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A PV system includes a 600V DC disconnect with a fault current rating of 10...

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A PV system includes a 600V DC disconnect with a fault current rating of 10 kA. The available fault current from the inverter is 12 kA. What must be done to comply with NEC 110.10?

A.

Install a current-limiting fuse upstream

B.

Replace the disconnect with a 15 kA-rated unit

C.

Reduce the array size to lower fault current

D.

No action needed; the rating is sufficient

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