| 
 Sunny Boy 4000US Specifications  | 
| 
 Input Data (DC)   | 
| Recommended Max. PV Power (Module STC)  | 
4375 W @ 208 V / 5000 W @ 240 V | 
| Max. DC Voltage  | 
600 V | 
Peak Power  Tracking Voltage  | 
220 V - 480 V @ 208 V 250 V - 480 V @ 240 V | 
DC Max. Input Current  | 
18 A | 
Number of Fused  String Inputs  | 
2 (inverter), 4 x 15 A (DC disconnect) | 
PV Start Voltage  (adjustable)  | 
285 V | 
| 
 Output Data (AC)   | 
| AC Nominal Power  | 
3500 W @ 208 V /  4000 W @ 240 V | 
AC Maximum  Output Power  | 
3500 W @ 208 V /  4000 W @ 240 V | 
AC Maximum  Output Current  | 
17 A | 
AC Nominal Voltage / Range  | 
183 - 229 V @ 208 V 211 - 264 V @ 240 V | 
211-264V@240V AC Frequency / Range  | 
60 Hz /  59.3 Hz - 60.5 Hz | 
| Power Factor  | 
0.99 @ nominal power | 
| Efficiency  | 
| Peak Inverter Efficiency  | 
96.8 % | 
| CEC Weighted Efficiency  | 
95.5 % @ 208 V 96.0 % @ 240 V | 
| 
 Mechanical Data   | 
| Dimensions W x H x D in inches  | 
17.8 x 13.8 x 9.3 | 
| Weight / Shipping Weight  | 
88 lbs / 94 lbs | 
| Ambient Temp. Range  | 
-13 to +113 -F | 
| Power Consumption: standby / nighttime  | 
< 7 W / 0.1 W | 
| Topology  | 
PWM, true sine wave, current source | 
| Cooling Concept  | 
Low frequency transformer, true sinewave | 
| Mounting LocationIndoor / Outdoor (NEMA 3R)  | 
Included/Included | 
| 
 Features   | 
| LCD Display  | 
included | 
Lid Color:  aluminum red blue yellow  | 
 included optional optional optional  | 
| Communication: RS485 / Wireless  | 
optional/optional | 
| Warranty | 
10 year  | 
| Compliance: IEEE-929, IEEE-1547, UL 1741, UL 1998, FCC Part 15 A & B  |