Blue Sea 5239100 Fuse ATO/ATC 5 Amp 25/Pk
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You have 30 days to request a return. All sale items are final sale.
Blue Sea Systems 5239100 is a 5 Amp ATO/ATC style fast-acting fuse in a 25-pack, designed for DC circuit protection in marine and other 12V-class electrical systems.
Key Features
- Fast-acting ATO/ATC style fuses for circuit protection
- Tin-plated connector blades to help resist corrosion
- Visible indication of a blown fuse condition
- Maximum voltage: 32 volts DC
- Interrupt capacity: 1000 Amperes DC
Intended Use
- ATO/ATC style fuse applications
- DC circuit protection in boats, RVs, and similar off-grid electrical systems
- Replacement fuse use for compatible ATO/ATC fuse holders/panels
Product Details
- Brand: Blue Sea Systems
- Part Number: 5239100
- Fuse Type: ATO/ATC (blade fuse style)
- Amperage Rating: 5 Amp
- Fast-acting fuse
- Pack Quantity: 25 per package
- Connector/Blade Finish: Tin-plated connector blades
- Blown-State Indicator: Visible indication of blown condition
- Maximum Voltage: 32 volts DC
- Interrupt Capacity: 1000 Amperes DC
- SKU: 661-5239100
- Weight (variant): 68 grams (for the listed variant)
Parts Desk Insights
Best Use Case: Use this 5 Amp fast-acting ATO/ATC fuse as a direct replacement in any compatible ATO/ATC fuse holder or panel that’s rated for the same fuse type and circuit requirements.
Common Issues: If a fuse repeatedly blows, don’t just replace it—inspect the load wiring and the component the circuit powers for shorts or overload conditions. Also confirm you’re using ATO/ATC compatible holders (not other blade styles) so the fuse seats correctly.
Related Products & Accessories
- Fuses - Browse additional fuse ratings and styles for matching circuit protection.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 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.