Victron MEGA-fuse 500A/80V Pack of 5 | CIP138500020

The Victron Energy MEGA-fuse 500A/80V is a high-current DC fuse for protecting battery cables, busbars and inverter connections in 12V, 24V and 48V systems. Sold as a pack of five, it suits installers and system builders needing overcurrent protection across multiple battery banks or installations.

Key features

• Current rating, 500A continuous, for high-load DC applications including large inverters and battery systems.
• Voltage rating, 80V DC, compatible with 12V, 24V and 48V battery banks.
• Format, MEGA fuse, fits standard MEGA fuseholders including Victron's own range.
• Pack size, 5 fuses per pack.
• Protection, short-circuit and overcurrent protection for main battery cables and DC distribution.

Product overview

MEGA fuses are a common format in automotive, marine and off-grid solar DC systems. The blade-style body fits into a dedicated MEGA fuseholder, giving a serviceable point of overcurrent protection on the main positive cable between battery and load or inverter. At 500A, this fuse suits the highest-draw DC equipment, including large Victron Quattro and MultiPlus inverter/chargers where cable protection at the battery terminals is required.

The 80V DC rating gives headroom above nominal 48V battery voltages, including lithium systems that may reach 58V or higher at full charge. This suits the fuse to common battery chemistries and voltages used in off-grid, marine and vehicle installations. The cable cross-section, terminals and fuseholder must all be rated to carry 500A continuously before fitting.

Applications

• Main battery cable protection on off-grid solar systems with high-capacity inverters.
• Overcurrent protection on 12V, 24V and 48V lithium and lead-acid battery banks.
• Marine DC systems needing high-current fusing on the main positive feed.
• Vehicle and motorhome conversions with large inverter or winch installations.
• DC busbar protection in multi-battery or parallel battery configurations.

What's in the box

• 5 x Victron Energy MEGA-fuse 500A/80V

Installation notes

Fit only into a compatible MEGA fuseholder rated for the current and voltage of the application. DC systems at these current levels carry significant energy and can cause fire or injury if wired incorrectly. Installation should be carried out by a qualified electrician or experienced DC system integrator, and grid-connected solar work must comply with current UK wiring regulations.