Boasting power categories ranging from 3.0 to 20.0 kW, the transformerless Fronius Symo is the three-phase inverter for systems of every size. The high system voltage, wide input voltage range and two MPP trackers ensure maximum flexibility in system design. The standard interface to the internet via WLAN or Ethernet and the ease of integration of third-party components make the Fronius Symo one of the most communicative inverters on the market.
| INPUT DATA | |
|---|---|
| Max. input current (Idc max1 / Idc max2) 1) |
16.0 A / 16.0 A |
| Max. array short circuit (MPP1 / MPP2) 1) | 24,0 A / 24,0 A |
| Min. input voltage (Udc min) |
150 V |
| Feed-in start voltage (Udc start) |
200 V |
| Nominal input voltage (Udc,r) | 595 V |
| Max. input voltage (Udc max) |
1,000 V |
| MPP voltage range (Umpp min - Umpp max) |
150 - 800 V |
| Number MPP trackers | 2 |
| Number of DC connections | 2 + 2 |
| OUTPUT DATA | |
| AC nominal output (Pac,r) | 3.700 W |
| Max. output power | 3.700 VA |
| Max. output current (Iac max) | 5.3 A |
| Grid connection (voltage range) | 3~NPE 400 V / 230 V or 3~NPE 380 V / 220 V (+20 % / -30 %) |
| Frequency (frequency range) | 50 Hz / 60 Hz (45 - 65 Hz) |
| Total harmonic distortion | < 3 % |
| Power factor (cos φac,r) | 0.85 - 1 ind. / cap. |
| GENERAL DATA | |
| Dimensions (height x width x depth) |
645 x 431 x 204 mm |
| Weight | 19.9 kg |
| Degree of protection | IP 65 |
| Protection class | 1 |
| Overvoltage category (DC / AC) 2) | 2/3 |
| Night time consumption | < 1 W |
| Inverter design | Transformerless |
| Cooling | Regulated air cooling |
| Installation | Indoor and outdoor installation |
| Ambient temperature range | -25°C to +60°C |
| Permitted humidity | 0 - 100 % |
| Max. altitude | 2,000 m / 3,400 m (unrestricted / restricted voltage range) |
| DC connection technology | 4x DC+ and 4x DC- screw terminals 2.5 - 16 mm² |
| Mains 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, AS 4777-2, AS 4777-3, CER 06-190, G83/2, UNE 206007-1, SI 4777 1), CEI 0-211), NRS 097 |
| EFFICIENCY | |
| Max. efficiency | 98,0 % |
| European efficiency (ηEU) | 96,9 % |
| η at 5 % Pac,r2) 4) | 81,6 / 87,8 / 82,8 % |
| η at 10 % Pac,r2) 4) | 87,9 / 93,6 / 90,5 % |
| η at 20 % Pac,r2) 4) | 91,9 / 96,0 / 94,1 % |
| η at 25 % Pac,r2) 4) | 92,9 / 96,6 / 95,2 % |
| η at 30 % Pac,r2) 4) | 93,5 / 97,0 / 95,8 % |
| η at 50 % Pac,r2) 4) | 94,6 / 97,7 / 96,8 % |
| η at 75 % Pac,r2) 4) | 95,0 / 97,9 / 97,4 % |
| η at 100 % Pac,r2) 4) | 95,1 / 98,0 / 97,5 % |
| MPP adaption efficiency | > 99.9 % |
| PROTECTIVE DEVICES | |
| DC insulation measurement | Yes |
| Overload behaviour | Operating point shift, power limitation |
| DC disconnector | 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) 5) | Datalogging, inverter update via USB flash drive |
| 2 x RS422 (RJ45 socket) 5) | Fronius Solar Net, Interface protocol |
| Signalling output 5) | Energy management (floating relay output) |
| Datalogger and Webserver | Included |
| External input 3) | S0 meter connection / Evaluation of overvoltage protection |
| RS485 | Modbus RTU SunSpec or meter connection |
