Appendix D: Safedc - SolarEdge Delta SE12.5K Installation Manual

Appendix D: SafeDC™

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, follow the instructions below to disconnect DC
power:
1. 1. Move the inverter P/ON/OFF switch to OFF (0).
2. Disconnect the AC to the inverter by turning OFF the circuit breakers on the
distribution panel.
WARNING!
SafeDC complies with IEC60947-3 when installing the system with a worst case
SafeDC voltage (under fault conditions) < 120V.
The worst case voltage is defined as: Voc,max+ (String Length-1)*1V, where:
Voc,max = Maximum Voc (at lowest temperature) of the PV module in the
string (for a string with multiple module models, use the max value)
String Length = number of power optimizers in the string
Three Phase System MAN-01-00505-1.5
Appendix D: SafeDC™ 59