SMA Solar Technology AG
Electrical Connection
Installation Guide
SB11_17-IEN084820
23
Further Procedures
➤ Pressure screw and, where applicable, the fastening case including the sealing ring have been
guided over the AC cable.
1. Guide the threaded sleeve over the AC cable.
2. Insert the protective earth PE (green-yellow) in the
screw terminal with the earth sign on the socket
element and tighten the screw.
3. Insert the neutral conductor N (blue) in the screw
terminal 1 on the socket and tighten the screw.
4. Insert the live wire L (brown or black) in the screw
terminal 2 and tighten the screw.
5. Leave screw terminal 3 free.
6. Screw the threaded sleeve onto the socket element.
7. Screw the pressure screw tightly onto the threaded
sleeve.
☑ AC connection socket has been screwed together.
8. Seal the socket element with the provided protecting cap if the Sunny Boy is not immediately
connected.
9. Insert the AC connection socket into the AC socket on the Sunny Boy. If applicable, remove the
AC socket's protection cap beforehand.
10. Screw the AC connection socket's threaded ring tightly onto the AC socket on the Sunny Boy.
The threaded ring acts as a seal and a cable grip for the AC connection socket.
☑ The AC cable is connected to the Sunny Boy.
DANGER!
Danger to life due to high voltages in the Sunny Boy!
• Do not switch on the line circuit breaker until the PV generator has been connected
and the Sunny Boy is securely closed.
1
2
3
PE
N
L