Protect your valuable electronics and industrial equipment with our comprehensive range of 20mm and 30mm Glass Fuses. These transparent, fast-acting fuses are designed to provide a reliable "weak link" in your electrical circuit, instantly breaking the flow of current during an overload or short circuit to prevent costly hardware damage. Whether you are repairing a home appliance, a car stereo, or professional laboratory equipment, our extensive amperage selection ensures you have the exact protection level required.
Transparent Glass Body: Allows for immediate visual inspection to confirm if the fuse has blown, saving time during troubleshooting.
Precise Amperage Ratings: Each fuse is manufactured to strict tolerances to ensure accurate "blow" points for maximum safety.
Nickel-Plated End Caps: Features high-conductivity end caps that resist corrosion and ensure a stable electrical connection within the fuse holder.
Two Standard Industrial Sizes: Available in the widely used 20mm (small) and 30mm (large) formats to fit a variety of fuse clips and blocks.
Wide Application Range: Ideal for use in power supplies, amplifiers, automotive accessories, and consumer electronics.
| Size | Available Amperage Ratings |
| 20mm Fuses | 0.5A, 0.63A, 1A, 1.25A, 1.5A, 2A, 2.5A, 3A, 4A, 5A, 6A, 7A, 8A, 10A, 20A, 30A |
| 30mm Fuses | 0.375A, 0.5A, 0.8A, 1A, 1.5A, 2A, 2.5A, 3A, 3.15A, 3.5A, 4A, 4.5A, 5A, 6A, 6.3A, 7A, 7.5A, 8A, 10A, 15A, 20A, 25A, 30A |
Material: High-Quality Glass Tube with Metal End Caps.
Dimensions: 20mm length or 30mm length.
How do I know which amperage to choose?
Always refer to your device's manual or the marking on the old fuse. Using a higher amperage than recommended can lead to fire hazards, while a lower amperage will cause the fuse to blow prematurely.
Can I use a 30mm fuse in a 20mm holder?
No. Fuses must match the physical dimensions of the holder (20mm or 30mm) to ensure a secure mechanical and electrical connection.
Are these "Slow-Blow" or "Fast-Blow" fuses?
These are standard Fast-Blow glass fuses, which are designed to react almost instantly to current spikes, making them ideal for sensitive electronic components.
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