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MERSEN FUSE 250V 5SF 0,8A 5.20 MI5SF25V0,8
Mersen K090514 MI5SF25V0.8 fast-acting 5 x 20 mm glass miniature cartridge fuse rated at 0.8 A and 250 V AC for electrical distribution and industrial circuit protection.
Why Choose the Mersen K090514 5SF Fast-Acting Miniature Fuse?
The Mersen K090514 is a compact and reliable fast-acting miniature cartridge fuse designed to protect electrical distribution circuits, industrial controls and electronic equipment against overcurrent and short-circuit conditions. Also identified by the catalogue reference MI5SF25V0.8, it forms part of the Mersen 5SF IEC miniature fuse series.
With a rated current of 0.8 A and a rated voltage of 250 V AC, the K090514 responds quickly when excessive current occurs. Its fast-acting operating characteristic helps reduce the electrical and thermal energy passing into a fault, limiting the risk of damage to sensitive components and wiring.
The fuse has a standard 5 × 20 mm glass cartridge construction, allowing straightforward installation in compatible miniature fuse holders. Its transparent body also enables visual inspection of the fuse element during maintenance and fault-finding.
Key Advantages
- Fast-acting characteristic provides rapid overcurrent protection.
- 0.8 A current rating for low-current electrical and electronic circuits.
- 250 V AC voltage rating.
- Compact 5 × 20 mm cartridge format.
- Glass body allows visual inspection of the fuse element.
- Suitable for industrial distribution and electronic equipment protection.
- Compatible with correctly rated 5 × 20 mm miniature fuse holders.
Key Features
- Mersen 5SF IEC miniature fuse series.
- MI5SF25V0.8 catalogue reference.
- 0.8 A rated current.
- 250 V AC rated voltage.
- Fast-acting fuse characteristic.
- Standard 5 × 20 mm dimensions.
- Glass cartridge body.
- Clip-mounted installation.
- Designed for electrical distribution circuits and industrial applications.
- RoHS-compliant construction.
Rapid Protection for Electrical Equipment
Fast-acting miniature fuses are designed to interrupt excessive current quickly without an intentional operating delay. This makes them suitable for circuits where immediate protection is required and significant temporary inrush currents are not expected during normal operation.
The Mersen 5SF range provides compact and dependable protection for electrical distribution circuits and industrial equipment. When correctly selected and installed, the K090514 helps protect wiring and components against damaging overload and short-circuit currents.
Typical Applications
- Industrial control panels.
- Electrical distribution circuits.
- Electronic equipment and assemblies.
- Instrumentation and monitoring systems.
- Power supplies and control devices.
- OEM machinery and automation equipment.
Technical Specifications
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| Current | 0.8 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 | K090514 | |
| Catalogue number | MI5SF25V0.8 | |
| Product type | Fast-acting miniature cartridge fuse | |
| Fuse size | 5 × 20 mm | |
| Rated current | 0.8 A | |
| Rated voltage | 250 V AC | |
| Supply type | AC | |
| Operating characteristic | Fast acting | |
| Body material | Glass | |
| Mounting method | Clip mounting | |
| Product diameter | 5 mm | |
| Product length | 20 mm | |
| Fuse format | Cylindrical cartridge | |
| Compliance | IEC miniature fuse and RoHS compliant |
Frequently Asked Questions
What is the Mersen K090514 used for?
The Mersen K090514 provides fast overcurrent and short-circuit protection for electrical distribution circuits, industrial controls and electronic equipment.
What is the current rating of the K090514?
The fuse has a rated current of 0.8 A, equivalent to 800 mA.
What voltage is this fuse rated for?
The Mersen K090514 is rated for AC circuits operating at up to 250 V.
Is the K090514 a fast-acting or time-lag fuse?
It is a fast-acting fuse designed to interrupt excessive current quickly without an intentional time delay.
What fuse holder is compatible with the K090514?
The fuse is suitable for correctly rated fuse holders designed to accept standard 5 × 20 mm miniature cartridge fuses.
Trusted by Electrical Engineers Worldwide
Mersen miniature fuses are widely selected by panel builders, equipment manufacturers and electrical engineers for dependable overcurrent protection, consistent performance and reliable fault interruption.
