Pack of 20 straight-pin, fast‑blow glass fuses — clear glass body for quick visual inspection. Size: 5 x 20 mm (standard cylindrical cartridge) suitable for any 5 x 20 mm fuse holder or clip. Voltage rating: 250 V (suitable for most low-voltage AC and DC protection applications within that rating). Current ratings available: 0.1 A, 0.5 A, 1 A, 2 A, 3.15 A, 4 A, 5 A, 6 A, 8 A, 10 A, 12 A, 15 A. This listing refers specifically to the 15 A variant in the pack. Fuse type: fast blow (quick-acting) — designed to interrupt overcurrent rapidly to protect sensitive components from short-duration surges. Primary function: circuit protection against overcurrent and short circuits; prevents damage to wiring and connected devices. Key benefits — why you need these fuses Fast-acting protection: responds quickly to overcurrent events, protecting sensitive electronics and reducing the risk of component failure. Easy inspection and replacement: transparent glass lets you see a blown element at a glance; straight-pin ends make installation and removal straightforward. Standard sizing and voltage: 5 x 20 mm, 250 V specification fits common holders in electronics, appliances, and industrial equipment. Versatile availability: multiple current ratings let you match the correct fuse to the circuit’s required protection level; this listing is for the 15 A option. Performance and materials Glass body for visual confirmation of fuse status. Straight metal end caps/pins for reliable electrical contact in standard fuse clips. Fast‑blow characteristic for rapid interruption of fault currents. Compatibility Fits any standard 5 x 20 mm fuse holder, panel mount, or inline clip rated for 250 V and the chosen current. Suitable where fast-acting protection is required and a 15 A rating is specified. Typical applications Protecting power supplies and small electrical panels where rapid interruption of overloads is needed. Use in consumer electronics, laboratory equipment, or test fixtures that accept 5 x 20 mm fuses and require fast‑blow behavior. Safeguarding wiring and components in industrial control modules or lighting circuits that operate within 250 V and a 15 A fuse requirement. What’s included 20 pieces of 5 x 20 mm straight-pin fast‑blow glass fuses, 250 V, 15 A (this pack). Other current options are available as listed above. Notes Select the fuse current rating that matches the device’s design specifications. Replace only with the same size, voltage, and current rating to maintain protection characteristics.