SMA America, LLC
Electrical Connection
Installation Guide
SB8-10TL-IUS103811
27
6 Electrical Connection
6.1 Safety
AC grounding
The Sunny Boy must be connected to the AC ground from the utility via the Ground Terminal (PE) (see
6.4 ”Sunny Boy connection area overview” (page 30)).
PV grounding
The PV array (frame) ground must be connected to the grounding electrode terminal (see 6.4 ”Sunny
Boy connection area overview” (page 30)). The size for the conductor is usually based on the size of
the largest conductor in the DC system.
DC grounding electrode conductor
A DC grounding electrode conductor may be required by the Authority Having Jurisdiction (AHJ). Use
the PV grounding and DC grounding electrode conductor terminal (see 6.4 ”Sunny Boy connection
area overview” (page 30)).
NOTICE
Ingress of water when mounting and installing the Sunny Boy.
Damage to the Sunny Boy will result.
• Do not open the Sunny Boy when it is raining or when high humidity is present
(> 95 %).
NOTICE
Touching the components can result in electrostatic discharges.
Damage to components will result.
• Ground yourself before touching a component.
Electrical installations
All electrical installations must be done in accordance with all local electrical codes and
the
National Electrical Code
®
, ANSI/NFPA 70. For installation in Canada the installations
must be done in accordance with applicable Canadian standards.
