Three-phase hybrid inverter Huawei SUN2000-8KTL-M1, 8kW

The inverter converts the direct current of the panels into alternating current and divides it between the loads, the battery and the grid. The battery is the part that moves energy in time: during the day it gathers what you do not consume, in the evening and at night it gives it back, so a larger part of the production stays in the building instead of going into the grid. The model is three-phase, cools without fans and monitors the electric arc on the direct current side, with detection assisted by artificial intelligence.

With 8.000 W of rated power it covers the consumption of a building with many circuits active at the same time, and on the panel side it accepts up to 12.000 Wp, that is approximately 1,5 times the output power. A LUNA2000 battery of 5-30 kWh connects directly to the inverter: charging at up to 10.000 W and discharging at up to 8.800 W, which means that the battery can support almost the entire power of the inverter in the evening. With the Backup Box-B1, during a power cut the essential loads stay supplied, at 3.300 VA. The device weighs 17 kg, measures 525 x 470 x 146,5 mm, has an IP65 enclosure for outdoor mounting and consumes less than 5,5 W at night.

8.000 W of rated active power and 8.800 VA apparent on a 220/380 V or 230/400 V grid (3W/N+PE), 50/60 Hz, 13,5 A maximum output current, THD below 3%, power factor adjustable 0,8 capacitive...0,8 inductive, maximum efficiency 98,6% / European 98,0%. DC: 2 MPPT with one string each, 1.100 V maximum, range 140-980 V (rated 600 V, start-up 200 V), 11 A/MPPT and 15 A short circuit, 12.000 Wp recommended (up to 20.000 Wp with SUN2000-450W-P optimisers) — at this power, the two string inputs limit the configuration, which is why optimisers or high-power modules are usual. LUNA2000 / Smart String ESS battery 5-30 kWh, 600-980 V, 16,7 A, 10.000 W charging / 8.800 W discharging. AFCI protections, insulation and residual current monitoring, type II SPD on DC and AC, anti-islanding, PID recovery; -25...+60 °C; EN/IEC 62109-1/-2, IEC 62116, VDE-AR-N 4105, EN 50438, CEI 0-21, G98/G99; RS485 and Smart Dongle-WLAN-FE, 4G optional.

Who it suits

Suitable for a guesthouse, a workshop or a large house with a three-phase connection and an 8-12 kWp system, that also wants a battery capable of supporting almost all the consumption in the evening.

Terms explained

• Optimiser (SUN2000-450W-P): A device mounted on each panel, which makes it work independently of the rest of the string; it helps on roofs with shading or with many orientations.
• Discharge power: How much the battery can deliver at a given moment; here, 8.800 W, that is enough to support almost the entire power of the inverter in the evening.
• AFCI: The protection that detects the spark from a loosened contact on the direct current cables and stops the installation before a fire can occur.

Technical specifications

Recommended applications

• Three-phase residential systems of 8-12 kWp
• Self-consumption with high-capacity LUNA2000 storage
• Backup supply with Backup Box-B1
• Guesthouses, workshops and company offices

Warranty

10 years standard in Europe (Huawei Residential Smart PV policy), optionally extendable

Technical details

Specifications confirmed from the manufacturer's datasheet

SUN2000-8KTL-M1 is a three-phase inverter of the Huawei Smart Energy Controller series (3-10 kW). It delivers 8.000 W of rated active power and 8.800 VA of maximum apparent power on a 220/380 V or 230/400 V grid (3W/N+PE), 50/60 Hz, with 13,5 A maximum output current, THD below 3% and a power factor adjustable between 0,8 capacitive and 0,8 inductive. The maximum efficiency is 98,6%, and the weighted European efficiency 98,0%.

The DC side has 2 MPPT trackers with one string input each, maximum voltage 1.100 V, working range 140-980 V, start-up at 200 V and rated voltage 600 V; the maximum current is 11 A/MPPT (15 A short circuit), at a maximum recommended PV power of 12.000 Wp (up to 20.000 Wp with SUN2000-450W-P optimisers).

The DC battery interface accepts Huawei LUNA2000 / Smart String ESS 5-30 kWh, 600-980 V, 16,7 A, with 10.000 W on charging and 8.800 W on discharging; together with the Backup Box-B1 it provides 3.300 VA in backup mode. Protections: AFCI, insulation and residual current monitoring, type II SPD on DC and AC, anti-islanding, PID recovery. IP65 enclosure, cooling by natural convection, 17 kg, 525 x 470 x 146,5 mm, -25...+60 C, night consumption below 5,5 W. RS485 communication, WLAN/Ethernet through Smart Dongle-WLAN-FE, 4G optional. Certifications: EN/IEC 62109-1/-2, IEC 62116, VDE-AR-N 4105, EN 50438, CEI 0-21, G98/G99.