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Helios SystemsWind&Sun Technologies Company

Inverters made by FeCon GmbH

www.helios-systems.net

Tel.: 0049 461 430 122-0 Fax: 0049 461 430 122-11 E-Mail: info@fe-con.com

String Inverter

Transformerless Inverter

The string inverter HSI20 is a special transformerless development for TN-grids. The inverter was designed using the

newest efficiency-opmized technology in order to get higher returns from the solar installaon. Right from the start, all

devices to be installed were chosen with respect to loss reducon: The IP65 casing is especially developed for outdoor

use and is protected against dust and water. The clear display enables the visualizaon of the last 365 days. The monitor-

ing can be provided with our Data Logger and our soware as well as with the solar log.

The sum of these measures leads to a maximum efficiency of 98.0 %. The EU efficiency reaches outstanding 97.6 %. This

high efficiency is unique for inverters of this technology and offers mulple advantages to the user:

More energy from the photovoltaic array is fed to the grid, therefore a higher rate of return is obtained.

Less waste heat has to be dissipated out of the already warm operang room.

The reducon of losses increases the lifeme of the internal components.

The system is designed for low maintenance and long lifeme. Within the development process of the HSI20, a major

design criterion was the simpleness and safety of the operang system for the inverter. This was achieved by a clear

desktop. The inverter automacally stores all relevant measuring data over a period of up to one year. The extreme silent

inverter can be used anywhere.

HSI20

HSI20

8/12/2019 Datasheet HSIx0020 V16 Eng

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Technical Data Version 1.6

Helios SystemsWind&Sun Technologies Company

Inverters made by FeCon GmbH

www.helios-systems.net

Tel.: 0049 461 430 122-0 Fax: 0049 461 430 122-11 E-Mail: info@fe-con.com

Technical Data HSI20

Electrical Data

Rated AC-power at 10 % of rated grid voltage 20 kW

Maximum AC-power at rated grid voltage 21 kW

Rated grid voltage other voltage levels and frequencies on request 400 V, 3~, 50 Hz, TN-gr id

Short circuit level

Maximum AC-current 63 A

Line power factor (cos ) at 20% rated power > 0,99

AC-current distoron (THD) at rated power < 3 %

Rated PV-power within 10 % of rated grid voltage 18 kW - 25 kW

Maximum PV-power at rated grid voltage 22 kW

Maximum PV-current 2 x 30 A

Maximum PV no-load-voltage 1000 V

MPP-area at rated PV-power 350 V= to 1000 V=

Control strategy MPP- MPP-Tracking

Efficiency at (10|30|50|75|100) % power max. 98,1%

EU efficiency incl. transf. losses / inductor and auxiliary losses 97,5%

EU effic iency incl. transf. losses / inductor, excl. auxiliary losses

EU efficiency excl. auxiliary losses

Feed-in starng at 40 W

Standby losses / at night < 3 W

Maximum auxiliary power

General Data

Ambient temperature (others on request) -20C to 40 C / 60C, power reduced

Relave humidity non-condensing < 90 %

Maximum altude without derang in power

Cooling type Forced air coolingMinimum air quality acc. to EN60721-3-3

Protecon class IP65 (Elektronic), IP55 (other)

Dimensions H x W x D 960 mm x 612 mm x 278 mm

Weight 65 kg

Container surface

Colour of cabinet / colour of container (others on request) Powder coated aluminum

EMI Complies EN 6100-6-2, EN 61000-6-4

Grid quality requirements Complies EN 50178

Approval

Grid monitoring Complies VDEW requirements

CE-conformity Complies

Features

DC-disconnector DC-disconnector

AC-disconnector Grid contactor

Display Graphical display black and white

Earth leakage detecon

Surge arresters

LVRT-Handling

Communicaon Cabinet

Heang

Opons

Data Logger DL20

Solarlog