Victron Energy MIDI Fuse, 58V, M6, 5pk

Overview

The Victron Energy MIDI-fuse 58V-M6 is a bolt-down DC fuse range for protecting low-voltage electrical circuits on boats, with current ratings from 30A to 100A and a 58V maximum voltage rating. The M6 connection format suits compatible MIDI fuse holders and compact DC distribution layouts where a secure fuse connection is needed.

This range is a practical match for marine battery systems, charger feeds, DC-DC converter circuits, electronics distribution, and other onboard DC loads where the fuse rating must be matched to the cable and equipment. The MIDI format gives a smaller footprint than larger high-current fuse styles, while still using a fixed mechanical connection rather than a push-in blade fuse.

Key features

• 58V maximum voltage rating for low-voltage DC systems, including 12V, 24V, and suitable 48V installations where the system voltage remains within the fuse rating.
• M6 bolt-down connection for compatible MIDI fuse holders and DC protection assemblies.
• Available in 30A, 40A, 60A, 80A, and 100A ratings to suit different protected circuits.
• Package of 5 fuses in the selected current rating, useful for service spares or repeated installations.
• Approximate voltage drop is 65 mV on the 30A and 40A ratings, and 70 mV on the 60A, 80A, and 100A ratings.
• Cold resistance values are specified by rating, which helps when checking voltage loss and heat in carefully planned DC layouts.

Variants

This product is offered in five current ratings. Each variant uses the same MIDI-fuse 58V-M6 format and the same package style, while the current rating changes to match the circuit being protected.

The correct variant depends on the cable size, the connected equipment, and the fuse value required by the installation. A fuse should protect the conductor and circuit, not simply match the largest current the equipment might draw.

• CIP134030020 - 30A current rating. This version has an approximate voltage drop of 65 mV and cold resistance of 2 mO, making it suitable for lower-current DC circuits that call for 30A fuse protection.
• CIP134040020 - 40A current rating. This version has an approximate voltage drop of 65 mV and cold resistance of 1.4 mO, giving a step up for circuits specified around 40A.
• CIP134060020 - 60A current rating. This version has an approximate voltage drop of 70 mV and cold resistance of 0.9 mO for circuits that require 60A protection.
• CIP134080020 - 80A current rating. This version has an approximate voltage drop of 70 mV and cold resistance of 0.42 mO, suited to higher-load DC runs where 80A protection is specified.
• CIP134100020 - 100A current rating. This version has an approximate voltage drop of 70 mV and cold resistance of 0.45 mO for DC circuits that require 100A fuse protection.

Installation and fit

Install the fuse in a compatible MIDI fuse holder with M6 studs or terminals. The holder, cable, lugs, and torque values should match the current rating and the surrounding electrical system, especially in battery compartments, engine spaces, and other areas exposed to vibration.

For boat installations, the fuse should normally be placed close to the power source for the protected circuit, with cable routing kept short, supported, and protected from chafe. Always isolate the battery supply before servicing, and replace a blown fuse only after the cause of the fault has been found.

Use cases on board

These fuses suit compact DC protection points in marine electrical systems, including battery distribution, solar charge controller outputs, DC-DC charger feeds, electronics supply circuits, and auxiliary equipment circuits where a MIDI fuse is specified.

They are a good match for owners, refit yards, and marine electricians who want consistent spare fuses across a Victron-based DC system without mixing fuse formats unnecessarily.

What’s included

• Five Victron Energy MIDI-fuses in the selected current rating