Optimal BOS, Higher Yields, Smart O&M, Safe and Reliable, Grid Friendly
Next-Generation Utility-Scale Power for Large PV Plants
The HUAWEI SUN2000-506KTL-H1 Smart String Inverter is engineered for utility-scale solar power plants, delivering up to 506 kVA of output with industry-leading efficiency of ≥99%. Built around six independent MPP trackers and an advanced hybrid cooling system, it converts solar energy into grid-ready power while supporting the latest grid-forming features for stable, reliable operation, even in the most demanding environments.
Key Features
Unmatched Efficiency
- Max Efficiency of 99.1% and European Efficiency of 98.8% for superior energy conversion across the full load range.
- 6 Independent MPP Trackers with up to 6 PV inputs per MPPT (36 strings total) for maximum design flexibility and optimal yield, even with mismatched or partially shaded arrays.
- Wide MPPT Operating Voltage Range of 500 V to 1500 V to accommodate diverse plant layouts and module technologies.
- Max DC Input Voltage of 1500 V unlocks longer strings, lower BOS costs, and improved system economics.
Advanced Design and Performance
Hybrid Cooling and Reliable Thermal Management
- Hybrid Cooling System combining natural convection and forced air for higher power density and stable performance in harsh climates.
- Self-Cleaning Fan (SSCF) with anti-icing function ensures uninterrupted operation in dusty, humid, or cold environments while reducing maintenance.
- Operating temperature range: –25 °C to +60 °C, with full power output up to 4,000 m altitude.
Comprehensive Safety and Protection
- String-Level Disconnection (SSLD) and Smart Connector-Level Detection (SCLD) for fast isolation of DC-side faults.
- Type II Surge Protection on both AC and DC sides protects the inverter from lightning and grid transients.
- DC reverse polarity protection, PV string fault detection, AC overcurrent protection, insulation resistance monitoring, and residual current detection for end-to-end electrical safety.
- IP66 enclosure and C5-Medium anti-corrosion rating make it ideal for coastal, desert, and industrial environments.
Smart Monitoring and Easy Control
- RS485 and MBUS Communication: Easily integrate the inverter with Huawei FusionSolar Smart PV Management System for real-time monitoring and control.
- Smart IV Curve Diagnosis: Provides string-level monitoring for precise fault detection and rapid troubleshooting.
- FusionSolar App: Simplify setup and management via the FusionSolar app, offering remote monitoring and configuration.
Smart Monitoring and Easy Control
- MBUS Power Line Communication transmits data over the AC power cable, removing the need for additional communication wiring and simplifying plant cabling.
- Smart I-V Curve Diagnosis enables string-level fault detection and proactive maintenance for lower O&M costs.
- LED Status Indicators for fast on-site diagnostics, with full remote monitoring and management via the Huawei SmartLogger5000A and FusionSolar management system.
- Three-Level Fault Recording (plant-level, array-level, and inverter-level) for in-depth analysis of grid events in standard COMTRADE 2013 format.
Grid-Forming Ready for the Modern Power Grid
The SUN2000-506KTL-H1/H3 supports Grid-Forming (GFM) operation, acting as a virtual synchronous generator (VSG) to enhance grid stability during frequency and voltage fluctuations.
- PV Black Start capability provides commissioning power without an external grid or genset.
- Primary frequency regulation, primary voltage regulation, and inertia response improve grid resilience in renewable-rich networks.
- Power Oscillation Damping (POD) suppresses low-frequency oscillations from 0.1 Hz to 5 Hz.
- Auto-Start with Reactive Power at Night for continuous reactive power support and automatic recovery after grid disturbances (SUN2000-506KTL-H1 with soft-start board).
Power your utility-scale solar projects with the high-efficiency, grid-forming-ready HUAWEI SUN2000-506KTL-H1 Smart String Inverter — built for the next generation of large PV plants.