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The Huawei SUN2000-20KTL-M5 is a high-efficiency, next-generation three-phase grid-connected inverter from the M5 series, designed for commercial rooftop and ground-mounted solar power plants. The device has a rated power of 20 kW and combines intelligent control, active safety, and flexible communication. This solution is designed for stable operation under variable generation conditions and complex string architectures, ensuring maximum productivity and minimal energy losses.
With a maximum efficiency of 98.4% and a European weighted efficiency of 98.1%, the inverter delivers high energy yield even under partial loads. Its two independent MPPT trackers (each with two inputs) allow for optimal operation with strings oriented in different directions. The AI-based arc fault circuit interrupter (AFCI) system, built-in residual current monitoring, and IP66 protection rating ensure safe and long-lasting operation even in harsh climatic conditions.
Key Benefits
- High Efficiency: 98.4% efficiency and a European weighted average of 98.1% ensure minimal energy loss and a quick return on investment.
- Up to 30% more energy: thanks to compatibility with Huawei optimizers (450W-P, 600W-P, 1100W-P, 1300W-P), per-cell monitoring and shading compensation are provided.
- AI-powered safety: intelligent arc fault detection (AFCI), Type II DC/AC protection, residual current monitoring, and anti-islanding mode.
- Flexible communications: standard RS485 plus optional Smart Dongle modules for WLAN, Ethernet, or 4G.
- Two MPPT and four DC inputs: each tracker supports currents up to 30 A, allowing for the connection of high-current panels of the latest generations.
- Reliability and durability: aluminum housing with IP66 protection rating and fanless “smart” air cooling.
- Grid compatibility: support for cos φ = 0.8 (leading/lagging), THD ≤ 3% and certification to international standards (EN50549, G99, CEI 0-21, VDE-AR-N-4105).
Technical specifications
- Connection type: three-phase network (3W + N + PE).
- Rated power: 20,000 W.
- Maximum total power: 22,000 VA.
- Rated voltage: 220/380 V – 230/400 V – 239.6/415 V.
- Rated frequency: 50/60 Hz.
- Maximum output current: 33.6 A (380 V) / 31.9 A (400 V) / 30.8 A (415 V).
- Maximum efficiency: 98.4% / European efficiency: 98.1%.
- Recommended PV power: 30,000 Wp.
- Maximum input voltage: 1,100 V / rated: 600 V.
- MPPT range: 200–1,000 V; full range 480–800 V.
- Current per MPPT: 30 A (two strings) / 20 A (one string).
- Maximum short-circuit current: 40 A.
- Number of MPPT: 2 / DC inputs: 4.
- Protection functions: AFCI, SPD DC Type II, SPD AC Class II, anti-islanding mode, string fault detection, residual current monitoring.
- Cooling: intelligent air cooling.
- Communications: RS485, WLAN/Ethernet (optional via Smart Dongle), 4G/3G/2G.
- Indicators: LED indicators + FusionSolar app.
- Operating temperature: –25 ... +60 °C; humidity: 0–100% RH.
- Operating altitude: up to 4000 m (derating above 2000 m).
- Dimensions: 546 × 460 × 228 mm; weight: 21 kg.
- Protection rating: IP66.
- Compatible inverters: SUN2000-450W-P, 450W-P2, 600W-P, 1100W-P, 1300W-P.
Design and operational features
- High power and efficiency: 20 kW of output power and high power density ensure an optimal balance between size and performance.
- AI arc fault protection: automatic detection and localization of arc faults minimizes fire risks.
- Compact and lightweight: weighing just 21 kg, the device can be easily installed by a single person.
- Full IP66 sealing: protection against dust, moisture, and corrosion for outdoor installation.
- PID Recovery support: built-in function to restore the efficiency of modules affected by the PID effect (for P-type modules).
- Easy setup and monitoring: Integrated WLAN and the FusionSolar app allow for commissioning in just a few clicks.
Applications
Commercial and industrial solar power plants: the ideal solution for high-power-load facilities requiring stable generation and minimal losses.
Energy service projects (ESCO): the inverter integrates easily into monitoring and reporting systems and supports remote management and SLA control.
Modernization of existing stations: increases the productivity of older arrays and reduces energy losses due to shading.
Roof systems and complex architectures: two MPPT channels allow for the efficient division of strings into different orientations or roof segments.
The company “Total Energo” provides a full cycle of Huawei inverter implementation: design, supply, installation, configuration, and service. We help you choose the optimal configuration for any facility and provide warranty and post-warranty service.