Huawei Inverter - 4kW - SUN2000-4KTL-M1

The Huawei SUN2000-4KTL-M1 is a three-phase solar inverter delivering 4 kW of rated AC output power, engineered for residential and small commercial PV installations. Its standout capability is the integration of AI-powered arc fault detection (AFCI), which continuously monitors the DC circuit for dangerous arcs and automatically shuts down the system in milliseconds, ensuring maximum safety for your home and family. With a maximum efficiency of 98.4% and a European efficiency of 97.5%, this transformerless inverter converts more sunlight into usable energy, reducing your electricity bills and carbon footprint.

Advantages

The SUN2000-4KTL-M1 is built for reliability and ease of use. Its natural convection cooling eliminates the need for fans, resulting in whisper-quiet operation below 29 dB and a longer lifespan with no moving parts to wear out. The integrated DC disconnector and IP65-rated enclosure allow for flexible installation both indoors and outdoors, even in dusty or wet environments. With two independent MPPTs, the inverter can handle complex roof layouts with different orientations or shading, maximizing energy harvest from every panel. The built-in WLAN interface enables seamless monitoring via the FusionSolar app, while optional Smart Dongles add Ethernet or 4G connectivity for remote management.

Suitable for

• Homeowners seeking a safe, efficient, and quiet solar inverter for rooftop PV systems.
• Small businesses aiming to reduce energy costs with a reliable three-phase solution.
• Installers looking for a compact, easy-to-commission inverter with advanced safety features.
• Systems with battery storage, as the inverter is compatible with the Huawei LUNA2000 series for future expansion.

Key specifications

• Rated AC output power: 4000 W (4 kW)
• Max DC input power: 6000 W
• Number of MPPTs: 2
• Max input voltage: 1100 V
• MPPT operating voltage range: 140 V – 980 V
• Max input current per MPPT: 12.5 A
• Max efficiency: 98.4%
• European efficiency: 97.5%
• AC grid type: Three-phase
• Rated AC voltage: 220 V / 380 V, 230 V / 400 V
• Rated AC frequency: 50 Hz / 60 Hz
• Ingress protection: IP65
• Cooling method: Natural convection
• Operating temperature range: -25°C to +60°C
• Communication interfaces: WLAN (integrated), Ethernet/4G (optional Smart Dongle)
• DC disconnector: Integrated
• Arc fault circuit interrupter (AFCI): Integrated (AI powered)
• Battery compatibility: Yes (Huawei LUNA2000 series)
• Topology: Transformerless
• Noise level: <29 dB

Recommendations

For optimal performance, pair the SUN2000-4KTL-M1 with high-efficiency PV modules and consider adding a Huawei LUNA2000 battery to store excess energy for night-time use. Ensure proper ventilation around the unit despite its natural convection cooling, and use the FusionSolar app to monitor energy production in real time. This inverter is an excellent choice for those prioritizing safety, efficiency, and future-proofing.