Mersen positions A6K450R as a Class RK1 fast-acting current-limiting fuse, specified at 450A across a 600VAC / 300VDC system rating, suited to high-fault-current feeder and backup protection in a blade format.
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A6K450R is a A6K-R product from Mersen, built as a Class RK1 fast-acting current-limiting fuse for high-fault-current feeder and backup protection. The configuration combines a 450A current rating, 600VAC / 300VDC, blade mounting, and Class RK1 current-limiting protection with a 200kA AC interrupting rating. Confirm installation details and coordination against the official Mersen datasheet before placing it into a design.
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