Grid-tied Inverter Sungrow 50kW | SG50CX
Officially distributed by XBSolar Joint Stock Company, the String Inverter series features 5 independent MPPTs with maximum efficiency up to 98.7%, compatible with various types of solar panels (mono, poly, bifacial, and thin-film technology). With a range of superior features, users can experience seamless operation and maintenance through convenient communication options and monitoring capabilities via the Isolarcloud web platform or application.
- The solid, lightweight design of the all-aluminum alloy casing, weighing only 62 kg, ensures easy installation. All Sungrow solar inverters are designed with separate boards for easy replacement and maintenance over the operational lifespan.
- The integrated software allows users to monitor intelligent current across each string, scan, and diagnose online on the current-voltage curve. Based on advanced system and diagnostics, it accurately locates abnormal PV positions. Remote data upgrades provide convenient O&M operations.
- The integrated Recovery PID function addresses the effects of PID on the system. PID, or Potential-Induced Degradation, is a complex process with various influencing factors. It leads to degradation in both individual solar panels and entire strings over time. The system’s power output can decrease by up to 90% due to PID. The Recovery PID function can repair degraded PV panels and increase productivity by up to 10%.
- Sungrow 50kW grid-tie inverter is designed to be compatible with both copper and aluminum AC cables, providing flexibility in design and optimizing installation costs. It can also connect two DC cables in 1, replacing the traditional method of connecting DC cables, thus saving DC electrical cable costs.
- With an IP66 protection rating for the inverter, IP68 rating for the cooling fan, and corrosion protection rating of C5, the Sungrow 50kW grid-tie inverter is capable of withstanding extremely harsh environments. It is well-suited for various installation scenarios and harsh environments such as coastal areas in Vietnam.
- The inverter features night-time reactive power (Q) function, Low Voltage Ride Through (LVRT) capability to overcome low voltage incidents, High Voltage Ride Through (HVRT) capability to withstand high voltage events, active power and reactive power control, and ramp rate control for power increase.
Grid safety:
Sungrow 50kW grid-tied inverter integrates protection features such as reverse polarity protection for DC, short-circuit protection for AC, ground fault protection, along with surge protection rated at Level II for both DC and AC. It complies with safety grid regulations and adheres to the following standards: IEC 62109, IEC 61727, IEC 62116, IEC 60068, IEC 61683, VDE-AR-N 4110:2018, VDE-AR-N 4120:2018, IEC 61000-6-3, EN 50549, AS/NZS 4777.2:2015, CEI 0-21, VDE 0126-1-1/A1 VFR 2014, UTE C15-712-1:2013, DEWA.
Specifications:
| Circuit Diagram | Power Efficiency Curve |
 |
 |
| Input (DC) |
SG50CX |
| Maximum input voltage for PV panel |
1.100 V |
| Minimum input voltage for PV panel / Startup input voltage |
200 V / 250 V |
| Nominal operating voltage |
585 V |
| MPPT Voltage Range |
200 – 1.000 V |
| MPPT Voltage Range for Rated Power |
550 – 850 V |
| Number of independent MPP inputs |
5 |
| Maximum number of string inputs per MPPT |
2 |
| Maximum input current per solar panel |
130 A |
| Maximum input current at the input connection |
30 A |
| Maximum DC short-circuit current |
200 A |
| Output (AC) |
|
| AC output power |
55kVA @ 40℃ / 50kVA @ 45℃ |
| Maximum AC output current |
83,6 A |
| Rated AC voltage |
3 / N / PE, 230 / 400 V |
| AC voltage range |
312 – 528 V |
| Rated grid frequency / Operating range |
50 Hz / 45 – 55 Hz, 60 Hz / 55 – 65 Hz |
| Total Harmonic Distortion (THD) |
< 3 % (at rated power) |
| DC current injection |
< 0,5 % In |
| Power factor at rated power / Power factor adjustment |
>0.99 / 0.8 leading – 0.8 lagging |
| Number of input phases / Number of output phases |
3 / 3 |
| Efficiency |
|
| Maximum efficiency / European standard efficiency |
98,7% / 98,4% |
| Protection features |
|
| Reverse polarity DC connection protection |
Yes |
| AC short-circuit protection |
Yes |
| Ground fault protection |
Yes |
| Grid monitoring |
Yes |
| DC switch / AC switch |
Yes/ No |
| Monitoring of string current |
Yes |
| Reactive power injection at night | Yes |
| PID recovery function |
Customizable |
| Overvoltage protection |
DC Class II / AC Class II |
| General information | |
| Dimensions (Width * Height * Depth) | 782 * 645 * 310 mm |
| Weight | 62 kg |
| Isolation method | Transformerless |
| Protection level | IP66 |
| Power consumption (nighttime) | ≤ 2 W |
| Operating temperature range | -30 to 60°C (> 45°C reduces power) |
| Allowed relative humidity range (non-condensing) | 0 – 100 % |
| Cooling method | Intelligent air cooling |
| Maximum operating altitude | 4,000 m (> 3,000 m reduces power) |
| Display | LED, Bluetooth+APP |
| Communication | RS485 / Optional: Wi-Fi, Ethernet |
| DC connection type | MC4 (Max. 6 mm²) |
| AC connection type | OT or DT connector (max. 70 mm²) |
| Certifications | 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 | Supports reactive power injection at night, maintains grid connection during voltage sags and swells, controls active and reactive power, controls power ramp rate. |
| Supplier and warranty provider in Vietnam | XBSolar – Sungrow Service Center |
