SMA SC 200 Installation - Manual (Page 57)

SMA Solar Technology AG External Connections
Installation Guide SC20_25_35-IEN094521 57
6.3 Connecting the External PE Connection
(Sunny Central 250HE only)
The grid connection form of the Sunny Central is an IT grid. The PE rail in the AC cabinet must be
incorporated in the equipotential bonding to ground the Sunny Central 250HE housing.
The following diagram shows the connection point of the external PE connection.
1. Route the cable through the base opening into the AC cabinet.
2. Connect the PE cable in the AC cabinet.
☑ The PE cable is connected.
PE cable sizing
Use PE cables with a line cross section of at least 1 x 50 mm
2
.
Position of the PE rail
The exact position of the PE rail can be determined with the help of the equipment identifier
and the circuit diagram enclosed.