Grid-tied Inverter Sungrow 50kW Premium | SG50CX – Premium
Officially distributed by XBSolar Joint Stock Company, the String Inverter series features 5 independent MPPTs with a maximum efficiency of up to 98.7%. It is compatible with various types of solar panels (mono, poly, double-glass panels, and thin-film technology). Equipped with a range of outstanding features, users can enjoy a comfortable experience with communication and monitoring options, facilitating easy operation and maintenance through the Isolarcloud web platform or application.
- The solid design of the full aluminum alloy casing, weighing only 62 kg, ensures easy installation. All Sungrow solar inverters are designed with separate boards for easy replacement and maintenance during operation.
- The integrated software allows users to monitor intelligent current on each string, scan, and diagnose online based on current-voltage curves. Leveraging advanced system and diagnostics, it accurately identifies abnormal PV positions. Remote data upgrades facilitate convenient operations and maintenance (O&M).
- PID (Potential-Induced Degradation) is a complex process with various influencing factors. It can cause a significant reduction in the performance of solar panels and entire strings over time, potentially leading to up to a 90% decrease in system power output. The Recovery PID function is designed to address this issue by repairing degraded PV panels, thereby increasing system productivity by up to 10%.
- Sungrow 50kW Premium grid-tied inverter is designed to be compatible with both copper and aluminum AC cables, offering flexibility in design and optimizing installation costs. It can also connect two DC cables into one, replacing the traditional method of DC cable connection, thereby saving on DC electrical cable costs.
- With an IP66 rating for the inverter and IP68 rating for the cooling fan, along with corrosion protection rating of C5, the Sungrow 50kW Premium grid-tied inverter is well-equipped to withstand harsh environmental conditions, making it suitable for various installation scenarios, including those in coastal regions like Vietnam.
- The Arc Fault Circuit Interrupter (AFCI) function integrated into the Sungrow inverter provides enhanced accuracy in detecting arc faults and quicker error elimination, ensuring the safety of your solar power system. Additionally, it features nighttime reactive power (Q) function, low voltage ride-through (LVRT) capability to overcome low voltage events, high voltage ride-through (HVRT) capability to handle high voltage events, active power and reactive power control, as well as power ramp rate control.
Grid safety:
The Sungrow 50kW Premium grid-tied inverter integrates features for protection against reverse polarity in DC, AC short circuit protection, ground fault protection, and also includes surge protection rated at I+II for DC and II for AC. It complies with safety regulations and adheres fully to standards such as 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 50549-1/2, AS/NZS 4777.2:2015, CEI 0-16 2019, VDE 0126-1-1/A1 VFR 2019, UTE C15-712-1:2013, DEWA, UNE 206007- 1/RD 1699, UNE 217001, P.O. 12.3, Israel certificate, and G99.
Technical specifications:
| Circuit Diagram | Power Efficiency Curve |
 |
 |
| Input (DC) |
SG50CX PREMIUM |
| Maximum input voltage per panel |
1.100 V |
| Minimum input voltage per panel / Startup voltage |
200 V / 250 V |
| Rated operating voltage |
585 V |
| MPP voltage range |
200 – 1.000 V |
| MPP voltage range for rated power |
550 – 850 V |
| Number of independent MPP inputs |
5 |
| Maximum number of panel strings per MPPT |
2 |
| Maximum input current per panel |
5 * 26 A |
| Maximum DC short-circuit current |
5 * 40 A |
| Output (AC) |
|
| AC output power |
55 kVA at 40℃, 400 Vac / 50 kVA @ 45℃, 400 Vac 55 kVA at 45℃, 415 Vac / 50 kVA at 50℃, 415 Vac |
| 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 |
| THD |
< 3 % (at rated power) |
| DC current injection |
< 0.5 % In |
| Power factor at rated power / Power factor adjustment |
> 0.99 / 0.8 leading phase – 0.8 lagging phase |
| Number of input phases / Number of connected 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 panel string current |
Yes |
| Reactive power generation at night | Yes |
| PID recovery function |
Yes |
| Arc Fault Circuit Interrupter (AFCI) | Yes |
| Overvoltage protection |
DC Class I + 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 (night) | ≤ 2 W |
| Operating temperature range | -30 to 60°C (> 45°C derating) |
| Allowable relative humidity range (non-condensing) | 0 – 100 % |
| Cooling method | Intelligent air cooling |
| Maximum operating altitude | 4,000 m (> 3,000 m derating) |
| Display | LED, Bluetooth+APP |
| Communication | RS485 / Optional: Wi-Fi, Ethernet |
| DC connection type | MC4 (Multi-Contact 4) (Max. 6 mm²) |
| AC connection type | OT or DT connection heads (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 50549-1/2, AS/NZS 4777.2:2015, CEI 0-21 2019,CEI0-16 2019, VDE 0126-1-1/A1 VFR 2019, UTE C15-712-1:2013, DEWA, UNE 206007-1/RD 1699, UNE 217001, Israel certificate, G99 |
| Grid Support | Supports reactive power generation at night, maintains grid connection during voltage sags and swells, power and reactive power control, power ramp rate control. |
| Supplier and Warranty Provider in Vietnam | XBSolar – Sungrow Service Center |
