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FRONIUS Symo 4.5-3-S

With power 4,5 kW, the transformerless Fronius Symo is a three-phase inverter. The high system voltage, wide input voltage range and a MPP tracker ensure maximum flexibility in system design.


SKU: symo-4.5-3-S
3148 €1,605.48 VAT included

Availability: Backorder

Delivery time: 8-30 days

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FRONIUS Symo 4.5-3-S is available for purchase in increments of 1
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With power 4,5 kW, the transformerless Fronius Symo is a three-phase inverter. The high system voltage, wide input voltage range and a MPP tracker ensure maximum flexibility in system design.

Technical Data

INPUT DATAFronius Symo 4.5-3-SFronius Symo 4.5-3-M
Max. input current
(Idc max 1 / Idc max 21))		 16.0 A / 16.0 A

Max. array short circuit current (MPP1/MPP21))

 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 at Pnom
(Umpp min – Umpp max)		 300 - 800 V 150 - 800 V
Usable MPP voltage range 150 - 800 V
Number of MPP trackers 1 2
Number of DC connections 3 2 + 2
Max. PV generator output (Pdc max) 9.0 kWpeak  9.0 kWpeak
OUTPUT DATA    
AC nominal output (Pac,r) 4,500 W 4,500 W
Max. output power 4,500 VA 4,500 VA
AC output current
(Iac nom)		 6.5 A 6.5 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) 0.70 - 1 ind. / cap. 0.85 - 1 ind. / cap.
GENERAL DATA    
Dimensions
(height x width x depth)		 645 x 431 x 204 mm
Weight 16.0 kg 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 - +60 °C
Permitted humidity 0 - 100 %
Max. altitude 2,000 m / 3,400 m (unrestricted / restricted voltage range)
DC connection technology 3x DC+ and 3x DC- screw terminals 2.5 - 16 mm² 4x DC+ and 4x DC- screw terminals 2.5 - 16 mm² 3)
AC connection technology 5-pin AC screw terminals 2.5 - 16 mm²  5-pin AC screw terminals 2.5 - 16 mm² 3)
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) 97.0 % 97.2 %
η at 5 % Pac,r4) 84.8 / 88.5 / 82.8 % 83.4 / 90.3 / 85.0 %
η at 10 % Pac,r4) 91.7 / 93.7 / 90.3 % 89.2 / 94.1 / 91.2 %
η at 20 % Pac,r4) 94.6 / 96.3 / 94.5 % 92.8 / 96.5 / 95.1 %
η at 25 % Pac,r4) 95.2 / 96.8 / 95.4 % 93.5 / 97.0 / 95.8 %
η at 30 % Pac,r4) 95.6 / 97.2 / 95.9 % 94.2 / 97.3 / 96.3 %
η at 50 % Pac,r4) 96.4 / 97.7 / 97.0 % 94.9 / 97.8 / 97.2 %
η at 75 % Pac,r4) 96.6 / 98.0 / 97.4 % 95.1 / 98.0 / 97.5 %
η at 100 % Pac,r4) 96.6 / 98.0 / 97.5 % 95.0 / 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)5) Datalogging, inverter update via USB flash drive
2x RS422 (RJ45 socket 5) Fronius Solar Net, interface protocol
Signalling output5) Energy management (floating relay output)
Datalogger and Webserver Included
External input5) S0 meter connection / Evaluation of overvoltage protection
RS485 Modbus RTU SunSpec or meter connection


1) This applies to Fronius Symo 3.0-3-M, 3.7-3-M and 4.5-3-M
2) Testing to IEC 62109-1.
3) 16 mm² without ferrules
4) And at Umpp min / Udc,r / Umpp max
5) Also available in the light version.

Subject to modifications

View FileCE Декларация / CE Declaration    File size: (162.79 KB)