Sea-Dog 4451201 ATO/ATC Fuse, 20 Amp (Fast), 5/Pk
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Sea-Dog 4451201 ATO/ATC style fuse (20 Amp, fast acting) in a 5-pack for convenient replacement in compatible fuse blocks and holders.
Key Features
- Fast acting ATO/ATC-style blade fuse helps protect electronic loads
- Injection-molded nylon fuse body for reliable, durable use
- Tin-plated connector blades help improve conductivity and corrosion resistance
- Pack of 5 fuses for easy spares
Intended Use
- Use with compatible ATO/ATC-style (blade) fuse holders and fuse blocks used in marine and DC accessory circuits
Product Details
- Sea-Dog ATO/ATC style fuse, 20 Amp
- Fuse type: ATO/ATC (blade)
- Action: Fast acting
- Quantity: 5 per pack
- Connector blades: Tin plated
- Fuse body: Injection molded nylon
- Part numbers/identifiers present on listing: 4451201, 354-4451201 (variant SKU)
Parts Desk Insights
Best Use Case: Great for stocking spares when an ATO/ATC-style fuse for a 20A circuit is needed—ideal for seasonal maintenance and troubleshooting.
Common Issues: If a 20A fuse blows repeatedly, inspect the protected circuit for a short or overload and check for a loose or corroded connection at the fuse blades and holder terminals before replacing again.
Related Products & Accessories
- Browse Fuses - Find additional ATO/ATC fuse ratings and pack sizes.
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.