Edgeband inverter Fronius Eco 25.0-3-S Light (25 kW, 3 phases, 1 tracker)

Fronius Eco 25.0-3-S compact inverter providing maximum generation

The three-phase Fronius Eco inverter with power categories 25.0 and 27.0 kW ideally meets all the requirements of large-scale installations. Thanks to its light weight and SnapINverter mounting system, the inverter is quick and easy to install both indoors and outdoors. This series of inverters is equipped with IP 66 protection and claims to introduce new quality standards. In addition, integrated fuse holders and an additional DC fuse eliminate the need for daisy chain blocks.

The LIGHT version does not have WLAN on board. The Light configuration does not have a communication module for connecting a Smart Meter.

TECHNICAL DATA

INPUT DATA
Number of MPP trackers (maximum power point controllers): 1
Max. input current (Idc max): 44.2 A
Max. Short circuit current, module array: 80 A
DC input voltage range (Udc min - UDC max): 580 - 1000 V
Initial supply voltage (Udc start): 650 V
Nominal input voltage (Udc,r): 580 V
Voltage range for maximum power point (Umpp min - Umpp max): 580 - 850 V
Optimal maximum power point voltage range: 580 – 850 V
Number of DC connections: 6
Maximum power of the PV generator (Pdc max): 37.8 kWpeak

INITIAL DATA
Rated AC voltage (Pac,r): 25 kW
Maximum output power (Pac max): 25 kVA
Output AC current (Iac nom): 37.9 / 36.2 A
Electrical connection (Uac,r): 3~ NPE 400/230, 3~ NPE 380/220 V
AC voltage range (Umin - Umax): 150 - 275 V
Frequency (fr): 50/60 Hz
Frequency range (fmin - fmax): 45 - 65 Hz
Total Harmonic Distortion: <3% @Pnom (230/400VAC 50Hz)
Power factor (cos φac,r): 0 - 1 ind,/cap,

COMMON DATA
Overall dimensions/width: 512 mm
Dimensions/height: 751 mm
Depth: 227.5 mm
Weight: 35.5 kg
Weight with packaging: 39.5 kg
Protection class: IP 66
Safety class: 1
Overload category (DC/AC) 1): 2/3
Night consumption: < 1 W
Inverter design: Transformerless
Cooling: Adjustable cooling air
Installation: Indoors and outdoors
Ambient temperature range: -25°C - +60°C
Permissible air humidity: 0 – 100%
Max. altitude 2): 2,000 m / 2,500 m
DC connection technology: 6 screw terminals with a cross-section of 2.5–16 mm² per pole (DC+/DC–)
AC connection technology: 5-pin AC screw terminals, 2.5 - 16 mm²
Certificates and standards: ÖVE/ÖNORM E 8001-4-712, DIN V VDE 0126-1-1/A1, VDE AR ​​N 4105, IEC 62109-1/-2, IEC 62116, IEC 61727,
AS 3100, AS 4777-2, AS 4777-3, CER 06-190, G99, UNE 206007-1, SI 4777, CEI 0-16, CEI 0-21
Noise generation level: 60.3 dB(A)
Interference class: B

EFFICIENCY
Maximum efficiency (photovoltaic system - electrical grid): 98.2%
Efficiency according to European standards (ηEU): 98.0%
η for 5% Pac,r 3): 95.1/91.5%
η for 10% Pac,r 3): 97.0/95.2%
η for 20% Pac,r 3): 97.8/96.9%
η for 25% Pac,r 3): 98.0/97.0%
η for 30% Pac,r 3): 98.1/97.2%
η for 50% Pac,r 3): 98.2/97.5%
η for 75% Pac,r 3): 98.2/97.5%
η for 100% Pac,r 3): 98.2/97.5%
Maximum power point adaptation efficiency: > 99.9%

PROTECTIVE DEVICES
DC loop insulation measurement: Yes
Algorithm of action in case of overload: Shift of operating point, power limitation
DC Fuse: Yes
Built-in fuse holder: Yes
DC Reverse Polarity Protection: Yes

INTERFACES
Wireless network (Wi-Fi) / Ethernet LAN: Fronius Solar.web, Modbus TCP SunSpec, Fronius Solar API (JSON)
6 inputs and 4 digital inputs/outputs: Trigger monitoring receiver interface
USB (Type A connector) 4): Data logging, inverter update via USB flash drive
2 RS422 (RJ45 connector) 4): Fronius Solar Net
Signal output 4): Energy management (relay output with galvanic isolation)
Datalogger board and web server: Built-in
External input 4): S0 meter connection/surge protection evaluation
RS485: Modbus RTU SunSpec or meter connection

NOTE FOR TECHNICAL DATA
1) According to IEC 62109-1. DIN rail available for optional Type 1+2 or Type 2 surge protector.
2) Unlimited/limited voltage range.
3) At minimum input voltage (Umpp min) / rated input voltage (Udc,r) / maximum input voltage (Umpp max).
4) A simplified version is also available.

SNAPINVERTER TECHNOLOGY
SnapINverter inverters have a simple, standardized mounting system, making installation and maintenance as easy as possible. A design feature of the device is that the connection area is separated from the power block module. These elements are installed separately. First, a very easy to use connection area and all its cables are attached to the wall, and then the power block is attached. With the innovative hinge system, installation and maintenance are very user-friendly. The inverter only needs to be inserted into the wall mounting bracket and secured. This means that for maintenance you do not need to remove the entire inverter; it is enough to remove only the power unit. All cables remain in place.

BUILT-IN COMMUNICATION INTERFACES
We are the first inverter manufacturer to offer a communications package with a fully integrated data logging system, wireless or Ethernet connectivity, generation and demand management, web server and a range of interfaces. The inverter connects to the Internet without the need for additional cables, and you are guaranteed a perfect overview of the operation of the photovoltaic system. Connection to third party components is made using interfaces such as Modbus TCP SunSpec, Modbus RTU SunSpec and Fronius Solar API (JSON). Open interfaces can be used in parallel with Fronius Solar.web.

SMART GRID READY
Fronius inverters are ready for the intelligent Smart Grid of tomorrow, meet all the technical requirements of the grids of the future and are optimally equipped to meet the technical requirements of the grids of the future. A whole series of intelligent capabilities, so-called Advanced Grid functions, are already built into the inverters, including a number of control functions for optimizing the export of reactive and active power to the grid. These features are designed to ensure stable grid operation even in high-density photovoltaic systems and to prevent unwanted power outages and therefore reduced energy output due to grid out-of-range conditions. In this way, Fronius inverters ensure optimal operation of the photovoltaic system. In addition, if power supply limitation is set, Fronius inverters may provide dynamic supply control to maximize self-consumption. Simply connect the meter and set the flow limit.

DYNAMIC PEAK MANAGER
Dynamic Peak Manager is a new peak power point tracking algorithm that dynamically adapts behavior to find the optimal operating point. The special feature is that Dynamic Peak Manager automatically checks the entire performance curve regularly and determines the global maximum power point (GMPP), even if the panels are partially shaded.

ZERO EXPORT ONLINE
Today, a growing number of power system operators around the world are demanding restrictions on the export of photovoltaic electricity before connecting the system to the electrical grid. With its dynamic power reduction function, Fronius offers an effective solution for optimizing the management of energy exports. First of all, the inverter powers electrical appliances in the house, and then reduces energy production to the maximum permissible level permitted by the operator. This function allows Fronius inverters to completely limit the export of photovoltaic energy to the grid. The corresponding network operator restrictions can be met thanks to the simple configuration of the inverter via the web interface.

ACTIVE COOLING
Active cooling technology uses one or more fans to not only prevent hot spots, but also regulate air circulation inside the inverter, thereby keeping the power electronics cool. This has a positive effect on the service life of the devices, as well as optimizing operation and saving money. Fronius uses active cooling technology by default on all devices.