SMA SB 6000TL‑US Installation - Manual (Page 29)

SMA America, LLC 5 Electrical Connection
Installation Manual SB6-11TL-US-IA-en-13 29
AC Grounding
The AC input and AC output circuits are isolated from the enclosure and system grounding, if required
by Section 250 of the National Electrical Code, ANSI/NFPA 70, is the responsibility of the installer.
PV Grounding
The Photovoltaic System Grounding shall be installed per the requirements of Sections 690.41
through 690.47 of the National Electrical Code, ANSI/NFPA 70 and is the responsibility of the
installer.
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 5.3 "Connection Area of the Sunny
Boy", page 32). 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
terminal block for the PV grounding conductor and DC grounding conductor (see Section
5.3 "Connection Area of the Sunny Boy", page 32).
The AC outputs and the neutral conductors are not bonded to ground
The Sunny Boy must be connected to the AC grounding conductor of the power distribution grid
via the ground terminal (PE) (see Section 5.3 "Connection Area of the Sunny Boy", page 32).