Three-phase Fronius SYMO 3.7-3-S WiFi inverter
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Description
SnapINverter Assembly System
Ethernet and WiFi Communication
Dynamic Peak Manager
Smart Grid Ready
SuperFlex Design
Power Output Limitation
Three-phase Fronius SYMO 3.7-3-S WiFi Inverter
Transformer-free three-phase grid inverter Fronius Symo with 3.7 kW power. Thanks to the SuperFlex Design solution, Fronius Symo works well in installations on roofs of irregular shape or oriented in different directions.
Internet access via Ethernet or WiFi connection and easy integration with third-party components make Fronius Symo one of the most compatible inverters on the market. Additionally, the interface for an intelligent energy meter allows dynamic management of energy feed-in to the grid and ensures visualization of self-consumption of generated energy.
Technical Data
| Input Data | |
| Fronius SYMO 3.7-3-S WiFi | |
| Number of MPP trackers | 1 |
| Max. input current | 16 A |
| Max. short-circuit current | 24 A |
| Input voltage range | 150 - 1000 V |
| Start-up voltage | 200 V |
| Useful MPP voltage range | 150 - 800 V |
| Number of strings per MPP tracker | 3 |
| Maximum PV generator power | 7.4 kWp |
| Output Data | |
| Fronius SYMO 3.7-3-S WiFi | |
| AC rated power | 3700 W |
| Max. output power | 3700 VA |
| Max. output current | 5.3 A |
| Grid connection | 3~~NPE 400V / 230V or 3~~NPE 380 V / 220 V (+20 % / -30 %) |
| Frequency | 50 Hz / 60 Hz (45 - 65 Hz) |
| Harmonic content factor THD | < 3 % |
| Power factor | 0.70 - 1 ind / cap. |
| General Data | |
| Fronius SYMO 3.7-3-S WiFi | |
| Dimensions (height x width x depth) | 645 x 431 x204 mm |
| Weight | 16 kg |
| Degree of protection | IP 65 |
| Safety class | 1 |
| Overvoltage category (DC / AC) | 2 / 3 |
| Night-time energy consumption | < 1 W |
| Inverter topology | Transformer-free |
| Cooling | Controlled forced ventilation |
| Installation | Indoor and outdoor installation |
| Ambient temperature range | -25 -+60 |
| Permissible air humidity | 0 - 100 % |
| Max. altitude above sea level | 2000 m / 3400 m (unlimited / limited voltage range) |
| DC connection terminals | 3x DC+ and 3x DC - screw terminals 2.5-16mm2 |
| AC connection terminals | 5-pin screw terminals 2.5-16mm2 |
| Technical Data | |
| Fronius SYMO 3.7-3-S WiFi | |
| Max. efficiency | 98 % |
| European weighted efficiency | 96.7 % |
| Adaptation efficiency | >99.9 % |
| DC insulation measurement | Yes |
| Overload behavior | Operating point shift, output power limitation |
| DC disconnector | Yes |
| Reverse polarity protection | Yes |
| Interfaces / Communication | |
| WLAN / Ethernet LAN | Fronius Solar.web, Modbus TCP SunSpec, Fronius Solar API (JSON) |
| 6 inputs and 4 digital inputs/outputs | Connection to remote control receiver |
| USB (Type A socket) | For USB media: data collection, inverter software update |
| 2x RS422 (RJ45 socket) | Fronius Solar Net |
| Relay output | Energy management (floating relay output) |
| Data logger and webserver | Integrated |
| Signal input | S0 meter connection / Surge protector status monitoring |
| RS485 | Modbus RTU SunSpec or intelligent energy meter connection |
Warranty terms and period are described in the attachment. Remember to register the inverter after purchase to receive an extended warranty.
Technical data
| Power | 3700 W |
| Width | 431 mm |
| Length | 204 mm |
| Height | 645 mm |
| Weight | 16 kg |
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