SMA SC 100LV-560HE - Manual (Page 60)

Electrical Connection SMA Solar Technology AG
60 SC125_560HE-IEN083220 Installation Guide
5.2.7 DC connection
In the DC / inverter cabinet of the Sunny Central, there are NH fuses (except in the Sunny
Central 500HE and Sunny Central 560HE) which allow string distribution boxes to be connected.
The cables are fed through the socket and the base of the cabinet:
1. Open the base plates in the front of the cabinet and pull the cable into the inside of the cabinet.
2. For strain relief of the cables, fix the cable clamp rail with cable clips. The cable clips are
included in the delivery.
3. The connection of the DC cables have to be made with cable lugs directly at the NH fuse
holders.
The NH fuse holders are located in the lower area of the DC cabinet. Appropriate ring cable lugs
have to be pressed onto the ends of the power cables.
Number of the fused inputs in the Sunny Central
The number of fused DC inputs depends on the device type and is listed in the installation
requirements.
ATTENTION!
Damage to the Sunny Central or PV generator through incorrect cabling.
When connecting the DC cables, it is obligatory to follow the circuit diagram provided.
ATTENTION!
Operational reduction through too low voltage capability!
Ensure that the DC cables are appropriately voltage-proof!
ATTENTION!
Operational reduction through poor sealing!
All cable insertions must be closed hermetically against the environment. This prevents the
cooling air to be drawn past the air inlet filters.
Dimensioning of the connection point
The layout of the connection point is described in the installation requirements.