SMA Sunny Boy 6000US - Exchanging the PV String Fuses Within the SMA DC-Disconnect

SMA Solar Technology AG
94 SB50US-80US-IUS094030 Installation Guide
9.4.2 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 SMA DC-Disconnect as described in section 5.4"Opening the SMA DC-Disconnect
(if applicable)" (page41).
4. Exchange the fuses having regard to the information on the next page.
5. Close the SMA DC-Disconnect.
6. Turn ON all AC and DC switches and/or breakers.