Solar inverters · IE

FroniusSymo 4.5-3-S

Fronius Symo 4.5-3-S
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The Fronius Symo 4.5-3-S is a solar inverter with AC power 4.5 kW, MPP trackers 1 and european efficiency 97 %.1

Last updated: Technical specifications ⇄ Compare this model

Key figures

AC power
4.5kW1
MPP trackers
11
Manufacturer data
European efficiency
97%1
Manufacturer data
Max. PV array power
9kWp1
Manufacturer data
MPPT voltage min.
150V1
Manufacturer data

Technical specifications

Performance
AC power 4.5 kW1
Max. PV array power 9 kWp1
MPP trackers 11
Efficiency
Max. efficiency 98 %1
European efficiency 97 %1
Electrical
MPPT voltage min. 150 V1
MPPT voltage max. 800 V1
Max. input current per MPPT 16 A1
Phases 31
Connectivity & smart
Wi-Fi / monitoring Yes1
Dimensions & weight
Width 431 mm1
Height 645 mm1
Depth 204 mm1
Weight 16 kg1

Manufacturer documentation

External links to Fronius's official website. The manufacturer may change or move documents; where they differ, the manufacturer's latest version applies.

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Frequently asked questions

What is the AC power of the Fronius Symo 4.5-3-S?

The AC power of the Fronius Symo 4.5-3-S is 4.5 kW.1

What is the MPP trackers of the Fronius Symo 4.5-3-S?

The MPP trackers of the Fronius Symo 4.5-3-S is 1.1

What is the european efficiency of the Fronius Symo 4.5-3-S?

The european efficiency of the Fronius Symo 4.5-3-S is 97 %.1

What is the max. PV array power of the Fronius Symo 4.5-3-S?

The max. PV array power of the Fronius Symo 4.5-3-S is 9 kWp.1

Sources

  1. FRONIUS SYMO, M,06,0092,EN v27 Dec 2022 — Fronius · accessed 2 Oct 2026