SMD^® Power Fuses, Outdoor Transmission

Construction Detail — SMD Fuse Unit

1. Stainless-steel drive spring provides stored energy to drive arcing rod upward through arc-extinguishing medium during fuse operation.
2. Solid-material arc-extinguishing medium.
3. Silver-clad copper arcing rod.
4. Filament-wound glass-epoxy tube.
5. Fusible element — helically coiled silver or pretensioned nickel-chrome — provide precise melting characteristics and nondamageable performance.