SMA SC 200 Installation - Manual (Page 45)

SMA Solar Technology AG Internal Electrical Connections
Installation Guide SC20_25_35-IEN094521 45
5.7 Connecting Insulation Monitoring (optional)
The 2-core connection line of the insulation monitoring system is located in the transfer duct. It connects
the DC cabinet to the insulation monitoring system. The insulation monitoring system is located in the
DC cabinet.
The following diagram shows the position of the insulation monitoring system in the Sunny
Central 250 as an example.
1. Connect the insulation monitoring system.
☑ The insulation monitoring system is connected.
Position of the insulation monitoring system
The exact position of the insulation monitoring system differs depending on the model. The
exact position of the insulation monitoring system can be determined with the help of the
equipment identifier and the circuit diagram enclosed.