Electrical connection SMA America, LLC
36 SB30-40US-IUS103030 Installation Guide
7. Turn the AC breaker on.
6.3 Bottom view and dimensions
The DC input from the PV array (via the DC disconnect enclosure) and the output to the AC utility grid
connect to the inverter inside the case of the Sunny Boy. The internal AC and DC wiring terminals
accept a maximum wire size of 6 AWG. Knockouts are provided on the bottom of the inverter.
Disconnecting the Sunny Boy
• First turn off all AC disconnects and turn the SMA DC Disconnect to position "0".
• The AC side must always be disconnected before the DC side.
• After the Sunny Boy is de-energized, disconnect the wiring in the reverse order from
above.
NOTICE
Ingress of water due to enlarged enclosure openings.
Damage to the inverter will result.
• The AC and DC knockouts are sized for
3
⁄
4
in. rigid conduits.
• Do not enlarge the knockout holes.
1
⁄
2
in. Communication
cable glands with
filler‑plugs
3
⁄
4
in. DC
knockout
1
⁄
2
in. AC
knockout
To Next Page
Loading...
