Sapphire Energy
4 MIDI Fuse Distribution Block With 100A Main
4 MIDI Fuse Distribution Block With 100A Main
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4 Fuse Distribution with Main (MEGA + 4× MIDI)
Clean up your battery-side wiring with a compact MEGA main + 4-circuit MIDI (AMI) distribution block. This holder brings your main protection and four branch fuses together in one tidy hub—shorter cable runs, easier service, and a safer install right where it matters.
It ships with a 100A MEGA main fuse pre-installed, M8 studs on the MEGA side, and M5 studs for the four MIDI branches—plus a splash-resistant cover to help prevent accidental contact. Built around a copper busbar for low resistance and dependable current handling, it pairs perfectly with a lithium battery system upgrade and modern DC accessories.
Why You’ll Love It
| All-in-one hub: MEGA main + 4× MIDI branches keeps wiring short, tidy, and serviceable. | ||
| Splash-resistant cover helps reduce accidental shorts (install under cover/enclosure). | ||
| Copper busbar for low resistance and consistent current handling. | ||
| Pairs perfectly with LiFePO₄ battery upgrades and modern DC accessories. | ||
| Great for: solar charge controllers, battery chargers/RV converters/shore charging, DC-DC alternator chargers, small inverters, and 12V distribution panels. | ||
| Ready to use: 100A MEGA main fuse included for immediate install and testing. |
Specifications
| Type | MEGA main + 4× MIDI (AMI) distribution fuse holder |
| Included Fuse | 100A MEGA (main) |
| Panelboard Max Rating | 100A total |
| Stud Sizes | M8 (MEGA main), M5 (each MIDI branch) |
| System Voltage | 12/24/48 V systems (up to 72 V DC) |
| Cover | Splash-resistant protective cover (not waterproof) |
| Busbar | Copper |
| Mounting | Surface mount base |
Frequently Asked Questions
What fuses does it take?
The main position uses a MEGA/AMG fuse (a 100A MEGA is included). The four branches use MIDI (AMI) fuses, which you size based on each load and cable.
Does it come with MIDI fuses?
No—MIDI fuses are sold separately so you can choose the correct ratings for your system. Add our UL-Listed AMI/MIDI Fuses (2-Pack) to your cart.
What if my branch draws more than 100A?
Use a separate heavy-duty fuse for that device, such as an ANL fuse or another MEGA fuse on a dedicated feed.
Can I link multiple holders together?
Yes. You can use separate feeds and fusing to link multiple holders for more circuits—popular for larger van, RV, and marine builds.
Can I use it outdoors?
The cover provides splash resistance, but it’s not waterproof. Mount it under cover or in an enclosure to reduce exposure to spray and debris.
Is this a good fit for my van conversion?
Yes. It’s a compact, battery-side hub that keeps wiring short and organized, simplifies add-ons (solar charge controller, DC-DC alternator charger, small inverter), and pairs perfectly with a lithium battery upgrade.
Can I use this in my boat?
Yes—great for marine DC systems. Typical branches include a trolling motor, fish finder, depth sounder, and cabin electronics. Mount in a protected, dry location for longevity.
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