The Egis Mobile Electric 3908B is a sealed 5-way MIDI/AMI fuse block that distributes up to 500A from a single feed to five individually fused circuits of up to 200A each. It uses M8 input studs and M8 output studs, all in stainless steel with self-locking flanged nuts.
The glass-filled nylon housing is sealed to IP66 and IP6K9K with a Gore-Tex vent and is ignition protected to SAE J1171 for engine rooms and gas boats. The latching cover stores two spare fuses and spare screws, and lifting it gives an immediate visual check of blown fuses. Part of the Egis FLEX system, it links directly to XD relays and MT Series blocks with optional dual, triple and quad link busbars.
Key Features:
- Five fused MIDI/AMI/BF circuits, up to 200A each
- 500A total continuous current
- M8 input studs, M8 output studs
- Sealed to IP66 / IP6K9K with Gore-Tex vent
- Ignition protected to SAE J1171
- Glass-filled nylon construction
- Stainless steel self-locking hardware
- Cover stores 2 spare fuses and 4 spare screws
- Easy-latch high-visibility cover with circuit label
- FLEX System compatible – links to XD relays and MT Series blocks
- 1/4" (M6) mounting holes
- 4-year Egis warranty
Specifications:
| Circuits | 5 |
|---|---|
| Total Continuous Current | 500A |
| Max Fuse Rating | 200A |
| Fuse Type | MIDI / AMI / BF (not included) |
| Input Stud | M8 |
| Output Studs | M8 |
| Ingress Protection | IP66 / IP6K9K |
| Ignition Protected | Yes, SAE J1171 |
| Housing | Glass-filled nylon |
| Hardware | Stainless steel, self-locking |
| Mounting | 1/4" (M6) holes |
| Dimensions (L × W × H) | 9.89" × 5.77" × 3.29" |
| Warranty | 4 Years |
Applications:
- Marine vessels and boats
- Emergency and fire apparatus
- Work trucks and service bodies
- RVs, buses, vans and overland builds
- Battery bank and charging system protection
Sealed, ignition protected and expandable, the Egis 3908B is a clean way to protect five heavy circuits from one feed.
