SMA America, LLC 11 Cleaning and Care
Installation Manual SB30-40-US-IA-en-33 89
Additional required mounting material (not included in the scope of delivery):
☐ 4 functional and correctly rated string fuses must be available.
1. Open the DC Disconnect (see Section 9.3 "Opening the DC Disconnect", page 59).
2. Replace all string fuses:
• Remove the fuse extractor with ground fuse from
the fuse holder.
• Remove the defective string fuse from the fuse extractor and insert the new string fuse into
the fuse extractor.
• Insert the fuse extractor with new string fuse into
the fuse holder.
3. Close the DC Disconnect (see Section 9.4).
4. Commission the inverter (see Section 8).
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