Exchanging Pv String Fuses Within The Dc Disconnect - SMA SUNNY BOY 5000-US Installation Manual

Maintenance

10.5.2 Exchanging PV String Fuses within the DC disconnect

1. Disconnect the Sunny Boy on the AC and DC sides.
2. Wait 5 minutes until the residual voltage has been drained.
3. Open the DC disconnect as described in section 6.4 "Opening the DC Disconnect" (page 40).
4. Replace the fuse (1, 2, 3, or 4).
5. Close the DC disconnect as described in section 6.9 "Closing the DC Disconnect" (page 57).
6. Switch the AC and DC disconnect switches back on.
86 SB50US-80US-IA-en-36
2 4
1 3
1 2 3 4
UNGROUNDED GROUNDED
SMA America, LLC
2 4
GROUNDING
ELECTRODE
CONDUCTOR
1 3
1 2 3 4
UNGROUNDED GROUNDED L1 L2 N
Installation Manual