Invertor Huawei SUN2000-20KTL-M5 20kW on-grid trifazat

It is a grid inverter for buildings: it takes the direct current from the panels and converts it into the three-phase current used by the equipment in the building, without a battery. The energy produced is consumed on the spot, and the surplus goes into the grid. It permanently monitors the direct current cables and stops the installation if an electric arc appears, that is a spark in a loosened contact or in a damaged cable, a real risk on large installations, with many connections.

With 20,000 W rated and up to 30,000 Wp of panels accepted, that is a ratio of 1.5 between the power of the panels and that of the inverter, it suits a hall, a farm or an office building that consumes during working hours. The two MPPTs accept up to 4 strings, so the roof can be divided into several zones, with different orientations. The IP66 enclosure is more sealed than the usual IP65 and withstands outdoor installation in harsh conditions, between -25 and +60 C, up to 4,000 m altitude. It weighs 21 kg and measures 546 x 460 x 228 mm, and the smart air cooling adapts the ventilation to the momentary load.

20,000 W rated, 22,000 VA maximum apparent power, maximum efficiency 98.4% and weighted European 98.1%. DC input maximum 1,100 V, up to 30,000 Wp (DC/AC ratio 1.5), start-up 200 V, rated input voltage 600 V; two MPPTs with a range of 200-1,000 V (480-800 V at full load), maximum 4 strings, 30 A per MPPT with two strings or 20 A on a single string, Isc 40 A. Three-phase output 220/380 V, 230/400 V and 239.6/415 V (3W+N+PE), 50/60 Hz, 31.9 A at 400 V, power factor adjustable between 0.8 capacitive and 0.8 inductive, THD below 3%; IP66, 546 x 460 x 228 mm, 21 kg, smart air cooling, -25...+60 C, up to 4,000 m. AFCI with active arc fault protection, string fault detection, residual current monitoring, type II SPD on DC and AC, DC switch on the input side; RS485 communication, WLAN/Ethernet through Smart Dongle-WLAN-FE or 4G; compliant with EN/IEC 62109-1/-2 and with the codes VDE-AR-N 4105, VDE-AR-N 4110, EN 50549, CEI 0-21, CEI 0-16, G99, C10/11, TOR D4, IEC 61727, IEC 62116.

Who it suits

Suitable for halls, farms, office buildings and small photovoltaic parks, with a three-phase connection and a 20-30 kWp installation, where the energy is consumed during working hours.

Terms explained

• IP66: The sealing code of the enclosure: completely protected from dust and resistant to powerful water jets, so it can be mounted outside, exposed.
• String fault detection: The function that signals whether a string of panels produces less than it should or has been interrupted, so that the problem is noticed quickly.
• Grid code: The set of rules imposed by the grid operator for equipment that injects energy; the listed certifications show for which markets the inverter is approved.

Technical specifications

Recommended applications

• Small commercial and industrial rooftop systems
• Farms, halls and office buildings with three-phase consumption
• Low power photovoltaic parks
• Systems with Huawei optimisers for irregular roofs

Warranty

5 years standard manufacturer warranty, extendable for a fee

Technical details

Specifications confirmed from the manufacturer's datasheet

SUN2000-20KTL-M5 is a three-phase 20 kW grid inverter from the M5 generation, with 22,000 VA maximum apparent power, maximum efficiency 98.4% and weighted European efficiency 98.1%. The DC side accepts up to 30,000 Wp of modules (DC/AC ratio of 1.5), maximum voltage 1,100 V, start-up at 200 V and rated input voltage 600 V. The two MPPTs cover 200-1,000 V (480-800 V at full load) and accept a maximum of 4 strings, with 30 A per MPPT with two strings (20 A on a single string) and 40 A short-circuit current.

The three-phase output covers 220/380 V, 230/400 V and 239.6/415 V (3W+N+PE), 50/60 Hz, with 31.9 A at 400 V, power factor adjustable 0.8 capacitive - 0.8 inductive and THD below 3%. The IP66 enclosure (546 x 460 x 228 mm, 21 kg) uses smart air cooling and works between -25 and +60 C, up to 4,000 m altitude.

Features: AFCI with active arc fault protection, string fault detection, residual current monitoring, type II SPD on DC and AC, DC switch on the input side. RS485 communication, WLAN/Ethernet through Smart Dongle-WLAN-FE or 4G. Compliant with EN/IEC 62109-1/-2 and with the codes VDE-AR-N 4105, VDE-AR-N 4110, EN 50549, CEI 0-21, CEI 0-16, G99, C10/11, TOR D4, IEC 61727, IEC 62116.