive electronics and low-current accessories need reliable overcurrent protection.
Fast-blow design trips quickly under overload conditions to protect wiring and connected components before damage can occur.
Specifications
- Amperage Rating: 5A
- Type: ATO/ATC blade fuse (fast-blow)
- Application: Marine DC circuit protection
- Part Number: BSS-5239
- SKU: BSS-5239
Best Use Cases
- Protecting low-draw electronics such as chartplotters, depth sounders, and instrument displays
- Cabin lighting, bilge alarms, and small accessory circuits
- Replacement fuse for any standard ATO/ATC blade fuse holder
- Stocking spares for onboard fuse panels and distribution blocks
Parts Desk Insights
The 5A fuse is the go-to for sensitive electronics circuits where you want fast, precise protection — chartplotters, VHF radios, and instrument clusters all typically run in this range. For a complete fused distribution solution, pair with the ATO/ATC Fuse Block 6 Circuit with Ground – BSS-5025 or the Split Bus Fuse Block 12-Circuit – BSS-5032. Need an inline waterproof solution? The Waterproof Fuse Holder ATO/ATC – BSS-5065 is ideal for exposed or bilge-adjacent runs. For higher amperage needs, see the 25A (BSS-5244), 4A (BSS-5238), or 1A (BSS-5235) options in the same family.
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.