AC Voltage Configuration Automatic Grid Voltage Detection
SB3000US-4000US-11-SE1607 SMA America 4-3
Automatic Grid Voltage Detection
The Sunny Boy is designed to automatically detect which grid voltage it is feeding
if a neutral is connected to the inverter. Depending upon the voltage and phase
angle between L1-N and L2-N, the inverter will determine if it is connected to a
208
V or 240 V grid. Table 4-1 lists the voltage and frequency limits for the AC
connection.
Table 4-1 Voltage and Frequency Limits for the
Voltage Range for 208 V nominal, line to line 183 V - 229 V
Voltage Range for 240 V nominal, line to line 211 V - 264 V
Frequency Range 59.3 Hz - 60.5 Hz
AC Connection