Electrical connection SMA America, LLC
38 SB30-40US-IUS103030 Installation Guide
4. Pull off the switch handle.
5. Remove the cover of the SMA DC Disconnect by pulling it down. At the same time, carefully
move it forward at its lower edge.
6.6 AC wiring
Use maximum 6 AWG, +194 °F (+90 °C) rated copper wire for all AC wiring connections to the
Sunny Boy, although voltage drop and other considerations may dictate that larger size wires be
used. Use only solid or stranded wire but not fine stranded wire.
The following diagrams show the potential losses in AC wires related to the cable cross-section and
length. Use the following diagrams to determine the best wire size to use for your particular
installation.
All electrical installations must be done in accordance with the local electrical codes and
with the National Electrical Code
®
(NE, ANSI/NFPA 70).
See National Electrical Code
®
section 690-64(b)(1 and 2).
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