Victron Energy MEGA-Fuse 300A/58V High-Current Fuse for 48V DC Systems (1 Pack)
4.5 (10)
$26.00$13.00
The Victron Energy MEGA-Fuse 300A/58V provides high-amperage circuit protection for 48V battery and inverter systems, priced at just $13.00 (down from $26.00) with an extra 12% coupon discount for immediate online purchase.
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Victron Energy MEGA-Fuse 300A/58V is a genuine high-current fuse providing essential circuit protection for 48V DC battery banks, inverters, and distribution systems. It is the right purchase for anyone building or maintaining a 48V Victron or off-grid power system, and at $13.00 — half the $26.00 compare-at price — it is cheap insurance you should buy online today.
When Do I Need a 300A MEGA-Fuse in a 48V System?
Use a 300A MEGA-fuse when protecting high-current 48V circuits such as large inverters or battery main connections where expected continuous current approaches but stays below 300A. Always size the fuse to your wire gauge and maximum load current.
Specifications
Current rating: 300A
Voltage rating: 58V DC — rated for 48V DC products
Quantity: 1 piece
Voltage Drop Considerations
MEGA-fuses have very low resistance, so voltage drop at rated currents is minimal — ideal for 48V systems where headroom matters.
Compatibility
Fits standard MEGA-fuse holders and Victron fuse panels and distributors for 48V products.
Price Value & Deal Value
At $13.00 vs. $26.00 you save 50%. Add coupon OUTPOST12 for 12% more off — orders over $45 ship free, so stocking up on spares costs nothing extra in shipping.
Features
Genuine 300A/58V Victron MEGA-fuse for 48V systems at 50% off the regular price
Low voltage drop, high-amperage protection for inverters and battery mains — only $13.00 each
Affordable spare-part pricing at $13.00 with an extra 12% coupon discount and free shipping over $45
Seller: PowerHaven Outpost
Product Details
Essential 48V Protection for $13
A blown fuse is far cheaper than a burned cable or inverter. The Victron MEGA-Fuse 300A/58V is the correct protection element for high-current 48V circuits.
Use Cases
48V inverter main fusing
Battery bank protection
Off-grid and solar system builds
Comparison: MEGA-Fuse vs. ANL
MEGA-fuses offer higher breaking capacity and lower voltage drop than typical ANL fuses at similar current, making them the preferred choice in Victron 48V systems.
Deal Value
$13.00 (was $26.00), extra 12% off with coupon OUTPOST12, free shipping over $45 — stock spares.
Frequently Asked Questions
Where can I buy the Victron MEGA-Fuse 300A/58V online?
PowerHaven Outpost carries it at $13.00 — 50% off the $26.00 list price — with immediate online purchase and free shipping over $45.
When do I need a 300A MEGA-fuse in a 48V system?
Use it on 48V circuits with high continuous current, such as large inverter inputs and battery mains, where the load stays safely below 300A.
Is the 300A MEGA-fuse right for a 48V Victron inverter?
Yes, if your inverter's maximum DC draw falls below 300A. Match fuse rating to wire ampacity and inverter spec — lower amperage MEGA-fuses are also available.
Does a 300A MEGA-fuse cause voltage drop?
Minimal. MEGA-fuses have very low internal resistance, keeping voltage drop negligible even at high current in 48V systems.
Are there coupons or promotions on this fuse?
Yes — the sale price is already 50% off at $13.00, and coupon OUTPOST12 takes another 12% off at checkout.
4.5★★★★★★★★★★(10)
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Customer Reviews
10
★★★★★★★★★★5.0
p****s
Verified
Genuine quality fuse
Bought this for my 48V inverter install and it's clearly genuine Victron stock with proper markings. Fits my MEGA fuse holder perfectly and gives me confidence that my high-current circuit is properly protected. At this price with the coupon it was cheaper than the knockoffs at the local supply house.
★★★★★★★★★★4.0
h*****h
Verified
Does what a fuse should
No complaints. Arrived quickly, packaged well, and the contacts are clean and bright. Installed in my 48V battery bank main line.
★★★★★★★★★★5.0
j*****b
Verified
Excellent protection
Proper circuit protection is not the place to cheap out on a 48V system, and this genuine MEGA-fuse delivers. Solid construction, tight tolerances, and the rating is exactly what my inverter needs. I keep a spare on hand now.
★★★★★★★★★★5.0
h**s
Verified
Perfect
Genuine part, fast shipping, great price.
★★★★★★★★★★4.0
i*b
Good value for genuine Victron
Half the price of the marine store and it appears to be the real deal. Only reason for 4 stars is I wish it came in a two-pack since I like having spares.
★★★★★★★★★★5.0
x****y
Verified
Trust it in my solar setup
Using this on the main positive run of my 48V off-grid system between the battery bank and inverter. It's been through a full summer of high loads without any heating issues at the terminals. Proper fusing matters and this is proper equipment.
★★★★★★★★★★3.0
j*****f
Fine but packaging was minimal
The fuse itself is fine and works as expected, but it arrived in a plain plastic bag rattling around in a bigger box. No issues with function, just would prefer better packaging for something electrical.
★★★★★★★★★★5.0
v****f
Verified
Exactly as described
300A 58V MEGA-fuse, genuine Victron branding, perfect fit in my holder. Can't ask for anything more.
★★★★★★★★★★5.0
s****q
Verified
Retired electrician approved
Spent 35 years in the trade and I know good overcurrent protection when I see it. The construction on this fuse is exactly what you want - solid end caps, clear markings, proper amp rating stamped legibly. Bought two more as spares.
★★★★★★★★★★4.0
d*****h
Verified
Solid fuse, quick delivery
Needed this urgently after blowing a fuse during an inverter fault. Arrived next day and dropped right in. Quality looks on par with the original that came with my system.
