Solax Solar Inverter GRAND 300000W X3-GRD-300K-HV Three-phase High Voltage
Modelo: X3-GRD-300K-HV- Sku: SOLXINV053
- Vendor: Solax
Specifications
Product Description
The Solax GRAND 300000W X3-GRD-300K-HV Three-phase High Voltage Solar Inverter is a next-generation string inverter for large commercial and industrial installations. Designed to operate on 800 V grids and PV systems up to 1500 Vdc, it offers a unique combination of 99.03% efficiency, 6 MPPT with 5 strings each, and IP66 enclosure. Its optimized electronics, intelligent cooling, and advanced O&M functions (I-V curve scanning, string-level reading, remote diagnostics) reduce LCOE and maximize availability.
Main Features
- 6 MPPT with 5 strings per MPPT (30 inputs) for extremely flexible field design.
- MPPT range 500–1500 Vdc; start voltage 550 V; maximum PV voltage 1500 V.
- Current per MPPT: 75 A (max. Isc 115 A) optimized for high-current modules.
- Three-phase output at 800 V AC; apparent power 300 kVA; THDi <3% and adjustable PF (0.8 inductive to 0.8 capacitive).
- Max. efficiency 99.03% and European 98.80%; transformerless topology.
- IP66 protection, Type II SPD on DC/AC (Type I+II option), optional AFCI, and external Anti-PID.
Advantages or Benefits
- Higher annual production thanks to its very high efficiency and 6 MPPT with 30 total strings.
- Ready for high-current TOPCon/HJT modules (75 A per tracker) without limiting power.
- Agile O&M: I-V scanning, AC terminal temperature, and advanced monitoring to detect soiling, PID, or faults early.
- Industrial integration: Modbus RTU/TCP, SunSpec, and 2030.5 communications; PLC option; reactive power control even at night (SVG).
- Superior availability with intelligent cooling and thermal design for demanding climates.
Purpose or Applications
Ideal for large-scale solar plants, logistics rooftops, ground-mounted parks, and industrial self-consumption with 800 V grid connection. Perfect for projects requiring string-level control, strict grid code compliance, and OPEX reduction.
Technical Specifications
| AC apparent power | 300 kVA |
| AC voltage / connection | 3/PE, 800 V; 50/60 Hz (±5 Hz) |
| Max. continuous AC current | 216.6 A |
| MPPT / Strings | 6 MPPT / 5 per MPPT (30 total) |
| MPPT range | 500–1500 Vdc (start 550 V; max. Vdc 1500 V) |
| Current per MPPT | 75 A (max. Isc 115 A) |
| Efficiency | 99.03% max.; 98.80% EU |
| Protections | IP66; Type II SPD DC/AC (Type I+II opt.); optional AFCI; anti-islanding; RCMU; external Anti-PID |
| Grid functions | SVG/reactive compensation 24 h; power control; controlled DC injection |
| Communications | Modbus RTU/TCP, SunSpec, IEEE 2030.5; optional WiFi/LAN/4G/PLC |
| Dimensions / Weight | 1225×825.5×369.1 mm / 130 kg |
| Environment | −30 to 60 °C (derating >40–45 °C); altitude ≤5000 m (derating >4000 m); 0–100% RH |
| Topology | Transformerless |
| Certifications | EN50549, VDE-AR-N-4110/4105, IEC 62116/61727, G99, CEI 0-16/0-21, RD1699, NRS097, etc. |
Compatibilities
Compatible with meter/CT for export control, Solax Cloud platform, and optional communication modules (WiFi, LAN, 4G, or PLC). Integrable into SCADA via Modbus or SunSpec.
The Solax GRAND X3-GRD-300K-HV is a professional solution to maximize energy, safety, and control in large-scale PV plants.
Descargar ficha técnica
View full details
Have a question?
Solax Solar Inverter GRAND 300000W X3-GRD-300K-HV Three-phase High Voltage
