Fuse Mega 300A 32V
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You have 30 days to request a return. All sale items are final sale.
Protect demanding DC circuits with the Blue Sea Systems MEGA Fuse, rated 300A at 32V DC. Designed for high-current applications, it provides reliable overcurrent protection in a MEGA fuse format for systems such as main battery feeds, inverters, windlasses, and high-output alternator setups.
Key Features
- 300 Amp DC circuit protection rating for high-current applications
- 32V DC maximum voltage rating
- 2000A DC interrupt capacity for safe fault clearing
- MEGA fuse format designed to work with compatible standard MEGA fuse holders
- Built for economical protection in 100–300 Amp circuit applications
- Common use in marine DC power distribution for battery feed and load protection
Intended Use
- Marine and automotive DC electrical systems requiring high-current fuse protection
- Main battery feed protection
- Inverter circuit protection
- Windlass/anchor winch circuit protection
- High-output alternator circuit protection
Product Details
- Brand: Blue Sea Systems (MEGA Fuse)
- SKU: 661-5108
- Fuse type/format: MEGA
- Rating: 300A
- Maximum voltage: 32V DC
- Interrupt capacity: 2000A DC
- Product category: Breakers, Fuses & Fuse Holders
Parts Desk Insights
Best Use Case: Use in-line at the source side of a high-draw DC circuit (such as a main battery feed, inverter feed, or windlass circuit) with a compatible MEGA fuse holder for clean, serviceable overcurrent protection.
Common Issues: Ensure you’re using a compatible MEGA fuse holder for proper fitment and contact pressure. During installation, verify correct terminal orientation and follow the fuse holder/connection diagram so the system can interrupt safely under fault conditions.
Related Products & Accessories
- Fuse Block MEGA 100-300A without cover - Pair this fuse with a compatible MEGA fuse block/holder rated for the same circuit protection range.
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.