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MERSEN FUSE 250V 5HT 8A 5.20 MI5HT25V8
Mersen A208357 5 × 20 mm time-delay ceramic cartridge fuse rated at 8 A and 250 V AC with a 1500 A breaking capacity for industrial and electrical circuit protection.
Why Choose the Mersen A208357 Time-Delay Ceramic Cartridge Fuse?
The Mersen A208357, catalogue reference MI5HT25V8, is a dependable 5 × 20 mm time-delay ceramic cartridge fuse designed to protect electrical distribution circuits, industrial equipment and control systems against sustained overloads and short-circuit faults. As part of the Mersen 5HT IEC miniature fuse series, it tolerates temporary inrush currents while maintaining reliable protection against damaging overcurrent conditions.
Rated at 8 A and 250 V AC, the A208357 is particularly suitable for circuits containing motors, transformers, power supplies and other inductive loads. Its time-delay operating characteristic helps prevent nuisance fuse operation during normal equipment start-up, while its high breaking capacity provides dependable fault interruption.
The fuse features a standard 5 × 20 mm ceramic body with nickel-plated brass contact caps and an internal extinguishing agent. This robust construction provides improved arc-quenching and thermal performance compared with standard glass-bodied fuses, making it suitable for demanding industrial and electrical applications.
Key Advantages
- Reliable 5 × 20 mm time-delay ceramic cartridge fuse.
- 8 A rated current for industrial and electrical circuits.
- 250 V AC voltage rating.
- Time-delay operation withstands temporary starting and inrush currents.
- 1500 A breaking capacity for dependable fault interruption.
- Ceramic construction provides effective arc-quenching performance.
- Standard cylindrical format simplifies installation and replacement.
- Suitable for motors, transformers and electrical distribution equipment.
Key Features
- Mersen 5HT IEC miniature fuse series.
- 8 A rated current.
- 250 V AC rated voltage.
- Time-delay fuse characteristic.
- 1500 A AC breaking capacity.
- Standard 5 × 20 mm cylindrical fuse format.
- Ceramic body with internal extinguishing agent.
- Nickel-plated brass contact caps.
- Clip or compatible fuse-holder mounting.
- Designed for circuits with short-duration current surges.
Dependable Protection for Circuits with Inrush Current
Time-delay fuses such as the Mersen A208357 are designed to tolerate temporary current surges that occur when motors, transformers and power supplies are energised. This helps prevent unnecessary fuse operation during normal start-up while maintaining protection against sustained overloads and short-circuit conditions.
The ceramic body and internal extinguishing agent help contain and extinguish the electrical arc produced when the fuse operates. The A208357 should be selected according to the normal load current, operating voltage, expected inrush current and prospective fault current of the protected circuit.
Typical Applications
- Small motors and motor-control circuits.
- Transformer primary and secondary circuits.
- Industrial control panels.
- Power supplies and power-conversion equipment.
- Automation and process-control systems.
- Electrical distribution equipment.
- OEM electrical and electronic assemblies.
Technical Specifications
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| Current | 8 A | |
|---|---|---|
| Voltage | 250 V | |
| Device Type | Fuse link | |
| Fuse Size | 5x20 mm | |
| Fuse Class | Time delay | |
| Manufacturer | Mersen | |
| Series | IEC Miniature Fuses 5HT | |
| Model | A208357 | |
| Catalogue number | MI5HT25V8 | |
| Product type | Time-delay ceramic cartridge fuse | |
| Rated current | 8 A | |
| Rated voltage | 250 V AC | |
| Current type | AC | |
| Fuse characteristic | Time-delay | |
| Breaking capacity | 1500 A AC | |
| Fuse size | 5 × 20 mm | |
| Product diameter | Approx. 5 mm | |
| Product length | Approx. 20 mm | |
| Mounting type | Clip or fuse-holder mounting | |
| Body material | Ceramic | |
| Contact-cap material | Nickel-plated brass | |
| Construction | With extinguishing agent | |
| Product weight | Approx. 0.002 kg | |
| EAN / UPC | 3605340209938 | |
| Order multiple | 50 | |
| Compliance | IEC 60127-2 Sheet 5, UL recognised, CSA certified and RoHS compliant |
Frequently Asked Questions
What is the Mersen A208357 used for?
The Mersen A208357 is a time-delay ceramic cartridge fuse used to protect electrical and industrial circuits against sustained overloads and short circuits.
What are the voltage and current ratings of this fuse?
The A208357 is rated at 8 A and 250 V AC.
What does the time-delay characteristic mean?
The time-delay characteristic allows the fuse to withstand brief starting and inrush currents while still operating when an overload continues for an unsafe period.
What size is the Mersen A208357?
The fuse uses the standard 5 × 20 mm cylindrical format for installation in compatible clips and fuse holders.
Why does this fuse have a ceramic body?
The ceramic body and internal extinguishing agent provide improved thermal strength and arc-quenching performance when the fuse interrupts a fault current.
Trusted Circuit Protection from Mersen
Mersen miniature ceramic fuses are widely used by equipment manufacturers, control-panel builders and maintenance engineers for dependable overcurrent protection in industrial and electrical applications.
