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MERSEN FUSE 250V 5SF 2,5A 5.20 MI5SF25V2,5
Mersen Q090519 MI5SF25V2.5 quick-acting 5 x 20 mm miniature glass cartridge fuse rated at 2.5 A and 250 V AC for electrical distribution and industrial equipment protection.
Why Choose the Mersen Q090519 5SF Miniature Fuse?
The Mersen Q090519, also identified by the catalogue reference MI5SF25V2.5, is a compact 5 x 20 mm quick-acting cartridge fuse designed to protect electrical distribution circuits, electronic equipment and industrial control systems against excessive current. As part of the established Mersen 5SF IEC miniature fuse series, it responds rapidly to overloads and short circuits, helping reduce the risk of damage to connected components.
The Q090519 features a transparent glass cartridge body that enables straightforward visual inspection of the internal fuse element. Its cylindrical design is compatible with suitable 5 x 20 mm fuse holders and mounting clips, providing a practical solution for both original equipment manufacture and routine maintenance replacement.
With a rated current of 2.5 A and a rated voltage of 250 V AC, this miniature fuse is suitable for applications where prompt isolation is required when an abnormal current occurs. It is commonly used in control panels, power supplies, instrumentation and industrial electrical equipment.
Key Advantages
- Quick-acting miniature fuse for dependable overcurrent protection.
- 2.5 A current rating for accurately matched electrical circuits.
- 250 V AC voltage rating suitable for industrial equipment.
- Rapid operation helps protect sensitive components from damaging fault currents.
- Compact 5 x 20 mm cartridge format saves installation space.
- Glass body allows convenient visual inspection of the fuse element.
Key Features
- Mersen 5SF IEC miniature fuse series.
- Catalogue reference: MI5SF25V2.5.
- 2.5 A rated current.
- 250 V AC rated voltage.
- Quick-acting operating characteristic.
- Standard 5 x 20 mm cylindrical cartridge size.
- Transparent glass body for visual condition checking.
- Suitable for compatible fuse holders and mounting clips.
Fast Protection for Electrical and Electronic Equipment
Quick-acting fuses such as the Mersen Q090519 are designed to interrupt excessive current rapidly. This helps limit the time that sensitive components are exposed to overload or short-circuit conditions and makes the fuse suitable for circuits without significant normal start-up current.
The standard 5 x 20 mm dimensions simplify installation and replacement within compatible equipment. Its glass construction also enables maintenance engineers to inspect the fuse element visually when diagnosing an electrical fault.
Typical Applications
- Industrial control panels.
- Electrical distribution circuits.
- Electronic control equipment.
- Power supplies and instrumentation.
- Automation system components.
- OEM machinery and electrical assemblies.
Technical Specifications
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| Current | 2.5 A | |
|---|---|---|
| Voltage | 250 V | |
| Device Type | Fuse link | |
| Fuse Type | Miniature | |
| Fuse Size | 5x20 mm | |
| Fuse Class | Fast acting | |
| Manufacturer | Mersen | |
| Series | 5SF IEC Miniature Fuses | |
| Model | Q090519 | |
| Catalogue reference | MI5SF25V2.5 | |
| Product type | Miniature cartridge fuse | |
| Rated current | 2.5 A | |
| Rated voltage | 250 V AC | |
| Operating characteristic | Quick acting / fast acting | |
| Fuse speed designation | F | |
| Fuse size | 5 x 20 mm | |
| Overall length | 20 mm | |
| Nominal diameter | 5 mm | |
| Body material | Glass | |
| Mounting type | Fuse holder or clip mounting | |
| Typical applications | Electrical distribution and industrial equipment | |
| Applicable standard | IEC 60127-2 |
Frequently Asked Questions
What is the Mersen Q090519 used for?
The Mersen Q090519 provides quick overcurrent and short-circuit protection for electrical distribution circuits, electronic equipment and industrial control systems.
What is the current rating of the Q090519?
The fuse has a rated current of 2.5 A.
What voltage is this fuse rated for?
The Mersen Q090519 is rated for operation at up to 250 V AC.
Is the Q090519 a time-delay fuse?
No. It is a quick-acting fuse designed to interrupt excessive current rapidly rather than withstand prolonged inrush currents.
What size is the Mersen Q090519?
The fuse has a standard cylindrical cartridge size of 5 x 20 mm for installation in a compatible fuse holder or mounting clip.
Trusted by Electrical Professionals Worldwide
Mersen miniature fuses are trusted by electrical engineers, panel builders and equipment manufacturers for dependable overcurrent protection, consistent operation and reliable performance in industrial electrical systems.
