The Mersen A4J80 product is a Class J fast-acting current-limiting fuse; its primary electrical envelope is 80A, 600VAC / 300VDC, suited to feeders, panelboards and general high-fault-current circuits in a blade format.
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Designed around feeders, panelboards and general high-fault-current circuits, A4J80 combines the A4J platform with Class J fast-acting current-limiting fuse characteristics. Electrical and mechanical selection centers on 80A, 600VAC / 300VDC, Class J current limitation with 200kA AC and 100kA DC interrupting ratings, and the blade format. Confirm installation details and coordination against the official Mersen datasheet before design release.
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