Grid-tied Inverter Sungrow 20 kW | SG20RT
Officially distributed by XBSolar Corporation, the String Inverter line features 2 independent MPPTs with a maximum efficiency of up to 98.5%, compatible with various types of solar panels (mono, poly, bifacial, and thin-film technologies). With a range of outstanding features, users can experience seamless operations and maintenance through the Isolarcloud platform or web-based options.
- The solid aluminum alloy casing design with a lightweight of only 21 kg facilitates easy installation. Integrated MC4 connectors reduce installation time and labor. All Sungrow solar inverters are designed with separate boards for easy replacement and maintenance over time.
- The integrated software allows users to monitor intelligent current across each string, scan and diagnose online through the IV curve and voltage curve. Based on advanced system and diagnosis, it accurately locates abnormal PV positions. Remote data upgrading facilitates convenient operation and maintenance (O&M).
- The integrated Recovery PID function addresses the effects of Potential-Induced Degradation (PID) on the system. PID is a complex process with multiple influencing factors. It leads to a decline in performance not only of individual PV panels but also of entire strings containing affected panels. The system’s power output can decrease by up to 90% over time due to PID. The Recovery PID feature is designed to rectify degraded PV panels, potentially increasing system productivity by up to 10%.
- With IP65 protection for the inverter, IP68 for the cooling fan, and corrosion resistance rated at C5, Sungrow 20kW grid-tied inverter is highly resilient to harsh environments, making it suitable for various installation scenarios, including coastal areas in Vietnam.
- The integrated Arc Fault Circuit Interrupter (AFCI) function is capable of more accurately detecting arc faults and eliminating errors more quickly, ensuring safety for your solar power system.
Grid safety:
Sungrow 20kW grid-tied inverter integrates protective features such as reverse polarity protection for DC, AC short circuit protection, and ground fault protection, along with surge protection rated at level II for both DC and AC. It complies with safety grid standards and fully adheres to EN 61000-6-1/-3, IEC62109-2, IEC 61727, IEC 62116, AS/NZS 4777.2:2015, VDE-AR-N-4105, DIN VDE0126-1-1, CEI 0-21, EN50549-1.
Specifications:
| Circuit Diagram | Power Efficiency Curve |
 |
 |
| Model | SG20RT |
| Input (DC) |
|
| Maximum PV input power (recommended) | 30 kW |
| Maximum PV input voltage |
1.100 V |
| Minimum PV input voltage / Startup voltage |
180 V |
| Rated PV input voltage |
600 V |
| MPPT voltage range |
160 V – 1.000 V |
| Number of independent MPPT inputs |
2 |
| Maximum number of PV strings per MPPT |
2 / 2 |
| Maximum DC input current |
50 A (25 A / 25 A) |
| Maximum DC short circuit current |
64 A (32 A / 32 A) |
| Output (AC) |
|
| Rated AC power (@230V, 50 Hz) | 20 kW |
| Maximum AC output power |
22 kVA |
| Maximum AC output current |
31,9 A |
| Rated AC voltage |
3 / N / PE, 220 / 380 V 3 / N / PE, 230 / 400 V 3 / N / PE, 240 / 415 V |
| AC voltage range |
180 V – 276 V |
| Grid frequency rating / Frequency range |
50 Hz / 45 – 55 Hz, 60 Hz / 55 – 65 Hz |
| Total harmonic distortion (THD) |
< 3 % (at rated power) |
| Power factor at rated power / Power factor adjustment |
> 0,99 / 0,8 leading phase – 0,8 lagging phase |
| Number of input phases / Number of output phases |
3 / 3 |
| Efficiency |
|
| Maximum efficiency / European standard efficiency |
98,5% / 98,1% |
| Protection features | |
| Grid monitoring | Yes |
| Reverse polarity DC connection protection |
Yes |
| AC short-circuit protection |
Yes |
| Ground fault protection |
Yes |
| DC switch / AC switch |
Yes/ Yes |
| Arc Fault Circuit Interrupter (AFCI) |
Yes |
| PID recovery function |
Yes |
| Overvoltage protection |
DC Class II / AC Class II |
| General information | |
| Dimensions (Width * Height * Depth) | 370 * 480 * 195 mm |
| Mounting method | Wall mounting brackets |
| Weight | 21 kg |
| Isolation method | Transformerless |
| Protection level | IP65 |
| Operating temperature range | -25℃ to 60℃ |
| Allowed relative humidity range (non-condensing) | 0 – 100 % |
| Cooling method | Intelligent air cooling |
| Maximum operating altitude | 4.000 m (> 2.000 m reduces power) |
| Normal noise | 45dB(A) |
| Display | LED |
| Communication | WLAN, Ethernet, RS485, DI, DO |
| DC connection type | MC4 |
| AC connection type | Plug and play |
| Certifications | EN 61000-6-1/-3, IEC62109-2, IEC 61727, IEC 62116, AS/NZS 4777.2:2015, VDE-AR-N-4105, DIN VDE0126-1-1, CEI 0-21, EN50549-1 |
| Supplier and warranty provider in Vietnam | XBSolar – Sungrow Service Center |
