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Fronius Symo 4.5-3-M

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Device type: on-grid; Network type: 1 phase (230 V)/3 phase (400 V); Maximum efficiency (%): 98; Rated power (W): 4500; Controller: 2xMMPT; built-in monitoring; Wi-Fi; USB; LAN (RJ45); RS485; Dimensions (mm): 645x431x204; Weight (kg): 19.9;
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Fronius Symo 4.5-3-M
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Fronius Symo 3.7-3-M
from $1,207.17 
on-grid, single-phase, three-phase, 3700 W, connection: RS485, USB, LAN (RJ45), Wi-Fi, MPPT controller, monitoring, work at -t °C, defence from: overload, overheating, short circuit, reverse polarity, IP65, 645x431x204 mm
Fronius Symo 4.5-3-M
SymomonitoringMPPT-t °CWi-Fi
3 kW
3.7 kW
4.5 kW
5 kW
6 kW
7 kW
8.2 kW
Main
Device typeon-grid
Network type1 phase (230 V)/3 phase (400 V)
Maximum efficiency98 %
AC input / output
Rated power4500 VA
Rated power4500 W
Peak power9000 W
Rated AC current6.5 A
Output waveformpure sine
Solar PV panels
Operating voltage PV150 – 800 V / DC /
Short circuit current62 А / 31 A MPP1, 31 A MPP2 /
Controller2xMMPT
Features and control
Functionsbuilt-in monitoring
Control interfacesWi-Fi
USB
LAN (RJ45)
RS485
Protectionreverse polarity protection
short circuit protection
overload protection
overheat protection
General
Displaymonochrome
Coolingactive (fans)
Casing protection classIP65
Operating temperature-25 °C ~ +60 °C
Dimensions645x431x204 mm
Weight19.9 kg
Official Websitefronius.com
Added to E-Catalognovember 2023
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Fronius 2025 - new arrivals, bestsellers, and the most relevant models Fronius.
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Series Fronius Symo (three-phase)Compare using chart →
Fronius Symo GEN24 3.0 Plus
from $1,632.99 
hybrid inverter, single-phase, three-phase, 3000 W, connection: RS485, LAN (RJ45), Wi-Fi, MPPT controller, monitoring, function UPS, work at -t °C, defence from: overload, overheating, short circuit, reverse polarity, IP66, 530x474x165 mm
Fronius Symo GEN24 4.0 Plus
from $1,742.27 
hybrid inverter, single-phase, three-phase, 4000 W, connection: RS485, LAN (RJ45), Wi-Fi, MPPT controller, monitoring, function UPS, work at -t °C, defence from: overload, overheating, short circuit, reverse polarity, IP66, 530x474x165 mm
Fronius Symo GEN24 5.0 Plus
from $1,834.50 
hybrid inverter, single-phase, three-phase, 5000 W, connection: RS485, LAN (RJ45), Wi-Fi, MPPT controller, monitoring, function UPS, work at -t °C, defence from: overload, overheating, short circuit, reverse polarity, IP66, 530x474x165 mm
Fronius Symo 3.7-3-M
from $1,207.17 
on-grid, single-phase, three-phase, 3700 W, connection: RS485, USB, LAN (RJ45), Wi-Fi, MPPT controller, monitoring, work at -t °C, defence from: overload, overheating, short circuit, reverse polarity, IP65, 645x431x204 mm
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