Fast Blow Fuse 20A, Glass, Fusible, Size 5x20mm, Set of 100 pcs
Available in stock
| Quantity | Price per unit | You save |
|---|---|---|
| 1–2 pcs | 25,99 lei | — |
| 3–4 pcs | 24,69 lei | 5% (−1,30 lei/unit) |
| 5–10 pcs | 23,39 lei | 10% (−2,60 lei/unit) |
| 11+ pcs | 22,09 lei | 15% (−3,90 lei/unit) |
20A fast-acting fuse for professional electronic protection
Complete set of 100 fast-acting glass tube fuses, standard size 5x20mm and 20A amperage. The ideal solution for protecting electrical circuits in household and industrial appliances, transformers, power supplies, and electronic equipment. Universal compatibility with all equipment using F-type 5x20mm fuses.
What you get with this product
- Economical set of 100 pieces — sufficient stock for long-term maintenance without repeated orders
- Fast overload protection — immediately interrupts the circuit when the current exceeds 20A
- Universal 5x20mm compatibility — fits into all standard fuse holders in electrical and electronic devices
- Transparent glass tube — immediately see if the fuse wire has blown, without disassembly
- Durable metal caps — stable electrical contact and durability for repeated installation
- Versatile application — suitable for televisions, radios, stabilizers, power supplies, transformers, and other equipment
How it works and how to install
The fuse contains a metal wire that instantly melts when the electrical current exceeds 20A, interrupting the circuit and protecting the device from damage. For installation, disconnect the device from the power supply, open the fuse compartment, remove the blown fuse, and insert a new one from the set. The standard 5x20mm size ensures compatibility with most fuse holders in electrical and electronic devices. You can check the fuse's status by looking through the transparent glass tube.
Frequently Asked Questions
Are these fuses suitable for LED power supplies and transformers?
Yes, they are compatible with all equipment that uses standard 5x20mm fuses and requires 20A protection at 250V.
How do I know if the fuse has blown?
The transparent glass tube allows for visual inspection — if the metal wire inside is broken or blackened, the fuse needs to be replaced.
How many times can I use the same fuse?
A fuse is a single-use protective component — once it has blown, it must be replaced with a new one from the set.
Technical Specifications
| Product Type | Fast-acting fuse |
| Rated Current | 20A |
| Maximum Voltage | 250V |
| Dimensions | 5mm diameter x 20mm length |
| Tube Material | Transparent glass |
| Cap Material | Metal |
| Package Quantity | 100 pieces |
| Protection Type | Fast-blow |
| EAN | 0781499710365 |
Warranty and Support
The product benefits from a 24-month warranty in accordance with current Romanian legislation. Right of return within 30 days of receipt. Fast delivery by national courier with confirmation throughout the process.
Couldn't load pickup availability

