Blue Sea 5237 Fuse ATO/ATC 3Amp 2/Pk
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Blue Sea 5237 ATO/ATC fuse (3Amp) is a fast-acting blade-style fuse designed for DC electrical protection. This 2-pack helps keep spares on hand for reliable, quick restoration after a blown fuse event.
Key Features
- Fast-acting blade fuse for DC circuit protection
- Visible indication helps identify a blown fuse
- Tin-plated connector blades for corrosion resistance
- Maximum voltage: 32V DC
- Interrupt capacity: 1000 Amperes DC
- Pack quantity: 2 fuses
Intended Use
- 12V/24V DC marine and RV-style electrical circuits using ATO/ATC blade fuses
- Use as a replacement in compatible ATO/ATC fuse holders/fuse blocks
Product Details
- Product: Blue Sea 5237 Fuse ATO/ATC
- Amperage: 3Amp
- Fuse type: ATO/ATC blade fuse
- Pack size: 2/Pk
- Maximum voltage: 32 volts DC
- Interrupt capacity: 1000 Amperes DC
- Connector blades: Tin-plated (corrosion resistance)
- Blown condition: visible indication
- Shopify variant SKU: 661-5237
Parts Desk Insights
Best Use Case: A good choice for replacing ATO/ATC blade fuses in DC circuits (such as accessory and control power) where you want fast-acting protection and a quick visual check when troubleshooting.
Common Issues: If a fuse blows repeatedly, avoid simply swapping fuses—inspect the connected wiring/load and confirm the circuit’s current draw and polarity. Also verify you’re using the correct fuse size/type for your ATO/ATC fuse holder before installation.
Related Products & Accessories
- Fuses - Browse the fuse category for additional amperages and fuse styles.
- Electrical & Accessories - Find related circuit protection and electrical components that pair with common fuse holders.
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.