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FoxESS T3-G3 vs SolaX X1-MINI-3.0K-G4

AC power: FoxESS T3-G3 3 kW, SolaX X1-MINI-3.0K-G4 3 kW. Both models win equally often (4 of 9 points).

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Who wins where

  • FoxESS T3-G3
  • SolaX X1-MINI-3.0K-G4
PerformanceEfficiencyElectricalDimensions & weight

Biggest differences

FactT3-G3X1-MINI-3.0K-G4
MPPT voltage min.140 V40 V
Weight17 kg5.5 kg
MPP trackers21
MPPT voltage max.1,000 V550 V
Max. PV array power4.5 kWp6 kWp
Max. input current per MPPT14 A16 A
All specifications ↓

Score per area = position (0–100) relative to all 263 models in this category; higher is better.

FoxESST3-G3SolaXX1-MINI-3.0K-G4
Performance
AC power3 kW13 kW2
Max. PV array power4.5 kWp16 kWp✓3
MPP trackers2✓113
Efficiency
Max. efficiency98.6 %✓198 %3
European efficiency97.8 %✓197 %3
Electrical
MPPT voltage min.140 V140 V✓3
MPPT voltage max.1,000 V✓1550 V3
Max. input current per MPPT14 A116 A✓3
Phases3112
Connectivity & smart
Hybrid (battery-ready)–No2
Dimensions & weight
IP ratingIP651IP663
Width370 mm1290 mm3
Height480 mm1206 mm3
Depth183.5 mm1120 mm3
Weight17 kg15.5 kg✓3

Frequently asked questions

Which is better: the FoxESS T3-G3 or the SolaX X1-MINI-3.0K-G4?

AC power: FoxESS T3-G3 3 kW, SolaX X1-MINI-3.0K-G4 3 kW. Both models win equally often (4 of 9 points).

What is the AC power of the FoxESS T3-G3 and the SolaX X1-MINI-3.0K-G4?

FoxESS T3-G3: 3 kW. SolaX X1-MINI-3.0K-G4: 3 kW.

Which is better on MPPT voltage min.: the FoxESS T3-G3 or the SolaX X1-MINI-3.0K-G4?

SolaX X1-MINI-3.0K-G4: 40 V. FoxESS T3-G3: 140 V.

Which is better on weight: the FoxESS T3-G3 or the SolaX X1-MINI-3.0K-G4?

SolaX X1-MINI-3.0K-G4: 5.5 kg. FoxESS T3-G3: 17 kg.

How we collect and check this data →

Sources

  1. T SERIES(G3) THREE-PHASE INVERTER, V2.5 | 2026/07/03 — Fox ESS · accessed Sep 29, 2026
  2. ENA Type Test Register (inverters) — Energy Networks Association (ENA) · accessed Sep 27, 2026
  3. X1-MINI G4, V1.7 — SolaX · accessed Oct 17, 2026