SG33K3J | Japan String Inverter

Input (DC)

Max. PV input voltage
1100 V
Min. PV input voltage / Startup input voltage
200 V / 250 V
Nominal input voltage
660 V
MPP voltage range
200 – 1000 V
MPP voltage range for nominal power
490 – 850 V
No. of independent MPP inputs
3
Max. number of PV strings per MPPT
3
Max. PV input current
99 A (33 A / 33 A / 33 A)
Max. current for input connector
12 A
Max. DC short-circuit current
108 A (36 A / 36 A / 36 A)

Output (AC)

Max. AC output power
33300 VA @ 50 °C / 38900 VA @ 50 °C (settable)
Max. AC output current
53.5 A
Nominal AC voltage
3 / PE, 420 V / 440 V
AC voltage range
365 – 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
98.50 %

Protection and Function

Overvoltage protection
DC Type II / AC Type II
Grid monitoring
Ground fault monitoring
Insulation monitoring
DC reverse connection protection
AC short-circuit protection
Leakage current protection
AC switch
DC switch
PV string current monitoring
DC fuse
Yes (positive, 15 A)
Islanding Protection

General Data

Dimensions (W x H x D)
525 × 740 × 240 mm
Weight
48 kg
Isolation method
Transformerless
Degree of protection
IP65
Night power consumption
< 2 W
Operating ambient temperature range
-25 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
Graphic LCD
Communication
RS485
Grid Support
FRT 2017, active & reactive power control and power ramp rate control
Type designation
SG33K3J-10
DC connection type
MC4 (max. 6 mm²)
AC connection type
OT terminal (max. 50 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