Huawei SUN2000-40KTL-M3 Inverter, 40kW on-grid three-phase

The inverter converts the energy from the panels into three-phase alternating current, the form used by the motors, compressors and installations of an industrial building. It is the largest model in this enclosure family, so it delivers maximum power without taking up more wall space than the smaller variants. The eight separate string inputs and the automatic diagnostics reduce the time wasted identifying a group of panels that has stopped producing.

With 40,000 W active power and 44,000 VA apparent power, it is sized for industrial halls, farms and small photovoltaic parks. The 4 MPPT trackers allow the panels to be mounted at different orientations and slopes without the groups influencing each other. Maximum efficiency is 98.7% and the weighted European efficiency 98.4% — conversion losses below 2% in real operation, indicatively. The unit measures 640 x 530 x 270 mm and weighs 43 kg, the same dimensions as the 30 and 36 kW models, has IP66 protection and a working range between -25 and +60 degrees C, so it can be mounted directly on the facade or on the hall structure.

Rated output current 57.8 A, maximum 63.8 A at 400 Vac; output voltage 230 / 400 / 480 Vac, 3W/N+PE, 50/60 Hz. DC: 1,100 V maximum voltage, 4 MPPT / 8 string inputs, 27 A per MPPT (20 A per input), MPPT range 200-1,000 V, start-up voltage 200 V. Transformerless construction, intelligent air cooling, integrated AFCI, PID recovery, type II surge arresters on DC and AC, insulation resistance detection and intelligent I-V curve diagnosis. RS485 and MBUS communication, WLAN/Ethernet or 4G via Smart Dongle, FusionSolar integration; grid connection in accordance with EN 50549-1 and C10/11.

Who it suits

Suitable for production halls, farms and industrial self-consumption projects that reach approximately 40 kW on a single inverter, with limited wall mounting space.

Terms explained

• Power density: How much power the unit delivers relative to its size and weight; here 40 kW in the same enclosure as the 30 kW variant.
• Start-up voltage: The minimum voltage coming from the panels at which the inverter wakes up and starts producing, early in the morning.
• Insulation resistance: An automatic measurement that checks whether somewhere in the installation the current is leaking to earth, a sign of a damaged cable.

Technical specifications

Recommended applications

• PV plants on industrial roofs
• Small and medium power photovoltaic parks
• Production halls and farms
• Industrial self-consumption with grid feed-in

Warranty

Standard manufacturer warranty 5 years, with the possibility of extension

Technical details

Specifications confirmed from the manufacturer's datasheet

Huawei SUN2000-40KTL-M3 is a three-phase on-grid string inverter of 40 kW from the M3 family, the most powerful model in this enclosure range. The rated active power is 40,000 W and the maximum apparent power 44,000 VA. The rated output current is 57.8 A and the maximum 63.8 A at 400 Vac; the output voltage is 230 Vac / 400 Vac / 480 Vac, 3W/N+PE, at 50/60 Hz.

The DC input supports up to 1,100 V and features 4 MPPT trackers with 8 string inputs, with 27 A maximum current per MPPT (20 A per input), MPPT operating range 200-1,000 V and start-up voltage 200 V. Maximum efficiency is 98.7% and the weighted European efficiency 98.4%. Individual monitoring of the 8 strings allows faults to be detected quickly.

Transformerless construction, IP66 enclosure with intelligent air cooling, dimensions 640 x 530 x 270 mm and 43 kg, operation between -25 and +60 C. It includes integrated AFCI, PID recovery, type II surge arresters on DC and AC, insulation resistance detection and intelligent I-V curve diagnosis. RS485 and MBUS communication, with WLAN/Ethernet or 4G via Smart Dongle and FusionSolar integration. Grid connection in accordance with EN 50549-1 and C10/11.