Sungrow SG33CX Three-Phase Solar Inverter | 33 kW
Modelo: SG33CX- Sku: SUNGINV022
- Vendor: Sungrow
Specifications
Product Description
The Sungrow SG33CX Three-Phase Solar Inverter | 33 kW is a multi-MPPT string inverter of 1000 Vdc designed to maximize production in commercial and SME three-phase self-consumption. With 3 independent MPPTs, high-efficiency electronics, and intelligent O&M functions such as Smart IV Curve diagnosis, it ensures stable performance, versatile installation, and professional monitoring via iSolarCloud. It includes IP66 protection with C5 corrosion class, AFCI, type II SPD, and PID recovery function to safeguard the investment throughout the system’s lifetime.
Main Features
- Nominal AC power of 33 kW with a wide thermal margin to operate in demanding environments.
- 3 independent MPPTs (2 strings per MPPT) that optimize rooftops with multiple orientations.
- Maximum efficiency of 98.6% (European 98.3%) and very low internal losses.
- Comprehensive safety: AFCI, Type II SPD on DC/AC, PID Recovery, anti-islanding, and grid monitoring.
- Intelligent O&M: Smart IV Curve, “touch-free” commissioning, and remote firmware update (OTA).
- Professional connectivity: RS485 and WLAN/Ethernet options; app and iSolarCloud platform.
Advantages or Benefits
- More annual kWh with 3 MPPTs that reduce losses due to mismatches and partial shading.
- High availability and lower risk thanks to AFCI and SPD II, as well as proactive diagnostics.
- Agile installation: AC terminals for Al/Cu, 2-in-1 DC input, and fuse-free design with string monitoring.
- Reduced O&M costs due to 24/7 monitoring, intelligent alarms, and OTA updates.
- Outdoor robustness: IP66 and C5, designed for industrial environments and coastal areas.
Purpose or Applications
Ideal for three-phase self-consumption in warehouses, commercial buildings, agricultural operations, solar car parks, or SMEs with high daytime demand (air conditioning, cold rooms, light machinery, EV chargers). Its multi-MPPT architecture adapts to rooftops with multiple slopes or different inclinations.
Technical Specifications
| Nominal AC power | 33 kW |
| Max PV voltage | 1100 Vdc |
| Minimum / start voltage | 200 V / 250 V |
| Nominal PV voltage | 585 V |
| MPPT range | 200–1000 V |
| No. of MPPT / strings | 3 MPPT / 2 per MPPT (6 in total) |
| Max input current | 3 × 26 A |
| Max admissible Isc | 3 × 40 A |
| Max AC current | 55.2 A |
| Max / European efficiency | 98.6% / 98.3% |
| AC connection | 3/N/PE, 230/400 V (312–528 V), 50/60 Hz |
| PF / THD | >0.99 (0.8 cap–0.8 ind) / <3% |
| Protections | AFCI, anti-islanding, earth leakage, SPD II DC/AC (DC I+II optional), PID recovery |
| Degree and corrosion | IP66 / C5 |
| Cooling / Noise | Intelligent forced / — |
| Night consumption | ≤ 2 W |
| Altitude / Humidity | Up to 4000 m (derating >3000 m) / 0–100% |
| Dimensions / Weight | 702 × 595 × 310 mm / 50 kg |
| Communications | RS485; optional WLAN/Ethernet; app and iSolarCloud |
| Connections | DC MC4 (max. 6 mm²); AC OT/DT (max. 70 mm²) |
| Topology | Transformerless |
Compatibilities
Compatible with monofacial and bifacial modules of 1000 Vdc, iSolarCloud platform, and Sungrow logger (EyeM4). For export control and net metering, integrate Sungrow smart meter. If the system could exceed 1000 Vdc, use MC4-Evo2 connectors instead of standard MC4.
The Sungrow SG33CX Three-Phase Solar Inverter | 33 kW offers an outstanding combination of efficiency, safety, and intelligent O&M for professional three-phase projects seeking reliability and maximum performance.
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Sungrow SG33CX Three-Phase Solar Inverter | 33 kW
