The Victron Energy MEGA-Fuse 400A/80V is a high-current DC fuse designed to protect battery cables, distribution circuits, and connected equipment from excessive current. Rated for 400A and up to 80V DC, it is well suited to properly engineered 12V, 24V, and 48V battery systems used in RV, marine, overland, off-grid, and stationary power installations.
The 80V rating provides the voltage headroom required for appropriately designed higher-voltage DC systems, while the MEGA bolt-down format provides a secure connection for demanding high-current applications
Best For
- Protecting high-current DC circuits in 12V, 24V, and 48V battery systems
- Battery bank overcurrent protection
- High-capacity inverter and inverter/charger circuits
- High-current DC distribution systems
- Compatible Victron MEGA fuse holder installations
- RV, marine, commercial, industrial, and off-grid electrical systems
Need Help Choosing the Right Victron Components?
Building a reliable mobile power system is about more than choosing individual parts. Battery capacity, inverter sizing, charging sources, DC distribution, monitoring, and future expansion all need to work together.
If you are comparing Victron products or planning a larger RV, van, marine, overland, or off-grid power system, schedule a no-risk consultation with the MobileMustHave team. We can help you hone in on the right products for your system goals before you buy.
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Your Partner in Mobile Power
With MobileMustHave, you get more than access to professional-grade Victron power products. You get a partner who can help you choose the right components, understand how they work together, and build a power system around the way you actually travel.
For customers who know exactly what they need, MMH makes it easy with in-stock products, ultra-fast shipping, easy returns, and competitive pricing. For customers who want more guidance, we can help with curated power bundles, system planning, remote commissioning, onsite installation options, remote monitoring support, and access to a nationwide support network.
Whether you are making a simple upgrade or planning a complete off-grid power system, MobileMustHave gives you as much or as little help as you need — before, during, and after the sale.





