Fronius
String inverter Fronius Symo 4.5-3-M 4.5 kW three-phase 2 MPPT 4,210,033
String inverter Fronius Symo 4.5-3-M 4.5 kW three-phase 2 MPPT 4,210,033
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€1,610.83
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€1,610.83
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Delivery in 10-20 daysString inverter4.5 kW2 MPPTFronius
String inverter Fronius Symo 4.5-3-M 4.5 kW three-phase 2 MPPT 4,210,033
The Fronius Symo 4.5-3-M is a three-phase string inverter rated 4.5 kW for grid-connected PV systems: it converts the energy of the modules into alternating current and feeds it into the building installation or the grid.
The interface protections and grid parameters are those required for connection in Italy to CEI 0-21 (low voltage) and CEI 0-16 (medium voltage). The inputs are 2 MPPT, with independent MPPT tracking: useful when the strings have different exposure or when part of the array is shaded for some hours of the day.
Fronius has been designing and building in Austria since 1992: its PV range is known for active cooling, modular boards and a widely used in-warranty replacement service.
Key strengths
MPPT trackingIndependent inputs get the most out of strings with different orientation or shading.
High efficiencyElectronics sized for low conversion losses across the whole load curve.
CEI complianceGrid settings for connection in Italy to CEI 0-21 and CEI 0-16.
Built-in monitoringManufacturer portal and app for yield, alarms and string data.
Standard protectionsDC disconnector, surge protection and insulation monitoring to earth.
Outdoor installationProtected enclosure for wall mounting even outside the plant room.
Technical specifications
| Feature | Value |
|---|---|
| Model | Symo 4.5-3-M |
| Product code | 4,210,033 |
| Manufacturer | Fronius |
| Series | Symo |
| Type | String inverter |
| Rated power | 4.5 kW |
| Power supply | Three-phase 400 V |
| MPPT trackers | 2 |
| Hybrid inverter | No, PV-only inverter |
| Dimensions (W x D x H) | 645 x 431 x 204 mm |
| Certifications | CEI 0-21, CEI 0-16 |
| Mounting | Wall mounted |