SG33/40CX/50CX String Inverter

Input (DC)

Max. PV input voltage
1100 V
Min. PV input voltage / Startup input voltage
200 V / 250 V
Nominal input voltage
585 V
MPP voltage range
200 – 1000 V
MPP voltage range for nominal power
550 – 850 V
No. of independent MPP inputs
3 | 4 | 5
Max. number of PV strings per MPPT
2
Max. PV input current
78 A | 104 A | 130 A
Max. current for input connector
30 A
Max. DC short-circuit current
120 A | 160 A | 200 A

Output (AC)

Max. AC output power
36.3 kVA @ 40 °C / 33 kVA @ 45 °C | 44 kVA @ 40 ℃ / 40 kVA @ 45 ℃ | 55 kVA @ 40 ℃ / 50 kVA @ 45 ℃
Max. AC output current
55.2 A | 66.9 A | 83.6 A
Nominal AC voltage
3 / N / PE, 230 / 400 V
AC voltage range
312 – 528 V
Nominal grid frequency / Grid frequency range
50 Hz / 45 – 55 Hz, 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

Euro. efficiency
98.30 %
Max. efficiency
98.60 %

Protection and Function

Overvoltage protection
DC Type II / AC Type II
Grid monitoring
Ground fault monitoring
Insulation monitoring
Night SVG function
DC reverse connection protection
AC short-circuit protection
Leakage current protection
AC switch
DC switch
PV string current monitoring
Islanding Protection
PID recovery function

General Data

Dimensions (W x H x D)
595 × 702 × 310 mm
Weight
50 kg
Isolation method
Transformerless
Degree of protection
IP66
Night power consumption
≤2 W
Operating ambient temperature range
-30 – 60 °C (> 45 °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: Wi-Fi, Ethernet
Compliance
IEC 62109, IEC 61727, IEC 62116, IEC 60068, IEC 61683, VDE-AR-N 4105:2018, VDE-AR-N 4110:2018, IEC 61000-6-3, EN 50438, AS/NZS 4777.2:2015, CEI 0-21, VDE 0126-1-1/A1 VFR 2014, UTE C15-712-1:2013, DEWA
Grid Support
Q at night, LVRT, HVRT, active & reactive power control, power ramp rate control
Type designation
SG33CX
DC connection type
MC4 (max. 6 mm²)
AC connection type
OT or DT terminal (max. 70 mm²)

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