Collection: Glass Fuses 5x20mm

Standard 5x20mm fast-blow glass fuses, 250V, from 0.5A (500mA) to 15A. Used in power supplies, chargers, adapters, amplifiers, inverters and DIY projects. Each one fits any 5x20mm fuse holder. Tip: choose a fuse about 25% above the normal working current of your circuit.

Fuse Finder Type your current, get the right fuse
1. What are you protecting?

Not sure? Current = power (watts) ÷ voltage. Example: a 24 W device on 12 V draws 2 A.

Car blade fuse colours: tap one

Always replace a blown fuse with the same rating (same colour). A bigger fuse can let the wire overheat. If a new fuse blows again straight away, look for a short circuit first.

About Glass Fuses 5x20mm

Standard 5x20mm fast-blow glass fuses, 250V, from 0.5A (500mA) to 15A. Used in power supplies, chargers, adapters, amplifiers, inverters and DIY projects. Each one fits any 5x20mm fuse holder. Tip: choose a fuse about 25% above the normal working current of your circuit.