Unique-Bargains
Unique-Bargains Glass Tube Fuses AC 250V 20A Fast Blow 5x20mm 20pcs
Pack of 20 fast-blow glass tube fuses rated 250 V AC and 20 A, 5 mm by 20 mm
- Fast blow protects circuits at 250V
- 20A rating handles high current loads
- 5x20mm glass tube fits standard holders
- 20 pieces supply multiple replacements
- Lightweight 15g each for easy handling
Glass Tube Fuses 5x20mm
These are 5mm by 20mm glass cartridge fuses rated for 250V AC and 20A. They use a fast-blow element designed to open quickly during overcurrent events. The pack contains 20 pieces suited for protecting electrical equipment circuits. They require professional knowledge for correct selection and installation.
Fast Blow Circuit Protection
The glass body lets you visually confirm the fuse status after a fault. Each fuse weighs roughly 15g and fits standard 5x20mm holders or clips. They free up design space compared to bulkier fuse formats while delivering precise 20A protection. No special tools are needed beyond a compatible fuse holder.
Replaces Blown 20A Glass Fuses
Use these to replace failed 250V 20A fast-blow glass fuses of the same 5x20mm size. The jump is worth it when the original fuse has opened and the circuit is verified safe. They are not for circuits needing slow-blow characteristics or different voltage and current ratings.
Highlights
- Fast blow protects circuits at 250V
- 20A rating handles high current loads
- 5x20mm glass tube fits standard holders
- 20 pieces supply multiple replacements
- Lightweight 15g each for easy handling
Specifications
| Brand | Unique Bargains |
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Questions about this item
At what current does the 20 A fast-blow fuse open during sustained overload?
The fuse is rated to open quickly once current exceeds its 20 A rating, protecting the circuit from prolonged overcurrent.
How much heat do these glass tube fuses generate when carrying rated current all day?
At the rated 20 A the fuse element runs warm but stays within the glass tube’s thermal limits; no forced cooling is required.
What fuse holder or clip size is needed to install these 5 mm × 20 mm fuses?
A standard 5 mm diameter by 20 mm length fuse holder or PCB clips designed for that form factor will accept the fuses.
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