Growatt Solar Inverter Datasheet — MAX-333K-X
Growatt — the world's #1 residential solar inverter brand by Wood Mackenzie. The MAX 333K-X is a utility-scale three-phase string inverter. Designed for large rooftops, ground-mount solar farms, and IPP projects in KSA, Egypt, Jordan, and Morocco.
SKU: MAX-333K-X | Last Updated: 2026-07-23
⚡Electrical Specifications
| Max. recommended PV power (for module STC) | 499500W |
| Max. DC voltage | 1500V |
| Start voltage | 500V |
| Nominal voltage | 1080V |
| MPP voltage range | 500V-1500V |
| Max. input current per MPPT tracker | 80A |
| Max. short-circuit current per MPPT tracker | 100A |
| No. of MPPT trackers | 6 |
| No. of PV strings per MPPT tracker | 5 |
| AC nominal power | 333000W |
| Max. AC apparent power | 366300VA@25°C 333000VA@45°C 295000VA@50°C |
| Nominal AC voltage | 800V |
| AC output range | 640-920V AC |
| AC grid frequency (range) | 50/60 Hz (45-55 Hz / 55-65 Hz) |
| Nominal output current | 240.3A |
| Adjustable power factor | 0.8 leading - 0.8 lagging |
| THDi | <3% |
| AC grid connection type | 3W+PE |
| Max efficiency | 99.03% |
| European efficiency | 98.53% |
| MPPT efficiency | 99.90% |
| DC reverse polarity protection | Yes |
| DC Switch | Yes |
| AC/DC surge protection | Type I / Type II |
| Insulation resistance monitoring | Yes |
| RCD detection | Yes |
| Output short circuit protection | Yes |
| String fault monitoring | Yes |
| Anti-PID function | Optional |
| Display | LED/WIFI+APP |
| Interfaces | USB/RS485/GPRS/4G/PLC/WIFI |
🔧Mechanical Specifications
| Dimensions (W / H / D) | 1145/790/371mm |
| Weight | 139kg |
| Operating temperature range | -30°C to +60°C |
| Altitude | 5000m (Derating @ 4000 m) |
| Relative humidity | 0-100% |
| Nighttime power consumption | <1W |
| Topology | Transformerless |
| Cooling | Smart air cooling |
| Protection degree | IP66 |
📏Dimensions
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