Fronius Symo 20.0-3-M 20KW Inverter
Fronius Symo 20.0-3-M 20KW Inverter With power categories ranging from 3.0 to 20.0 kW, the transformerless Fronius Symo is the three-phase inverter for every system size. Owing to the SuperFlex Design, the Fronius Symo is the perfect answer to irregularly shaped or different roof orientations. A WLAN or Ethernet internet connection as standard plus easy integration of third-party components make the Fronius Symo one of the most communicative inverters on the market. Furthermore, the meter interface permits dynamic feed-in management and a clear visualisation of consumption.
Fronius Symo 20.0-3-M 20KW Inverter PRODUCT DETAILS
INPUT DATA
| 
 Number of MPP trackers 
 | 
2,0 | 
|---|---|
| 
 Max. input current (Idc max) 
 | 
33,0 / 27,0 A | 
| 
 Max. short circuit current, module array 
 | 
49,5 / 40,5 A | 
| 
 DC input voltage range (Udc min – Udc max) 
 | 
200 – 1000 V | 
| 
 Feed-in start voltage (Udc start) 
 | 
200,0 V | 
| 
 Nominal input voltage (Udc,r) 
 | 
600,0 V | 
| 
 MPP voltage range (Umpp min – Umpp max) 
 | 
420 – 800 V | 
| Usable MPP voltage range | 200 – 800 V | 
| Number of DC connections | 3 + 3 | 
| 
 Max. PV generator power (Pdc max) 
 | 
30,0 kWpeak | 
OUTPUT DATA
| 
 AC nominal output (Pac,r) 
 | 
20,0 kW | 
|---|---|
| 
 Max. output power (Pac max) 
 | 
20,0 kVA | 
| 
 AC output current (Iac nom) 
 | 
28,9 A | 
| 
 Grid connection (Uac,r) 
 | 
3~ NPE 400/230, 3~ NPE 380/220 V | 
| 
 AC voltage range (Umin – Umax) 
 | 
150 – 280 V | 
| 
 Frequency (fr) 
 | 
50 / 60 Hz | 
| 
 Frequency range (fmin – fmax) 
 | 
45 – 65 Hz | 
| 
 Total harmonic distortion 
 | 
1,3 % | 
| 
 Power factor (cos φac,r) 
 | 
0 – 1 ind./cap. | 
GENERAL DATA
| Height | 725,0 mm | 
|---|---|
| Width | 510,0 mm | 
| Depth | 225,0 mm | 
| Weight | 43,4 kg | 
| Degree of protection | IP 66 | 
| Protection class | 1,0 | 
| 
 Overvoltage category (DC / AC) 1) 
 | 
2 / 3 | 
| Night-time consumption | < 1 W | 
| Inverter design | Transformerless | 
| Cooling | Regulated air cooling | 
| Installation | Indoors and outdoors | 
| Ambient temperature range | -40°C – +60°C | 
| Permitted humidity | 0 – 100 % | 
| 
 Max. altitude 2) 
 | 
2.000 m / 3.400 m | 
| DC connection technology | 6x DC+ and 6x DC- screw terminals 2.5 – 16 mm² | 
| AC connection technology | 5-pin AC screw terminals 2.5 – 16 mm² | 
| Certificates and compliance with 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,<br /> AS 4777-2, AS 4777-3, CER 06-190, G83/2, UNE 206007-1, SI 4777, CEI 0-16, CEI 0-21, NRS 097 | 
EFFICIENCY
| Max. efficiency (PV – grid) | 98,1 % | 
|---|---|
| European efficiency (ηEU) | 97,9 % | 
| 
 η at 5% Pac,r 3) 
 | 
91,9 / 95,2 / 93,0 % | 
| 
 η at 10% Pac,r 3) 
 | 
94,8 / 96,9 / 95,8 % | 
| 
 η at 20% Pac,r 3) 
 | 
96,3 / 97,8 / 97,1 % | 
| 
 η at 25% Pac,r 3) 
 | 
96,7 / 97,9 / 97,4 % | 
| 
 η at 30% Pac,r 3) 
 | 
96,8 / 98,0 / 97,6 % | 
| 
 η at 50% Pac,r 3) 
 | 
97,0 / 98,1 / 97,8 % | 
| 
 η at 75% Pac,r 3) 
 | 
97,0 / 98,1 / 97,7 % | 
| 
 η at 100% Pac,r 3) 
 | 
96,8 / 98,0 / 97,6 % | 
| MPP adaptation efficiency | > 99,9 % | 
PROTECTION DEVICES
| DC insulation measurement | Yes | 
|---|---|
| Overload behaviour | Operating point shift, power limitation | 
| DC disconnector | Yes | 
| Reverse polarity protection | Yes | 
INTERFACES
| WLAN / Ethernet LAN | Fronius Solar.web, Modbus TCP SunSpec, Fronius Solar API (JSON) | 
|---|---|
| 6 inputs and 4 digital inputs/outputs | Interface to ripple control receiver | 
| 
 USB (type A socket) 4) 
 | 
Data logging, inverter update via USB flash drive | 
| 
 2x RS422 (RJ45 socket) 4) 
 | 
Fronius Solar Net | 
| 
 Signalling output 4) 
 | 
Energy management (floating relay output) | 
| Datalogger and web server | Integrated | 
| 
 External input 4) 
 | 
S0 meter connection / Evaluation of overvoltage protection | 
| RS485 | Modbus RTU SunSpec or meter connection | 

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