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MERSEN FUSE 400V SA 0,25 A 6.32 MI6SA40V0,25
Mersen R078905 MI6SA40V0.25 ceramic miniature cartridge fuse rated at 0.25 A and 400 V AC with a 6.3 x 32 mm body and semi time-delay characteristic.
£2.78
Why Choose the Mersen R078905 Ceramic Miniature Fuse?
The Mersen R078905, catalogue reference MI6SA40V0.25, is a high-quality ceramic miniature cartridge fuse designed to provide reliable overcurrent and short-circuit protection for industrial control equipment, instrumentation and electronic circuits. As part of Mersen's trusted 6.3 × 32 mm fuse range, it delivers dependable circuit protection where compact dimensions and consistent performance are essential.
Featuring a SA semi time-delay characteristic, this fuse withstands normal inrush currents while providing effective protection against sustained overloads and fault currents. Its ceramic construction offers excellent thermal resistance and a high breaking capacity for demanding industrial applications.
With a rated current of 0.25 A and a 400 V AC voltage rating, the R078905 is suitable for protecting low-current industrial and electronic circuits. Its standard 6.3 × 32 mm format allows quick installation into compatible fuse holders.
Key Advantages
- Compact 6.3 × 32 mm ceramic cartridge fuse.
- 0.25 A rated current for sensitive low-current circuits.
- 400 V AC rated voltage for industrial applications.
- SA semi time-delay characteristic reduces nuisance operation during inrush currents.
- High breaking capacity ceramic construction.
- Suitable for industrial control panels and electronic equipment.
Key Features
- Mersen MI6SA40V0.25 miniature fuse.
- 0.25 A rated current.
- 400 V AC rated voltage.
- SA semi time-delay characteristic.
- 6.3 × 32 mm ceramic body.
- Designed for fuse holder installation.
- High fault interruption capability.
- Reliable overload and short-circuit protection.
Reliable Protection for Industrial Control Circuits
Semi time-delay ceramic fuses provide dependable protection while accommodating temporary inrush currents generated by transformers, power supplies and similar equipment. The Mersen R078905 helps minimise unnecessary fuse operation while maintaining effective protection against sustained overloads and short circuits.
Its ceramic body provides enhanced thermal performance and high fault-breaking capability, making it suitable for demanding industrial and commercial electrical installations where dependable circuit protection is required.
Typical Applications
- Industrial control panels.
- Electronic equipment.
- Instrumentation and measurement systems.
- Power supplies.
- Control transformers.
- General industrial electrical circuits.
Technical Specifications
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| Current | 0.25 A | |
|---|---|---|
| Voltage | 400 V | |
| Device Type | Fuse link | |
| Fuse Type | Miniature | |
| Fuse Size | 6.3x32 mm | |
| Fuse Class | Time delay | |
| Manufacturer | Mersen | |
| Series | Miniature Ceramic Fuses | |
| Model | R078905 | |
| Catalogue number | MI6SA40V0.25 | |
| Product type | Ceramic miniature cartridge fuse | |
| Rated current | 0.25 A | |
| Rated voltage | 400 V AC | |
| Fuse size | 6.3 × 32 mm | |
| Characteristic | SA (semi time-delay) | |
| Body material | Ceramic | |
| Mounting type | Fuse holder | |
| Primary application | Overcurrent protection | |
| EAN | 3605340032680 |
Frequently Asked Questions
What is the Mersen R078905 used for?
The Mersen R078905 provides overcurrent and short-circuit protection for industrial control equipment and electronic circuits.
What is the current rating of the R078905 fuse?
The fuse has a rated current of 0.25 A.
What voltage is the Mersen R078905 rated for?
The fuse is rated for operation on circuits up to 400 V AC.
Is the R078905 a fast-acting fuse?
No. It has an SA semi time-delay characteristic, allowing it to tolerate normal inrush currents while protecting against sustained faults.
Where is the Mersen R078905 typically installed?
It is designed for installation in compatible 6.3 × 32 mm fuse holders used in industrial control panels, instrumentation and electronic equipment.
Trusted Circuit Protection from Mersen
Mersen ceramic miniature fuses are trusted by panel builders, machine manufacturers and electrical engineers worldwide to deliver dependable overcurrent protection for industrial control systems and electronic equipment.
