Grid-tied Inverter Sungrow 8,3kW | SG8K3-D
Officially distributed by XBSolar Corporation, this string inverter model 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). The system configuration is highly flexible, allowing for a DC/AC ratio design of up to 130%. With a range of superior features, users can experience maximum comfort with various communication and monitoring options, facilitating easy operation and maintenance through the Isolarcloud web platform or application.
- The solid aluminum alloy housing design of this inverter model, weighing only 15.5 kg, ensures ease of installation. Integrated MC4 connectors streamline the installation process, reducing labor time. 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 smart current on each string, scan, and diagnose online using the current-voltage curve (Online IV curve scan and diagnosis). Leveraging advanced system and diagnostics, it accurately identifies the location of abnormal PV conditions. Remote data upgrading is convenient for operational and maintenance tasks (O&M).
- With IP65 protection for the inverter, IP68 for the cooling fan, and corrosion protection rating C5, the Sungrow 8,3kW grid-tie inverter is well-equipped to withstand harsh environmental conditions, making it suitable for various installation scenarios, including coastal areas like Vietnam.
Grid Safety:
- Sungrow 8.3 kW grid-tie inverter integrates features such as DC reverse polarity protection, AC short-circuit protection, and ground fault protection, alongside AC surge protection at Level II. It complies with safety grid regulations and adheres to the following standards: IEC 62109-1, IEC 62109-2, IEC 62116, IEC 61727, EN 61000-6-2, EN 61000-6-3, ABNT NBR 16149, and ABNT NBR 16150.
Technical specifications:
| Circuit Diagram | Efficiency Curve |
| Model | SG8K3-D |
| Input (DC) | |
| Maximum input voltage for the PV string | 600 V |
| Minimum input voltage / Startup voltage for the PV string | 90 V / 120 V |
| Rated input voltage for the PV string | 360 V |
| MPP voltage range | 90 V – 540 V |
| MPP voltage range for rated power | 285 V – 480 V |
| Number of independent MPP input connections | 2 |
| Maximum number of PV strings per MPPT | 1 / 2 |
| Maximum input current for the PV string | 12.5 A / 25 A |
| Maximum input current for the largest input connection | 15 A |
| Maximum DC short-circuit current | 15 A / 30 A |
| Output (AC) | |
| AC output power | 8300 VA |
| Maximum AC output current | 36.1 A |
| Rated AC voltage | 220 Vac / 240 Vac |
| AC voltage range | 176 Vac – 276 Vac (this may vary according to grid standards.) |
| Grid frequency rating | 50 Hz / 60 Hz |
| Grid frequency range | 45 Hz – 55 Hz /55 Hz – 65 Hz |
| Total Harmonic Distortion (THD) | < 3 % (of rated voltage) |
| DC current injection | < 0.5 % (of rated current) |
| Power factor | > 0.99 / 0.8 leading – 0.8 lagging |
| Number of input phases / Number of connected phases | 1/1 |
| Efficiency | |
| Maximum efficiency / European standard efficiency | 98.5 % / 98.0 % |
| Protection | |
| Reverse polarity DC connection protection | Yes |
| AC short circuit protection | Yes |
| AC overcurrent protection | Yes |
| Grid monitoring | Yes |
| PV string current monitoring | Yes |
| DC switch | Yes |
| Overvoltage protection | DC Class II / AC Class II |
| General information | |
| Dimensions (W*H*D) | 360*390*148 mm |
| Weight | 15.5 kg |
| Isolation method | Transformerless |
| Protection level | IP65 |
| Night mode power consumption | < 1 W |
| Operating temperature range | -25oC to 60oC (>45oC derating) |
| Permissible relative humidity range (non-condensing) | 0 – 100% |
| Cooling method | Natural cooling |
| Maximum operating altitude | 4000 m (> 2000 m derating) |
| Display / Communication | LCD / Wi-fi |
| DC connection type | MC4 (Max. 6 mm2) |
| AC connection type | Plug and Play connector (Max. 6mm2) |
| Certifications | IEC62109-1, IEC62109-2, IEC62116, IEC61727, EN 61000-6-2, EN 61 000-6-3, ABNT NBR 16149, ABNT NBR 16150 |
| Supplier and warranty provider in Vietnam | XBSolar – Sungrow Service Center |
