Connecting The Ac Cable - SMA Sunny Tripower X 12 Operating Manual

6 Electrical Connection
Procedure
6. Connect to the multifunction relay (optional).
7. Connect to the digital inputs (optional).
8. Connect the PV modules.
6.4

Connecting the AC Cable

Requirements:
☐ The grid voltage must be within the permissible range. The exact operating range of the
inverter is specified in the operating parameters .
Procedure:
1. Disconnect the miniature circuit breaker from all 3 line conductors and secure against
reconnection.
2. Ensure that the DC load-break switch is in the O
position.
3. If your country requires the DC load-break switch to
be protected against reconnection, secure the DC
load-break switch against reconnection with a
padlock.
42 STPxx-50-BE-en-11
SMA Solar Technology AG
See
Connection to the Multifunc-
tion Relay
Connection to digital input
DI 5-6
DC connection
a = 14.5
b = 19.0
c = 5.0
mm
Operating manual