SMA VOLTAGE STABILIZER - Manual (Page 7)

SMA Solar Technology AG 2 Safety
Installation Guide Ukonstanter-IEN103610 7
2 Safety
2.1 Appropriate Usage
The voltage stabilizer connects the Sunny Central with the public power distribution grid in order to
secure the internal power supply of the inverter. The voltage stabilizer reduces fluctuating grid
voltages in order to ensure a constant power supply to the Sunny Central.
The voltage stabilizer may only be used with a specially adapted Sunny Central xxxHE-11 device.
If a voltage stabilizer is installed later as an upgrade, SMA Solar Technology AG must be contacted
about the modification of the inverter.
Figure 1: Principle of the voltage stabilizer
Any other usage or installation of components and modifications than described in the usage
regulations jeopardize the operational safety of the device and void all warranty claims as well as
the operation permission.
Position Description
A Power distribution grid
B Voltage stabilizer
C Sunny Central
A B C
SMA
SUNNY CENTRAL 630HE