Fronius Symo 20.0-3-M WLAN/LAN

INPUT DATA	Fronius Symo 20.0-3-M
Max. input current  (Idc max1 / Idc max2)	33.0 A / 27.0 A
Max. usable input current total  (Idc max1 + Idc max2)	51.0 A
Max.array short circuit current (MPP1 / MPP2)	49.5 A / 40.5 A
Min. input voltage (Udc min)	200 V
Feed-in start voltage (Udc start)	200 V
Nominal input voltage (Udc,r)	600 V
Max. input voltage (Udc max)	1,000 V
MPP voltage range (Umpp min - Umpp max)	420 - 800 V
Number of MPP trackers	2
Number of DC connections	3 + 3
Max. PV generator output (Pdc max)	30.0 kWpeak
OUTPUT DATA
AC nominal output (Pac,r)	20,000 W
Max. output power	20,000 VA
AC output current (Iac nom)	28.9 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	1.3 %
Power factor (cos φac,r)	0 - 1 ind. / cap.
GENERAL DATA
Dimensions (height x width x depth)	725 x 510 x 225 mm
Weight	43.4 kg
Degree of protection	IP 66
Protection class	1
Overvoltage category (DC / AC)1)	1 + 2 / 3
Night time consumption	< 1 W
Inverter design	Transformerless
Cooling	Regulated air cooling
Installation	Indoor and outdoor installation
Ambient temperature range	-40°C to +60°C
Permitted humidity	0 % to 100 %
Max. altitude	2,000 m / 3,400 m (unrestricted / restricted voltage range)
DC connection technology	6x DC+ and 6x DC- screw terminals 2.5 mm² - 16 mm²
AC connection technology	5-pin AC screw terminals 2.5 mm² - 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, CEI 0-16, CEI 0-21, NRS 097
EFFICIENCY
Max. efficiency	98.1 %
European efficiency (ηEU)	97.9 %
η at 5 % Pac,r2)	91.9 / 95.2 / 93.0 %
η at 10 % Pac,r2)	94.8 / 96.9 / 95.8 %
η at 20 % Pac,r2)	96.3 / 97.8 / 97.1 %
η at 25 % Pac,r2)	96.7 / 97.9 / 97.4 %
η at 30 % Pac,r2)	96.8 / 98.0 / 97.6 %
η at 50 % Pac,r2)	97.0 / 98.1 / 97.8 %
η at 75 % Pac,r2)	97.0 / 98.1 / 97.7 %
η at 100 % Pac,r2)	96.8 / 98.0 / 97.6 %
MPP adaption efficiency	> 99.9 %
PROTECTIVE 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 in/out	Interface to ripple control receiver
USB (type A socket)3)	Datalogging, inverter update via USB flash drive
2 x RS422 (RJ45 socket)3)	Fronius Solar Net, Interface protocol
Signalling Output3)	Energy management (floating relay output)
Datalogger and Webserver	Included
External Input3)	S0 meter connection / Evaluation of overvoltage protection
RS485	Modbus RTU SunSpec or meter connection

¹⁾ Testing to IEC 62109-1. DIN rail for optional type 1 + 2 and type 2 overvoltage protection available. 
²⁾ And at U_{mpp min} / U_dc,r / U_{mpp max}
³⁾ Also available in the light version.

Subject to modifications.