Solis S6-GU3P350K06-EV-ND is a utility-class three-phase grid-tied PV inverter engineered for large-scale solar installations. Operating on a 1500V DC architecture with an 800V AC output and delivering a rated power of 350kW, this inverter delivers a cost-effective adaptive solution for modern utility-scale PV projects.

High Efficiency
The inverter achieves a maximum efficiency of 99%, with European efficiency at 98.7%, delivering minimal conversion losses and optimizing overall system yield. The unit supports a DC/AC ratio exceeding 150%, providing greater design flexibility and the ability to maximize energy harvest without upgrading the inverter. A high MPPT current of up to 80A ensures compatibility with modern high-power modules, including 182mm and 210mm bifacial series, enabling installers to leverage the latest PV technologies.

The inverter’s patented heat transfer technology delivers a continuous 5% output power increase under high-temperature conditions beyond standard performance. Even at an ambient temperature of 51°C, it maintains 86% of its rated output power, ensuring superior thermal performance and higher energy generation in demanding climates.

Robust Safety and Reliability
Designed for harsh outdoor environments, the S6-GU3P350K06-EV-ND features an IP66 protection rating for complete dust ingress protection and resistance to powerful water jets, combined with a C5-M corrosion resistance rating for operation in highly corrosive environments such as coastal areas or industrial zones.

Comprehensive safety features include:
Intelligent remote release functionality for DC switches, enabling remote shutdown for enhanced safety during maintenance or emergency situations;
AC/DC terminal temperature detection for early warning of thermal anomalies;
Intelligent string interruption and active protection mechanisms;
Integrated protection suite including anti-islanding protection (ENS), short-circuit protection, overcurrent protection, overtemperature protection, reverse polarity protection, and grid monitoring.

Smart Monitoring and Diagnostics
The inverter is equipped with advanced intelligence capabilities:
Intelligent string monitoring with I-V curve scanning and diagnostics for rapid performance assessment;
Online insulation fault detection for each MPPT, enabling swift fault identification and minimizing system downtime;
Environmental management functions, including low-temperature antifreeze, reverse dust removal, and in-cabinet dehumidification for optimal operational conditions.

Cost-Effective Design
The S6-GU3P350K06-EV-ND is engineered to reduce both capital and operational expenditures:
Fast reactive power response in 20ms—can replace the need for a separate Static Var Generator (SVG), eliminating associated hardware and installation costs;
Support for 400mm² aluminum wire connection, significantly reducing AC cable costs compared to copper alternatives;
PLC communication support, minimizing communication cable requirements and lowering construction costs.

Applications
This utility-class inverter is ideal for:
Large-scale utility PV power plants;
Commercial and industrial solar installations;
Microgrid integration;
EV charging station integrations.