5*20mm 6*30mm 6*25 Fast Blow Tube Fuses mm 250V 1A 2A 3A 4A 5A 6A 8A 10A 15A 20A 25A 30A Fuse Ceramic fuse. Protect your sensitive electronic circuits with our high-quality fast-blow glass tube fuses. Available in various sizes (5x20mm, 6x30mm, 6x25mm) and current ratings (1A to 30A), these fuses offer quick and reliable protection against overcurrent conditions. Ideal for a wide range of applications, including electronic devices, power supplies, and automotive systems.