For engineering selection, Mersen HSJ3 is a Class J high-speed current-limiting fuse; key ratings are 3A and 600VAC / 500VDC, suited to drives, motor controllers and power-semiconductor circuits in a cartridge / clip format.
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Mersen positions HSJ3 in the HSJ family for drives, motor controllers and power-semiconductor circuits, using a Class J high-speed current-limiting fuse format. Key selection data includes 3A, 600VAC / 500VDC, low-I²t Class J protection with 200kA AC and 100kA DC interrupting ratings, and a cartridge / clip installation format. Confirm installation details and coordination against the official Mersen datasheet before design release.
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