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Solax Solar Inverter GRAND 333000W X3-GRD-333K-HV Three-phase High Voltage

Modelo: X3-GRD-333K-HV

Sku: SOLXINV055
Vendor: Solax

€10.887,31 EUR

€9.254,21 EUR

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Solax GRAND 333000W X3-GRD-333K-HV Three-phase High Voltage Solar Inverter with 6 MPPT (75 A) and IP66. 30 strings, 1500 Vdc, 800 V output, max. efficiency 99.03%, I-V diagnosis and nighttime SVG. Designed for large scale.

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Specifications

Product Description

The Solax GRAND 333000W X3-GRD-333K-HV Three-Phase High Voltage Solar Inverter is a very high-power string inverter designed for large-scale photovoltaic plants. It operates with PV fields up to 1,500 Vdc and connects directly to industrial 800 V AC grids, combining a maximum efficiency of 99.03% with 6 MPP trackers and a total of 30 string inputs. Its IP66 enclosure, intelligent active cooling, and advanced O&M functions (I-V scanning, string-level reading, remote configuration/update) reduce LCOE and increase system availability.

Main Features

6 MPPT with 5 strings per MPPT (30 strings) for flexible design and reduced mismatch loss.
MPPT range 500–1500 Vdc; start-up voltage 550 V; maximum Vdc 1500 V (systems at 1,500 V).
Current per MPPT 75 A (max Isc 115 A), optimized for high-current TOPCon/HJT modules.
Three-phase output 800 V; apparent power 333 kVA; THDi <3%; adjustable PF from 0.8 capacitive to 0.8 inductive.
Max efficiency 99.03%; European efficiency 98.80%; transformerless topology.
Industrial safety: IP66, SPD Type II on DC/AC (Type I+II option), optional AFCI and external anti-PID.

Advantages or Benefits

More annual energy: very high efficiency combined with 30 strings and 6 MPPT to minimize losses.
Ready for high-current modules without limiting production (75 A per tracker).
Smart O&M with I-V diagnostics and string-level reading to detect soiling, PID, or faults within minutes.
Total grid control: SVG/reactive compensation 24 h, power control, and code compliance.
Higher availability: active ventilation with thermal management for demanding climates.

Purpose or Applications

Ideal for ground-mounted solar parks, large logistics rooftops, agrivoltaics, and industrial carports requiring 333 kW blocks, string-level monitoring, and operation on 800 V grids with strict quality standards.

Technical Specifications

AC apparent power	333 kVA
AC voltage / connection	3/PE, 800 V; 50/60 Hz
Max continuous AC current	≈240 A
MPPT / Strings	6 MPPT / 30 strings (5 per MPPT)
MPPT range	500–1500 Vdc (start-up 550 V; max Vdc 1500 V)
Current per MPPT	75 A (max Isc 115 A)
Efficiency	99.03% max; 98.80% EU
Protections	IP66; SPD Type II DC/AC (Type I+II opt.); optional AFCI; anti-islanding; RCMU; external anti-PID
Grid functions	SVG 24 h, active/reactive 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)
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). Direct integration into SCADA via Modbus or SunSpec.

The Solax GRAND X3-GRD-333K-HV maximizes production and control in large-scale PV plants with the reliability of an IP66 enclosure and advanced O&M.