SMA SUNNY BOY 7000-US - DC Connection Requirements

SMA America, LLC Electrical Connection
SB50US-80US-IA-en-36 SB50US-80US-IA-en-36 47
Simplified Circuit Diagram of a PV Plant
6.6.1 DC Connection Requirements
Cable Dimensioning
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.
• Route the PV lines precisely in the entire PV plant and do not coil.
Correct String Configuration
• Use "Sunny Design" on www.SMA-America.com for string configuration.