Electrical Connection
SMA America, LLC
48
SB50US-80US-eng-IUS112633
Installation Guide
Simplified Circuit Diagram of a PV Plant
6.5.1 DC Connection Requirements
Line Sizing
All electrical installations must be carried out according to all of the applicable on site electrical
standards and the
National Electrical Code
®
ANSI/NFPA 70 or the
Canadian Electrical Code
®
CSA C22.1 and the applicable standards in Canada.
When selecting the cable type and the line cross section, observe the following requirements
depending on the type of installation:
• For all DC copper wire cable connections, use size 10 ... 6 AWG (6 ... 16 mm²), which is
designed for +194 °F (+90 °C).
• Use only solid wire or rough wire strands. Do not use fine-wire strands.
Correct String Configuration
• Use "Sunny Design" on www.SMA-America.com for string configuration.
