100 Pcs Fast-Blow Glass Fuse Kit 5x20mm 250V – 10 Values

$18.64 $22.61

100-Piece Fast-Blow Glass Fuse Combination Kit – 10 Values, 5×20mm, 250V

Keep your electrical projects running safely with this comprehensive 100-piece fast-blow glass fuse assortment kit. Covering 10 amperage values in a single purchase, this kit is ideal for electronics hobbyists, technicians, DIYers, and anyone who needs a reliable stock of fuses on hand. Each fuse measures 5×20mm and is rated at 250V, making them compatible with a wide range of household appliances, audio equipment, power supplies, and electronic devices.

All 100 fuses arrive neatly organized in a clear plastic storage box, so you can instantly find the amperage you need without digging through a bag or loose packaging. Made in Mainland China.

What's Included — 10 Values × 10 Pieces Each

10 × 0.2A
10 × 0.5A
10 × 1A
10 × 2A
10 × 3A
10 × 5A
10 × 8A
10 × 10A
10 × 15A
10 × 20A

Key Features

Fast-Blow (Quick-Act) Design: Responds instantly to overcurrent events to help protect sensitive circuits and components.
Standard 5×20mm Size: Universally compatible with fuse holders, power strips, amplifiers, lab equipment, and more.
250V Rating: Suitable for a broad range of domestic and low-voltage electronic applications.
Glass Body: Visual inspection is easy — you can see at a glance whether a fuse has blown, saving troubleshooting time.
Organised Storage Box: Clear compartmentalised plastic case keeps all 10 values sorted and accessible.
100-Piece Value Pack: Comprehensive stock means you're covered for repairs, replacements, and new builds alike.

Specifications

Fuse Type	Fast-Blow (Quick-Act)
Size	5 × 20 mm
Voltage Rating	250V
Amperage Values	0.2A, 0.5A, 1A, 2A, 3A, 5A, 8A, 10A, 15A, 20A
Total Quantity	100 Pieces (10 per value)
Body Material	Glass
Storage	Clear plastic compartmentalised box
Country of Origin	Made in Mainland China

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Frequently Asked Questions

Q: What is the difference between a fast-blow and a slow-blow glass fuse?

A: A fast-blow (quick-act) fuse like the ones in this kit responds almost immediately when the current exceeds its rated amperage. This makes them ideal for protecting sensitive electronics that cannot tolerate even brief overcurrent surges. A slow-blow fuse, by contrast, can tolerate short-duration current spikes (common in motors and transformers) before opening the circuit. Always check your device's manual or the original fuse markings to confirm which type is required before replacing.

Q: Are these 5×20mm glass fuses compatible with standard fuse holders?

A: Yes. The 5×20mm (also written as M5×20mm) dimension is one of the most widely used glass fuse sizes worldwide. They fit the vast majority of standard PCB fuse holders, inline fuse holders, power-strip fuse compartments, audio amplifiers, and bench power supplies that accept 5×20mm cartridge fuses. If you are unsure, measure your existing fuse or check your device documentation.

Q: How do I know when a glass fuse has blown?

A: The clear glass body makes it easy to inspect visually. A blown fast-blow fuse typically shows a broken or melted wire filament inside the glass tube, and in some cases there may be blackening or discolouration on the glass. If in doubt, use a multimeter set to continuity or resistance mode — a good fuse will show near-zero resistance, while a blown fuse will show an open circuit (infinite resistance).

Q: How should I store unused fuses from this kit?

A: The included clear plastic compartmentalised storage box is designed to keep each amperage value separated and labelled. Store the box in a cool, dry location away from moisture and direct sunlight to preserve the fuses' integrity over time.