Description

Product Description

The Huawei SUN2000-20KTL-M5 string inverter is engineered to deliver efficient solar energy conversion, reliability, and smart energy management for medium and large PV systems. With dual MPPT (Maximum Power Point Tracking) channels and four string inputs, it maximises energy harvest from varied module orientations and array configurations. The inverter achieves high conversion efficiency (up to about 98.4 percent) with European efficiency around 98.1 percent, helping improve daily energy yield. Comprehensive built-in protection functions — including AI-supported arc fault detection (AFCI), anti-islanding protection, AC and DC surge protection, reverse-polarity protection, and residual current monitoring — enhance system safety and longevity. Robust IP66 design with smart air cooling ensures reliable operation in harsh outdoor environments while optional communication modules (Wi-Fi, Ethernet, 4G) allow remote diagnostics and performance tracking through Huawei’s FusionSolar monitoring platform.

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Technical Specifications (Bullet Form)

General

• Model: SUN2000-20KTL-M5 three-phase grid-tied string inverter.

• Rated AC output power: 20 000 W (20 kW).

• Maximum apparent AC power: 22 000 VA.

• Nominal AC voltage (3W/N+PE): 220/380 V, 230/400 V, 239.6/415 V.

• Operating frequency: 50 Hz / 60 Hz.

• Protection class: IP66 (dust and water resistant).

• Cooling: Smart Air Cooling.

• Dimensions: 546 × 460 × 228 mm.

• Weight: ~21 kg.

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

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

DC (PV) Input

• Maximum DC input power: 30 000 Wp recommended.

• Maximum DC input voltage: 1 100 V.

• MPPT operating voltage range: 200 – 1000 V.

• Full-load MPPT range: ~480 – 800 V.

• Start-up (minimum) voltage: 200 V.

• Rated DC voltage: 600 V.

• Independent MPPT trackers: 2.

• Maximum DC inputs: 4.

• Max. input current per MPPT: 30 A (two string) / 20 A (single string).

• Max. short-circuit current per MPPT: 40 A.

Efficiency

• Maximum conversion efficiency: 98.4 %.

• European weighted efficiency: ~98.1 %.

• Total harmonic distortion (THD): ≤ 3 %.

AC Output

• Maximum output current: up to ~33.6 A @ 380 V / 31.9 A @ 400 V / 30.8 A @ 415 V.

• Adjustable power factor range: 0.8 leading to 0.8 lagging.

Safety & Protection

• AI-assisted arc fault protection (AFCI).

• Anti-islanding protection.

• DC reverse-polarity protection.

• AC and DC surge protection (Type II / Class II).

• Residual current monitoring unit (RCMU) and insulation detection.

• PV string fault monitoring.

Communication & Monitoring

• Standard communication via RS485.

• Optional communication via WLAN/Ethernet and 4G smart dongles.

• Remote monitoring through Huawei FusionSolar platform.