Fuse Maxi 40 Ampere
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Blue Sea Systems MAXI Fuse (40 Amp, SKU 661-5139) provides reliable DC circuit protection with tin-plated connector blades for corrosion resistance and a visible indication of a blown fuse condition.
Key Features
- Tin-plated connector blades help resist corrosion
- Visible indication of blown condition
- Interrupt capacity: 1000 amps DC
- Maximum voltage: 32 Volts DC
Intended Use
- DC marine electrical systems
- 12V/24V-class DC power distribution (application depends on system voltage)
- Fusing applications using MAXI-style fuse holders/fuse blocks (use the correct fuse holder design)
Product Details
- Product Type: Breakers, Fuses & Fuse Holders
- Fuse Type: MAXI fuse
- Amperage Rating: 40 Amp
- SKU: 661-5139
- Connector Blades: Tin-plated (for corrosion resistance)
- Visible Blown Indication: Yes
- Interrupt Capacity: 1000 amps DC
- Maximum Voltage (DC): 32 Volts DC
Parts Desk Insights
Best Use Case: Use for DC branch-circuit or feed protection in marine and off-grid style power distribution where MAXI fuses are specified, especially when corrosion resistance and a quick visual blown-fuse check are helpful.
Common Issues: If the fuse blows repeatedly, don’t just replace it—inspect for short circuits, reversed polarity, undersized wire, or equipment faults downstream. Also confirm the fuse holder/fuse block is the correct MAXI style so the fuse seats properly.
Related Products & Accessories
- Fuses - Browse the fuse collection to match the required amperage and fuse system type.
- Electrical & Accessories - Look for compatible fuse holders, fuse blocks, and related electrical protection accessories.
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.