Fuse Types and Applications

Reference chart comparing mini blade, regular blade, maxi blade, MIDI, ANL, and AGU fuse styles with current ranges and common use cases — This chart compares the common fuse families by range and job. Use it to pick the right hardware style for the holder and current level, then size the actual fuse value to the wire before the amplifier.

Selection guide:

Fuse Type	Rating Range	Application
Mini blade	2–30A	Accessory circuits, small devices
Regular blade	5–40A	Medium accessories
Maxi blade	20–80A	Single amplifier branch circuits
MIDI	30–200A	Main power wire, mid-power systems
ANL	80–400A	Main power wire, high-power systems
AGU (glass)	40–100A	Inline fuse, moderate systems

Fuse sizing rule: Fuse protects the wire, not the device. Size fuse for wire rating, not amplifier rating.

Wire ratings at ambient temperature: - 8 AWG: 73A rated → use 60–70A fuse - 4 AWG: 101A rated → use 80–100A fuse - 2 AWG: 130A rated → use 100–125A fuse - 0 AWG: 175A rated → use 150A fuse - 00 AWG: 225A rated → use 200A fuse