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.
