High-draw device, blown fuse, and you need the exact 20-amp rating back in that holder before it becomes a bigger problem. This 20A 3AG quick blow fuse is the fast-action cartridge that opens circuit the moment current runs past 20 amps – protecting the board from a short or sustained overload. Standard 3AG form factor, slot-and-go. An 'F' prefix on the body may identify the fast-blow type. $5 RRP, held in Australian stock so you're not staring at a three-week backorder
| brand | JAYCAR |
| type | Cartridge fuse – quick blow (fast action) |
| current_rating | 20 A |
| form_factor | 3AG |
| action_type | Fast / Quick blow |
| category | Electronics & Components > Electronic Components |
| rrp_aud | 5 |