SG33/55CX-US | North America String Inverter

Input (DC)

Max. PV input voltage
1000 V
Min. PV input voltage / Startup input voltage
200 V / 200 V
Nominal input voltage
710 V
MPP voltage range
200 – 1000 V
MPP voltage range for nominal power
500 – 850 V
No. of independent MPP inputs
4 | 6
Max. number of PV strings per MPPT
2 / 2 / 2 / 2 | 2 / 2 / 2 / 2 / 2 / 2
Max. PV input current
26 A * 4 | 26 A * 6
Max. current for input connector
15 A
Max. DC short-circuit current
40 A * 4 |. 40 A * 6

Output (AC)

Max. AC output power
33 kVA @ 45 ℃ (113 ℉) / 30 kVA @ 50 ℃ (122 ℉) | 55 kVA @ 45 ℃ (113 ℉) / 50 kVA @ 50 ℃ (122 ℉)
Max. AC output current
39.7 A | 66.2 A
Nominal AC voltage
3 / N/PE, 277 / 480 V
AC voltage range
422 – 528 V
Nominal grid frequency / Grid frequency range
60 Hz / 55 – 65 Hz
THD
< 3 % (at nominal power)
DC current injection
< 0.5 % In
Power factor at nominal power / Adjustable power factor
>0.99 / 0.8 leading – 0.8 lagging
Feed-in phases / Connection phases
3 / 3

Efficiency

Max. efficiency
98.70 %
CEC efficiency
98.50 %

Protection and Function

Overvoltage protection
DC Type II / AC Type II
Grid monitoring
Anti-PID function
YES
DC reverse connection protection
AC short-circuit protection
Leakage current protection
AC switch
DC switch
PV string current monitoring
Arc fault circuit interrupter (AFCI)

General Data

Dimensions (W x H x D)
780 × 930 × 310 mm 30.7 × 36.6 × 12.2 in
Weight
62 kg 136.7 lb
Isolation method
Transformerless
Degree of protection
NEMA 4X
Night power consumption
< 2 W
Operating ambient temperature range
-30 to 60 ˚C (> 50 ˚C derating)
Allowable relative humidity range (non-condensing)
0 – 100%
Cooling method
Smart forced air cooling
Max. operating altitude
4000 m (> 3000 m derating)
Display
LED, Bluetooth + APP
Communication
RS485 / optional: WiFi, Ethernet | Third party Communication : SunSpec Modbus
Compliance
UL1741, UL 1741 SA, CA Rule 21, IEEE 1547, IEEE 1547.1, CSA C22 .2, No.107.1-01, UL 1699B and FCC Part 15
Grid Support
LVRT, HVRT, active & reactive power control and power ramp rate control
DC connection type
Screw clamp terminal (10AWG,Cu or Al )
AC connection type
OT(2/0AWG,Cu or Al )

Standard Accessories

DC main output load switch
PV specific application SPD
PV SPD failure monitoring
PV self power supply for internal loads
Communication port
Current and voltage monitoring for each string