Egis 3901 AMI/MIDI Fuse Block 30-200A
Egis 3901 AMI/MIDI Fuse Block 30-200A — Product description
The Egis 3901 is a sealed AMI/MIDI fuse block built to protect heavy DC circuits on the water. It takes AMI/MIDI fuses from 30 to 200 amps, runs up to 80 volts DC, and seals out spray and dust so you can mount it where the weather gets at it.
If you're running big loads, an inverter, a windlass, a bow thruster, a bank of accessories, you need a fuse that can take real amperage and survive a wet bilge. That's what the Egis 3901 is for. It accepts AMI/MIDI fuses rated 30 to 200 amps and handles up to 80 volts DC, so it covers most high-current circuits on a 12V or 24V boat.
The housing is glass-filled nylon, and it's sealed to IP66, IP67, and IP6K9K. That means dust-tight and good against spray, immersion, and pressure washing. The busbar is tin-plated copper for minimal voltage drop, and the hardware is stainless steel with self-locking nuts so your connections stay tight through vibration.
One detail we like: it has separate stud connections for cable mounting. Heavier-gauge cables and their terminals feed in and out on their own studs instead of landing on the fuse tab itself. It's also ignition protected, so you can install it near LPG or on a gas boat. Four-year warranty from Egis.
Key Features
- Accepts AMI/MIDI fuses from 30 to 200 amps, 80 Vdc max, for high-current DC circuits
- Tin-plated copper busbar delivers minimal voltage drop
- Sealed to IP66, IP67, and IP6K9K, dust-tight and good against spray and immersion
- Glass-filled nylon housing with stainless steel self-locking hardware for vibration-proof connections
- Ignition protected for installation near LPG or on gas boats
- Separate stud connections let heavier-gauge cables feed in and out without loading the fuse tab
Why Buy from NVN Marine
- Authorized Egis Mobile Electronics reseller, full manufacturer warranty
- NMEA member and ABYC certified, advice from real boat techs
- Same-day shipping before 3 PM ET on in-stock items
- NY headquarters and Fort Lauderdale flagship retail store
Technical specifications
| Title | EGIS AMI / MIDI Fuse Block 30 - 200 A Sealed Retail Pack |
|---|---|
| Brand | Egis Mobile Electronics |
| Manufacturer Part Number | 3901 |
| UPC | 850067590644 |
| Maximum Amperage | 30-200A |
| Max Voltage | 80 Vdc |
| Fuse Type | AMI / MIDI |
| Ingress Protection Rating | IP66, IP67, IP6K9K |
| Busbar Material | Tin-Plated Copper |
| Hardware | Stainless Steel Self Locking |
| Housing Material | Glass-filled nylon |
| Mounting Holes | 4x #10 (M5) & 2x 1/4" (M6) |
| Mounting Screw Max Torque | 50 in-lbs (5.5 N-m) |
| Warranty | 4 Year |
| Category | Electrical |
Frequently asked questions
What fuses does the Egis 3901 take?
It accepts AMI/MIDI style fuses rated from 30 to 200 amps.
Is this fuse block ignition protected?
Yes. It's ignition protected, so you can install it in potentially hazardous gaseous environments such as near LPG or on a gas boat.
How weatherproof is it?
The 3901 is sealed to IP66, IP67, and IP6K9K, so it's dust-tight and rated against spray, temporary immersion, and high-pressure washdown.
What's the mounting pattern and torque?
It has four #10 (M5) holes and two 1/4 inch (M6) holes. Maximum mounting screw torque is 50 in-lbs (5.5 N-m).
