Glass fast‑blow fuses — 5 x 20 mm and 6 x 30 mm Key benefits Fast, reliable protection: fast‑blow action responds quickly to overcurrent events, protecting sensitive components. Broad current range: available from 0.1 A to 30 A (examples: 0.1, 0.2, 0.5, 1, 2, 3.15, 4, 5, 6, 7, 8, 10, 12, 15, 20, 30 A) to cover many common designs. Easy service: quick fuse‑change design reduces downtime and simplifies field replacement. Clear inspection: glass body gives immediate visual confirmation of fuse status. Key features Sizes: 5 x 20 mm and 6 x 30 mm to fit standard holders and enclosures. Voltage rating: 250 V. Construction: glass body with metal end caps. Protection type: fast‑blow (quick acting) fusing for fast interruption of overcurrent. Pack example: 5 A, 6 x 30 mm fuses available in packs of 10. How this product solves problems Prevents component damage and circuit failure by interrupting harmful overcurrents quickly. Reduces maintenance time with a quick change design and widely available sizes. Covers a wide range of currents so you can use the same fuse family across multiple projects and systems. Compatibility and performance Designed for use in 250 V systems. Glass construction allows visual verification of the fuse element to confirm operation or failure. Fast‑blow characteristic provides proven, rapid response to short overloads and faults. Practical applications and use scenarios Power supplies and regulators: install a 5 A, 6 x 30 mm fuse on the input of a 5 V or 12 V regulator for prototyping and easy replacement in the field. Consumer and industrial equipment: protect power adapters, household appliances, and control cabinets where quick interruption and visual inspection are required. Electronics development and labs: standard sizes and a wide current range make these fuses suitable for breadboards, test rigs, and DC‑DC converter protection. Ordering and handling notes Choose the size (5 x 20 mm or 6 x 30 mm) that fits your fuse holder or PCB footprint. Select the appropriate current rating for the circuit’s normal operating current and expected fault conditions. Example pack: 5 A, 6 x 30 mm fuses sold in packs of 10 for convenient spares. Use these glass fast‑blow fuses when you need clear visual status, fast overcurrent protection, and quick serviceability in 250 V applications.