SMA SUNNY BOY 4000-US - Exchanging the Fuses; Exchanging the GFDI Fuse Within the Sunny Boy

Maintenance SMA America, LLC
84 SB30-40US-IUS103030 Installation Guide
10.5 Exchanging the fuses
10.5.1 Exchanging the GFDI fuse within the Sunny Boy
1. Turn OFF all AC and DC switches and/or breakers.
2. Wait for at least 5 minutes.
3. Open the Sunny Boy as described in section 4.1”Opening the Sunny Boy” (page17).
4. Exchange the fuse.
For correct fuse location please refer to section 6.7.2”DC input grounding” (page48).
5. Ensure that the fuse is completely inserted in the clamp.
6. Close the Sunny Boy.
7. Turn ON all AC and DC switchens and/or breakers.
CAUTION
Risk of fire due to incorrectly dimensioned fuse.
Injuries due to fire.
For continous protection, only replace fuses with fuses of same type and size.