SMA SC 500HE-US Installation - Manual (Page 47)

SMA America, LLC 8 Electrical Connection
Installation Manual SC500HEUS-IA-US_en-14 47
8 Electrical Connection
This section describes how the Sunny Central is connected to the grid and to the PV modules, and
what precautions must be observed in order to avoid material and personal damages. It provides
information on the necessary cable sizes and the magnitude of the torque for the cable connection.
8.1 Safety
/05*$&
The components in the Sunny Central can be damaged by electrostatic discharge.
• When working on the Sunny Central and when handling the components observe all ESD
safety regulations.
• Discharge electrostatic charge by touching the grounded Sunny Central enclosure.
• Only then is it safe to touch any electronic components.
/05*$&
Seeping moisture during installation of the Sunny Central.
Damage to the electronics of the Sunny Central.
• Do not open the Sunny Central when it is raining or when a high humidity is present (> 95%).
• For conduit hubs, use only UL Listed rainproof, or wet location hubs complying with UL 514B
for entry into the enclosure.