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MERSEN FUSE 400V FA 0,4 A 6.32 MI6FA40V0,4
Mersen H084371 MI6FA50V4 high-speed 6.3 x 32 mm ceramic semiconductor fuse rated at 4 A and 500 V AC for clip mounting.
£2.49
Why Choose the Mersen H084371 High-Speed Miniature Fuse?
The Mersen H084371, catalogue reference MI6FA50V4, is a very fast-acting miniature semiconductor fuse engineered to protect sensitive electronic and semiconductor devices against damaging overcurrents and short circuits. As part of Mersen's 6.3 × 32 mm FA 500 V series, it delivers dependable protection for industrial electronics, power converters and automation systems.
With a rated current of 4 A and a 500 V AC voltage rating, the H084371 interrupts fault currents rapidly, helping minimise the thermal and electrical stress placed on semiconductor devices. Its ceramic construction and high interrupting capacity make it suitable for demanding industrial environments.
Manufactured in the industry-standard 6.3 × 32 mm cylindrical format, the fuse is designed for clip mounting in compatible fuse holders. Its compact design allows easy integration into electrical panels, OEM machinery and industrial control equipment.
Key Advantages
- Very fast-acting protection for sensitive semiconductor devices.
- 4 A rated current for industrial electronic applications.
- 500 V AC rated voltage.
- Very high 200 kA breaking capacity.
- Compact 6.3 × 32 mm ceramic construction.
- Clip mounting enables simple installation and replacement.
Key Features
- Mersen FA semiconductor miniature fuse series.
- Very fast-acting (FA) characteristic.
- 4 A rated current.
- 500 V AC rated voltage.
- 6.3 × 32 mm ceramic body.
- Clip mounting configuration.
- Designed for semiconductor and power electronics protection.
- RoHS, REACH and UKCA compliant.
Reliable High-Speed Protection for Semiconductor Circuits
Very fast-acting semiconductor fuses are designed to disconnect fault currents before excessive thermal energy can damage expensive power electronic components. Their rapid operating characteristic helps maximise equipment reliability while reducing the risk of costly failures.
The Mersen H084371 combines compact dimensions with high interrupting performance, making it ideal for industrial automation, electronic power supplies, converters, variable speed drives and OEM machinery where dependable semiconductor protection is essential.
Typical Applications
- Semiconductor protection.
- Industrial power converters.
- Variable speed drives.
- Electronic power supplies.
- Automation and control systems.
- OEM industrial equipment.
Technical Specifications
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| Current | 0.4 A | |
|---|---|---|
| Voltage | 400 V | |
| Device Type | Fuse link | |
| Fuse Type | Miniature, Semiconductor | |
| Fuse Class | Fast acting | |
| Manufacturer | Mersen | |
| Item number | H084371 | |
| Catalogue number | MI6FA50V4 | |
| Product type | High-speed miniature semiconductor fuse | |
| Series | Semiconductor Miniature Fuses Size 6 × 32 FA 500V | |
| Rated current | 4 A | |
| Rated voltage | 500 V AC | |
| Current type | AC | |
| Operating characteristic | Very fast-acting (FA) | |
| Fuse dimensions | 6.3 × 32 mm | |
| Mounting type | Clip mounting | |
| Body material | Ceramic | |
| Breaking capacity | 200 kA | |
| Pre-arcing I²t | 4.6 A²s | |
| Clearing I²t | 8 A²s |
Frequently Asked Questions
What is the Mersen H084371 used for?
The Mersen H084371 protects semiconductor devices and sensitive electronic circuits from damaging overcurrents and short circuits.
What is the current rating of the H084371 fuse?
The fuse has a rated current of 4 A.
What voltage is the Mersen H084371 rated for?
The H084371 is rated for operation at up to 500 V AC.
How is the Mersen H084371 installed?
The fuse is designed for clip mounting in a compatible 6.3 × 32 mm fuse holder.
Why is a very fast-acting fuse important?
A very fast-acting fuse disconnects fault currents rapidly, helping protect valuable semiconductor devices from excessive thermal and electrical stress.
Trusted Circuit Protection from Mersen
Mersen high-speed semiconductor fuses are trusted by panel builders, OEMs and industrial engineers to provide dependable protection for power electronics and sensitive semiconductor equipment.
