SMA SB 3000-US - Manual (Page 93)

SMA America, LLC 12 Technical Data
Installation Manual SB30-40-US-IA-en-34 93
Figure 31: Efficiency curve SB 3800-US-10/3800-US-12
12.1.3 Sunny Boy 4000-US
DC input
Maximum MPP voltage at 208 V nominal value 220 V to 480 V
Maximum MPP voltage at 240 V nominal value 250 V to 480 V
Input operating voltage range 250 V to 600 V
Maximum PV array input power 5,000 W
Maximum DC power 4,300 W
DC starting voltage 285 V
Maximum DC-DC input current 18 A
Maximum short-circuit current 25 A
Maximum backfeed current from the power distribution
grid to the PV array 30 A AC
DC voltage ripple ˂ 10%