SMA SC 500U Installation - Manual (Page 62)

SMA Solar Technology AG
62 SC500U-IUS093411 Installation Guide
16. Verify the absence of voltage with respect to ground at the AC clamp with an appropriate
meter.
☑ If there is a voltage present, the installation must be checked.
17. Verify the absence of voltage with respect to ground at the DC clamp with an appropriate
meter.
☑ If there is a voltage present, the installation must be checked.
10.3 Opening the Magnetics Cabinet
18. Switch off the Sunny Central as described in section 10.1 "Opening the Control Cabinet"
(page 60).
19. Make sure that no voltage is present as described in section 10.2 "Opening the Interface
Cabinet" (page 61).
CAUTION
The DC fuses in the Interface Cabinet become hot during operation.
Danger of burn injury due to hot components.
When working on the Sunny Central wear protective gloves.
20. Remove the 8 screws from the front of the magnetics
cabinet with a torx screwdriver.
21. Remove the wall by pulling it forward.
CAUTION
The transformers in the magnetics cabinet become hot during operation.
Danger of burn injury due to hot components.
• When working on the Sunny Central wear protective gloves.
Stop S tart