SMA SUNNY BOY 5000-US Installation Manual page 35

SMA America, LLC
AC Grounding
The AC outputs and the neutral conductors are not connected with PE
The circuits of the AC input and the AC output are isolated from the enclosure. The
electrically qualified person is responsible for grounding the plant according to Section
250 of the National Electrical Code ANSI/NFPA 70.
The Sunny Boy must be connected to the AC grounding conductor of the power distribution
grid via the ground terminal (PE) (see section 4.2 "Locating Internal Component Parts"
(page 18)).
PV Grounding
The grounding conductor in the framework of the PV array must be connected to the PV grounding
conductor and the DC grounding conductor (see section 4.2 "Locating Internal Component Parts"
(page 18)). The cross-section of the grounding conductor corresponds to the cross-section of the
largest conductor in the DC system.
DC Grounding Conductor
A DC grounding conductor may be required by the Authority Having Jurisdiction (AHJ). Use the
connecting terminal plate for the PV grounding conductor and DC grounding conductor (see section
4.2 "Locating Internal Component Parts" (page 18)).
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Electrical Connection
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