Mersen A6K4R is configured as a Class RK1 fast-acting current-limiting fuse; the primary electrical envelope is 4A, 600VAC / 300VDC, suited to high-fault-current feeder and backup protection in a cartridge / clip format.
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For high-fault-current feeder and backup protection, Mersen A6K4R provides a Class RK1 fast-acting current-limiting fuse within the A6K-R family. Electrical and mechanical selection centers on 4A, 600VAC / 300VDC, Class RK1 current-limiting protection with a 200kA AC interrupting rating, and the cartridge / clip format. Confirm installation details and coordination against the official Mersen datasheet before placing it into a design.
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