Mersen FESF300 is built around a 300A HRC-II Class C fast-acting fuse design combining 600V AC / 460V DC ratings and 200kA AC / 40kA DC interrupt performance for short-circuit and motor-controller back-up protection, with FESF bolt-in blade construction.
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As part of the Mersen FES range, FESF300 is configured as a 300A HRC-II Class C fast-acting fuse. Rated duty is 600V AC / 460V DC, supported by 200kA AC / 40kA DC breaking capacity. Installation uses FESF bolt-in blade construction, while the series documentation cites IEC 269-2-1|BS 88 for compliance and selection.
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