Jaycar 4A 3AG Quick Blow Cartridge Fuse – Fast-Action Circuit Protection

Your bench supply, audio amp, or small motor driver just lost power and the 3AG fuse holder is showing a blown element. This Jaycar 4A quick blow cartridge fuse is sized to carry 4 amps under normal load and trip instantly if something shorts out downstream. Grab it, drop it in the same holder, and you're back before your next coffee. If your old fuse is stamped F4A or just 4A on the glass, this is the one

• 4A fast-action (quick blow) rating for rapid open-circuit protection
• 3AG cartridge form factor — standard glass tube fuse body
• Fits the vast range of consumer and industrial devices using 3AG holders
• May be marked F4A on the glass — cross-reference your existing fuse before purchasing
• Jaycar brand, stocked for same-day dispatch from our Australian warehouse