SMA Sunny Boy 3000US - Exchanging the PV String Fuses Within the SMA DC-Disconnect

Maintenance Exchanging the Fuses
SB3000US-4000US-11-SE1607 SMA America 9-5
Exchanging the PV String Fuses within the SMA DC-
Disconnect
1. Turn OFF all AC and DC switches and/or breakers.
2. Wait for at least 5 minutes.
3. Open the Sunny Boy.
• Exchange the fuses having regard to the information on the next page.
Figure 9-3 Position of Fuses within the SMA DC-Disconnect
4. Close the Sunny Boy.
5. Turn ON all AC and DC switches and/or breakers.
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