# Glass fuse set, 5x20 and 6x30, 5-20A, 75 pieces, with box

- Page: https://sigmanortec.ro/en/glass-fuse-set-5x20-and-6x30-5-20a-75-pieces-with-box
- Price: 27.81 RON
- Availability: In stock; 1-2 zile
- Reference: 9285 · EAN: 5948104041954
- Category: Electronic components > Other Components
- Specifications: Nominal Current: 3 - 30 A
- Package (shipping data): 0.088 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 05:45 (Europe/Bucharest)

## Description

Ideal for the quick replacement of blown fuses in electronic devices and equipment, the set includes 75 glass fuses in two sizes, 5x20 and 6x30 mm, with common ratings from 3 to 30A. Each rating comes in 3 pieces for a consistent запас, and the plastic organizer box keeps the fuses neatly arranged and easy to identify.
The glass fuse set contains 75 pieces in two standard sizes, 5x20 mm and 6x30 mm, covering a current range from 3A to 30A, delivered in a plastic organizer box with separate compartments for each value. The transparent glass body allows quick visual inspection of the filament condition, so a blown fuse can be identified at a glance, without measuring tools. The metal caps ensure good contact in standard clip holders, panel fuse holders, or inline fuse holders.
The 5x20 mm format is the most common in consumer electronics, power supplies, multimeters, audio amplifiers, household appliances, and control boards, while the 6x30 mm format is frequently used in automotive installations, rectifiers, inverters, transformers, and equipment with higher currents. The set is useful for service work, laboratories, and tool kits, because it eliminates situations where a repair is delayed due to the lack of a specific value. As passive protection components, fuses are installed on the power side of any circuit and are compatible with assemblies built around Arduino, ESP32, STM32 boards, or any other platform, both on the mains side and on the low-voltage side, provided the current rating and nominal voltage are respected.
The plastic organizer box has labelable compartments and a closing lid, which keeps the values separate and prevents them from mixing. This is important because a fuse with the wrong rating installed in a device effectively cancels the protection or causes repeated tripping without reason.
Specifications:
Type: cylindrical glass-bodied fuses
Total number of pieces: 75
Available sizes: 5x20 mm and 6x30 mm
Current rating range: 3A - 30A
Typical rated voltage: 250VAC
Operating type: fast-acting
Body material: transparent glass
Terminal material: metal caps
5x20 mm contents: 10 x 3A, 10 x 5A, 10 x 8A, 10 x 10A, 10 x 15A
6x30 mm contents: 5 x 5A, 5 x 8A, 5 x 10A, 5 x 20A, 5 x 30A
Total 5x20 mm: 50 pieces
Total 6x30 mm: 25 pieces
Packaging: plastic organizer box with separate compartments
Applications: consumer electronics, power supplies, automotive, inverters, laboratory equipment
Use:
Disconnect the device from the power source before any intervention and wait for the capacitors in the power supply to discharge
Locate the fuse holder and remove the blown fuse using a fuse puller or insulated needle-nose pliers
Read the marking on the metal cap of the old fuse, where the current rating and nominal voltage are printed
Visually inspect the filament through the glass body; a blown fuse will have a broken filament or darkened glass
Select from the organizer box a fuse with the same size, the same current rating, and a nominal voltage at least equal to the original one
Check the new fuse with a multimeter set to continuity mode; it should indicate resistance close to zero
Install the fuse in the holder by pressing gently until it is fully seated in both contact clips
Power on the device and verify normal operation
If the new fuse blows immediately, do not keep replacing it; instead, identify the fault in the circuit, usually a short circuit or a defective load
Store the remaining fuses in the corresponding compartments to avoid mixing the values