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MERSEN FUSE 250V 5HT 4A 5.20 MI5HT25V4
Mersen C085378 4 A time delay ceramic cartridge fuse, 5 × 20 mm, rated at 250 V AC for reliable industrial circuit protection.
Why Choose the Mersen C085378 4 A Time Delay Ceramic Cartridge Fuse?
The Mersen C085378 is a dependable 5 × 20 mm time delay ceramic cartridge fuse designed to provide reliable overcurrent protection for industrial, commercial and electronic equipment. As part of the trusted Mersen IEC Miniature Fuse series, it offers effective protection against overloads and short circuits whilst allowing temporary inrush currents during equipment start-up.
Its time delay (slow blow) characteristic enables the fuse to withstand brief current surges without unnecessary operation, making it particularly suitable for transformers, motors, power supplies and industrial control equipment. The ceramic body provides enhanced mechanical strength and improved breaking performance compared with conventional glass fuses.
With a rated current of 4 A, a 250 V AC voltage rating and a standard 5 × 20 mm format, the C085378 is ideal for a wide variety of industrial automation, OEM machinery and electrical control applications requiring dependable circuit protection.
Key Advantages
- Reliable time delay ceramic cartridge fuse for industrial equipment.
- 4 A current rating suitable for electrical and electronic circuits.
- 250 V AC rated voltage for IEC applications.
- Slow blow characteristic reduces nuisance fuse operation.
- Ceramic body offers excellent fault interruption capability.
- Compact 5 × 20 mm design fits standard fuse holders.
Key Features
- Mersen IEC Miniature Fuse series.
- 4 A rated current.
- 250 V AC rated voltage.
- Time delay (slow blow) operating characteristic.
- 5 × 20 mm ceramic cartridge construction.
- Ceramic body for improved durability.
- Suitable for equipment with temporary inrush currents.
- RoHS compliant.
Reliable Circuit Protection for Industrial Equipment
Time delay fuses are designed to tolerate the temporary inrush currents generated when motors, transformers and power supplies are energised. This prevents nuisance fuse operation whilst continuing to provide dependable protection against sustained overloads and short circuits.
The Mersen C085378 combines compact dimensions with dependable slow blow performance, making it an excellent choice for industrial control panels, OEM machinery and electrical equipment requiring reliable overcurrent protection.
Typical Applications
- Industrial control panels.
- Power supplies and transformers.
- Motor control equipment.
- Industrial automation systems.
- OEM machinery.
- Electrical distribution equipment.
Technical Specifications
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| Current | 4 A | |
|---|---|---|
| Voltage | 250 V | |
| Device Type | Fuse link | |
| Fuse Size | 5x20 mm | |
| Fuse Class | Time delay | |
| Manufacturer | Mersen | |
| Series | IEC Miniature Fuses | |
| Model | C085378 | |
| Manufacturer reference | MI5HT25V4 | |
| Product type | Time delay ceramic cartridge fuse | |
| Current rating | 4 A | |
| Rated voltage | 250 V AC | |
| Fuse size | 5 × 20 mm | |
| Operating characteristic | Time delay (slow blow) | |
| Body material | Ceramic | |
| Overall length | 20 mm | |
| Diameter | 5 mm | |
| Standards | IEC miniature fuse, RoHS compliant |
Frequently Asked Questions
What is the Mersen C085378 used for?
It protects electrical and industrial circuits against overloads and short circuits whilst allowing temporary inrush currents during equipment start-up.
What is the current rating of this fuse?
The Mersen C085378 has a 4 A current rating.
Is this a fast acting fuse?
No. It is a time delay (slow blow) fuse designed to withstand short-duration start-up currents.
What size is the fuse?
The fuse has the standard 5 × 20 mm miniature cartridge format.
Where is this fuse commonly installed?
It is commonly used in industrial control panels, transformers, power supplies, automation equipment and OEM electrical machinery.
Trusted for Industrial Circuit Protection
Mersen miniature ceramic fuses are trusted worldwide by panel builders, machine manufacturers and maintenance engineers for dependable overcurrent protection across industrial and commercial applications.
