Mersen MI5FA40V4 4A 5×20mm High-Speed Fuse
● Check availabilityCheck the catalog attributes of Mersen MI5FA40V4, a 4A 5×20mm high-speed fuse rated 400 VAC, with its series speed, voltage class and connection style for technical purchasing.

Check the catalog attributes of Mersen MI5FA40V4, a 4A 5×20mm high-speed fuse rated 400 VAC, with its series speed, voltage class and connection style for technical purchasing.
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Mersen MI5FA40V4 is a 4A 5×20mm high-speed fuse in the 5FA family, rated 400 VAC. Review the application voltage and available fault current before final selection. For engineers matching protection to operating conditions, this model combines the series characteristic with a clearly defined current rating. Its ferrule / clip configuration supports power electronics, pcb protection. The page is structured around the exact Mersen catalog number for easier procurement.