Description

Product Description

The Huawei SUN2000-40KTL-M3 string inverter is engineered to maximise solar energy harvest and deliver reliable, long-term performance in commercial and industrial settings. It features up to 98.7% maximum conversion efficiency and four independent MPPT channels, enabling optimal power extraction from multiple PV string configurations. Built-in protection features such as integrated arc fault circuit interruption (AFCI), anti-islanding protection, surge protection, and PID recovery help protect both the inverter and PV array system. The inverter supports smart monitoring via Huawei’s FusionSolar platform, providing real-time system performance, remote diagnostics, and fault alerts to improve uptime and ease of maintenance. Its transformerless design with natural convection cooling and IP66 weather resistance allows it to operate reliably in harsh outdoor environments.

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Technical Specifications (Bullet Form)

General

• Model: SUN2000-40KTL-M3

• Inverter type: Three-phase grid-tied string inverter

• Rated AC active power: 40 000 W

• Maximum AC apparent power: 44 000 VA

• Protection rating: IP66 (dust and water resistant)

• Cooling method: Natural convection (fanless)

• Operating temperature range: -25 °C to +60 °C

• Maximum operating altitude: up to 4 000 m (derating above 2 000 m)

• Nighttime power consumption: ≤ 5.5 W

Efficiency

• Maximum conversion efficiency: 98.7 %

• European efficiency: 98.4 %

DC (PV) Input

• Maximum DC input voltage: 1 100 V

• Rated DC voltage: 600 V

• MPPT operating voltage range: 200 V – 1 000 V

• Minimum start voltage: 200 V

• Number of MPPT trackers: 4

• Maximum current per MPPT: 26 A

• Maximum short-circuit current per MPPT: 40 A

• Number of DC inputs: 8

AC Output

• Nominal AC voltage configurations: e.g., 230 V/400 V/480 V depending on region

• Rated grid frequency: 50 Hz / 60 Hz

• Maximum output current: 63.8 A

• Adjustable power factor range: 0.8 leading to 0.8 lagging

Communication and Monitoring

• Built-in WLAN/RS485 interfaces, optional Ethernet and 4G smart dongles

• Supported by Huawei FusionSolar platform for remote monitoring and control

Protection Features

• Integrated Arc Fault Circuit Interruption (AFCI)

• Anti-islanding protection

• DC and AC Type II surge protection

• Residual current and insulation monitoring

• PID recovery function to mitigate module degradation