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Solax Solar Inverter GRAND 350000W X3-GRD-350K-HV Three-phase High Voltage

Modelo: X3-GRD-350K-HV

Sku: SOLXINV056
Vendor: Solax

€11.070,02 EUR

€9.409,52 EUR

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Solax GRAND 350000W X3-GRD-350K-HV Three-Phase High Voltage Solar Inverter with 6 MPPT (75 A) and IP66. 30 strings, 1500 Vdc, 800 V output, 99.03% efficiency, I-V diagnosis and 24 h SVG. Designed for mega solar plants.

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Specifications

Product Description

The Solax GRAND 350000W X3-GRD-350K-HV Three-phase High Voltage Solar Inverter is the top-of-the-range model in the GRAND series for 800 V grid connection. Designed for PV fields at 1,500 Vdc, it integrates 6 MPPT with 5 strings each (30 in total), allowing for high-density designs with high-current modules. Its maximum efficiency of 99.03%, intelligent cooling, and advanced diagnostic electronics (I-V curve, string-level reading, thermal alarms) reduce OPEX and increase availability in utility-scale projects.

Main Features

6 MPPT with 5 strings per MPPT (30 inputs) and string-level measurement for precise O&M.
MPPT range 500–1500 Vdc; startup 550 V; max. PV voltage 1500 V (HV systems).
Current per MPPT 75 A (max. Isc 115 A), suitable for high-current TOPCon/HJT.
Output 800 V AC; apparent power 350 kVA; THDi <3% and adjustable PF 0.8 capacitive…0.8 inductive.
Efficiency 99.03% max. (98.80% EU) and transformerless topology.
IP66 protection, SPD Type II DC/AC (Type I+II option), optional AFCI and external Anti-PID.

Advantages or Benefits

Maximum production per block with 350 kVA and 30 strings managed by 6 MPPT.
Robust operation in demanding environments thanks to IP66 and thermal management with intelligent fans.
Advanced grid control: SVG/reactive compensation 24 h, power control, and compliance with international codes.
Efficient O&M with I-V scanning, string-level reading, and remote updates that shorten intervention times.
Open integration into SCADA via Modbus RTU/TCP, SunSpec, or IEEE 2030.5; PLC option.

Purpose or Applications

Aimed at large-scale ground-mounted photovoltaic plants, large industrial rooftops, and C&I projects where 350 kW per block, 800 V output, and detailed string monitoring are required to ensure performance and grid compliance.

Technical Specifications

AC apparent power	350 kVA
AC voltage / connection	3/PE, 800 V; 50/60 Hz
Max. continuous AC current	≈252.5 A
MPPT / Strings	6 MPPT / 30 strings (5 per MPPT)
MPPT range	500–1500 Vdc (startup 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, programmable PF
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 zero export, Solax Cloud and optional communication modules (WiFi, LAN, 4G or PLC). Direct integration into SCADA via Modbus or SunSpec.

The Solax GRAND X3-GRD-350K-HV offers the highest power in the range with 99.03% efficiency, IP66 safety, and intelligent O&M for utility-scale projects.