Blue Sea 5238 Fuse ATO/ATC 4 Amp 2/Pk
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You have 30 days to request a return. All sale items are final sale.
Blue Sea 5238 ATO/ATC 4 Amp fast-acting fuses (2-pack) provide reliable circuit protection for DC electronics. Tin-plated connector blades help resist corrosion, and the fuse’s visible blown indication makes it quick to identify a faulted fuse.
Key Features
- Fast-acting ATO/ATC blade fuse (4 Amp) for DC circuit protection
- Tin-plated connector blades for corrosion resistance
- Visible indication of blown condition for quick troubleshooting
- Maximum voltage rating: 32 volts DC
- Interrupt capacity: 1000 Amperes DC
Intended Use
- DC electronics and systems that use ATO/ATC-style fuses
- Marine and RV power-distribution circuits requiring blade fuse protection (12V/24V DC systems, depending on the fuse panel rating)
- Replacement fuse use in compatible ATO/ATC fuse holders and fuse blocks
Product Details
- Blue Sea Systems ATO/ATC Fuse
- Amp rating: 4 Amp
- Pack count: 2/Pk
- Connector blade type: ATO/ATC
- Maximum voltage: 32 volts DC
- Interrupt capacity: 1000 Amperes DC
- Fuse performance: fast-acting type
- Product SKU: 661-5238
Parts Desk Insights
Best Use Case: Ideal as a spare or replacement fuse for DC circuits protected by ATO/ATC fuse holders—especially in environments where corrosion resistance matters.
Common Issues: If a fuse blows again after replacement, avoid repeated swaps—trace the underlying cause (overload, short circuit, or a failing component) before reinstalling a new fuse.
Related Products & Accessories
- Browse ATO/ATC fuses and fuse holders - Find matching blade fuses, as well as ATO/ATC fuse holders and related circuit-protection parts.
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.