Victron Energy 6-Way MEGA Fuse Holder Busbar 500A — Compact modular DC fuse block for 12–48V systems

The Victron Energy 6-Way Mega Fuse Holder Busbar 500 Amp is a modular busbar system designed to hold six MEGA fuses and distribute up to 500 A safely across multiple circuits.

This compact, purpose-built assembly from Victron Energy streamlines high-current DC protection by combining six individual MEGA fuse holders with an optional busbar for efficient common connection. Built for marine, off-grid, automotive and industrial power systems, it organizes heavy-gauge wiring and centralizes fuse access so maintenance, upgrades and fault isolation are faster and neater.

How does this 6-way fuse holder simplify high-current wiring?

The unit replaces a tangle of separate fuse blocks by giving each MEGA fuse its own dedicated, modular holder while linking them through a busbar when required. That arrangement reduces wiring clutter, shortens cable runs and makes identifying a blown fuse quicker.

• Six single MEGA fuse holders for neat, individual protection.
• Optional busbar accessory allows a common input or shared distribution point.
• Compact footprint conserves panel or compartment space.
• Designed for heavy-gauge DC cables typical in 12V–48V systems.

What fuses and amperage does the product support?

This assembly is specifically for MEGA-style blade fuses, sized and rated separately by the installer to match circuit loads. The busbar and holder arrangement is rated to handle aggregate currents up to 500 A, depending on fuse selection and installation wiring.

• Accepts MEGA blade fuses only — not ANL or bolt-style fuses.
• System-rated up to 500 A when installed per Victron guidelines.
• Each holder isolates a single circuit for targeted protection.
• Fuse amperage chosen by installer to suit each branch circuit.

How do I install and maintain the 6-way MEGA fuse busbar?

Mount the holder on a flat, vibration-resistant surface and route heavy-gauge cables to each fuse holder lug. If using the optional busbar accessory, attach it per the supplied hardware so the incoming power ties to each holder correctly. Periodic visual checks and torque inspections keep connections reliable.

• Secure mounting with supplied or appropriate fasteners to prevent movement.
• Use correct cable gauge and torque values for 500 A class systems.
• Install MEGA fuses of appropriate rating indicated for each circuit.
• Inspect terminals for corrosion and retorque periodically.

Where is this fuse holder best used and what are its advantages?

Its design caters to environments needing organized, high-current DC protection — like boats, RVs, solar battery systems and vehicles. The modular, single-fuse approach reduces service time and allows straightforward expansion or reconfiguration of power branches.

• Ideal for marine, off-grid, automotive and industrial DC systems.
• Simplifies troubleshooting by isolating individual circuits to a single fuse.
• Allows neat rack or panel installations and cleaner cable management.
• Optional busbar lowers the number of large incoming conductors required.

Who is this for: installers, electricians and technically minded DIYers who design or maintain medium-to-high-current DC power systems and need a tidy, serviceable way to protect multiple branches with MEGA fuses. If you require centralized, modular fuse protection for battery banks, alternator outputs, inverter feeds or large accessory circuits, the Victron Energy 6-Way Mega Fuse Holder Busbar 500 Amp provides a practical, professional-grade solution that helps keep high-current installations organized and safe.