100Pcs Fast-Blow Glass Fuses Assorted Kit 5x20mm 0.2x0.78 Inch F10AL250V 0.2A 0.5A 1A 2A 3A 5A 8A 10A 15A 20A
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SKU: 14:350850#100pcs boxed
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5×20 mm Glass Fuses — F10AL250V (Fast-Acting), 100-Piece Kit
Overview
This kit includes 100 fast-acting (F) 5×20 mm glass cartridge fuses with a nominal rating of 10 A, 250 V AC. Each fuse uses a transparent glass tube for visual inspection, nickel-plated brass end caps for reliable contact, and a copper–silver alloy fuse element for consistent opening characteristics.
Technical Specifications
| Form Factor | Cartridge fuse, 5×20 mm (Ø5 mm × 20 mm length) |
|---|---|
| Operating Class | F (Fast-acting) — model marking “F10AL250V” |
| Rated Current | 10 A (nominal) |
| Rated Voltage | 250 V AC |
| Tube Material | Durable glass |
| Ferrule Caps | Nickel-plated brass |
| Fuse Element | Copper–silver alloy |
| Body / Carrier | Hard plastic carriers as applicable to the installation (holder not included unless specified) |
| Quantity | 100 pieces per pack |
| Dimensions | Ø0.20″ × 0.79″ (approx. 5 mm × 20 mm) |
Typical Applications
- Power supplies and adapters
- Consumer and industrial appliances
- Control circuits and instrumentation
- Audio/video equipment and chargers
Function & Protection Principle
Fuses are designed to open the circuit when the current exceeds the rated threshold, preventing overheating, equipment damage, and potential fire hazards. In abnormal or fault conditions, rapid rise in current causes the fast-acting element to melt and interrupt the circuit, protecting downstream components and wiring.
Installation & Safety Notes
- Verify current rating, voltage rating, and speed class (F = fast-acting) match the application and safety requirements.
- Use a compatible 5×20 mm fuse holder with proper creepage/clearance and contact pressure.
- De-energize the circuit before replacing fuses; confirm fault root cause prior to re-energizing.
- Do not substitute time-lag (T) fuses where fast-acting (F) is specified, or vice versa.
Related terms: 10A 250V glass fuse, 5x20 fast blow fuse, cartridge fuse 5x20, F10AL250V replacement fuse.
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