SMA SUNNY TRIPOWER X 20-US - Page 70

9 Disconnecting the product from voltage sources
SMA Solar Technology AG
Operating manualSTPxx-US-50-BE-en-1170
16. Check that there is no voltage between L1 and N,
L2 and N, and L3 and N at the AC terminal block
for connecting the utility grid. Use a suitable
measuring device for this purpose. To do this, insert
the test probes through the openings on the terminal
block.
<30V
17. Check that there is no voltage between L1 and
grounding conductor, L2 and grounding conductor,
and L3 and grounding conductor at the AC terminal
block for connecting the utility grid. Use a suitable
measuring device for this purpose.
<30V