Appendix C: SafeDC™
When AC supply to the inverter is shut off (by shutting off the AC breaker at the site), or
when the inverter ON/OFF switch is turned to OFF, the DC voltage drops to a safe
voltage of per optimizer.
The SolarEdge inverters are certified for compliance with the following standards as
disconnection devices for PV generators, meaning that they can replace a DC
disconnect:
IEC 60947-3:1999 + Corrigendum: 1999 + A1:2001 + Corrigendum 1:2001 + A2:2005;
DIN EN 60947-3
VDE 0660-107:2006-03
IEC 60364-7-712:2002-05
DIN VDE 0100-712:2006-06.
In compliance with these standards, the disconnection mechanism operates as follows:
1. Turn the inverter ON/OFF/P switch, located at the bottom of the inverter, to OFF, or
disconnect the AC by shutting off the AC breaker at the site. The DC voltage
displayed on the SetApp screen begins to decrease.
2. When the DC voltage reaches a safe voltage, the PV connectors at the input to the
inverter can be disconnected. A galvanic separation then exists between the PV
array and the inverter.
Single Phase Inverter with HD-Wave Technology Installation MAN-01-00540-1.0
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Appendix C: SafeDC™
