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MERSEN FUSE 5SM 500MA MITTELTR. MI5SM25V0,5
Mersen F212548 MI5SM25V0.5 medium time-lag miniature fuse rated at 500 mA and 250 V AC, with a 5 x 20 mm glass cartridge and 300 A breaking capacity.
£0.4125
Why Choose the Mersen F212548 MI5SM25V0.5 Miniature Fuse?
The Mersen F212548 (MI5SM25V0.5) is a dependable 5 x 20 mm medium time-lag miniature fuse designed to protect electrical distribution circuits, industrial control equipment and electronic systems against overloads and short circuits. As part of the Mersen 5SM IEC miniature fuse series, it combines compact dimensions with reliable overcurrent protection for equipment that may experience brief current surges.
This miniature fuse has a rated current of 0.5 A (500 mA) and a rated voltage of 250 V AC. Its medium time-lag operating characteristic allows it to tolerate short-duration inrush currents while still interrupting sustained overloads and fault currents.
Manufactured in the standard 5 x 20 mm glass cartridge format, the Mersen F212548 is suitable for clip mounting in compatible miniature fuse holders. Its 300 A AC breaking capacity provides dependable fault interruption for industrial machinery, control panels, power supplies and electrical equipment.
Key Advantages
- Reliable medium time-lag overcurrent protection.
- 0.5 A rated current for low-current electrical circuits.
- 250 V AC rated voltage.
- Tolerates brief start-up and inrush currents.
- 300 A AC breaking capacity.
- Standard 5 x 20 mm miniature fuse dimensions.
Key Features
- Mersen 5SM IEC miniature fuse series.
- 0.5 A (500 mA) rated current.
- 250 V AC rated voltage.
- Medium time-lag operating characteristic.
- 5 x 20 mm glass cartridge format.
- 300 A AC breaking capacity.
- Designed for clip mounting in compatible fuse holders.
- RoHS-compliant construction.
Reliable Medium Time-Lag Circuit Protection
Medium time-lag fuses such as the Mersen F212548 are designed to tolerate temporary current surges that may occur when transformers, power supplies, motors and capacitive loads are energised. This helps reduce unnecessary fuse operation during normal equipment start-up.
When excessive current continues beyond the permitted time-current limits, the fuse element interrupts the electrical circuit. This helps protect wiring, electronic components and connected equipment from damage caused by sustained overloads and short circuits.
Typical Applications
- Industrial control panels.
- Electrical distribution circuits.
- Power supplies and transformer circuits.
- Electronic equipment and assemblies.
- Instrumentation and test equipment.
- Automation systems and OEM machinery.
Technical Specifications
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| Device Type | Fuse link | |
|---|---|---|
| Fuse Type | Miniature | |
| Fuse Size | 5x20 mm | |
| Fuse Class | Time delay | |
| Current | 0.5 A | |
| Voltage | 250 V | |
| Manufacturer | Mersen | |
| Series | 5SM IEC Miniature Fuses | |
| Part number | F212548 | |
| Catalogue reference | MI5SM25V0.5 | |
| EAN / UPC | 4086500014774 | |
| Product type | Medium time-lag miniature fuse | |
| Fuse size | 5 x 20 mm | |
| Rated current | 0.5 A (500 mA) | |
| Rated voltage | 250 V AC | |
| Current type | AC | |
| Operating characteristic | Medium time-lag | |
| Breaking capacity | 300 A AC | |
| Melting I²t | 0.21 A²s | |
| Power dissipation at rated current | 0.1 W | |
| Body material | Glass | |
| Mounting type | Clip mounting | |
| Product diameter | Approx. 5.1 mm | |
| Product length | Approx. 20 mm | |
| RoHS compliant | Yes | |
| HS Code | 85361010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the Mersen F212548 used for?
The Mersen F212548 provides medium time-lag overload and short-circuit protection for electrical distribution circuits, industrial equipment and electronic systems.
What is the current rating of the Mersen F212548?
The fuse has a rated current of 0.5 A, equivalent to 500 mA.
What voltage is this miniature fuse rated for?
The Mersen F212548 is rated for operation at up to 250 V AC.
What does medium time-lag mean?
A medium time-lag fuse tolerates brief start-up and inrush currents while still operating during sustained overloads and short circuits.
What is the breaking capacity of the Mersen F212548?
The fuse has a rated AC breaking capacity of 300 A.
Trusted by Electrical Professionals Worldwide
Mersen miniature fuses are widely used by panel builders, OEMs and maintenance engineers for dependable circuit protection across industrial automation, electrical distribution and electronic equipment.
