Solar inverters · Compare

Fronius Symo 3.0-3-S vs Huawei SUN2000-3KTL-L1

AC power: Fronius Symo 3.0-3-S 3 kW, Huawei SUN2000-3KTL-L1 3 kW. The Huawei SUN2000-3KTL-L1 is better on 5 of 10 comparable points.

Who wins where

  • Fronius Symo 3.0-3-S
  • Huawei SUN2000-3KTL-L1
PerformanceEfficiencyElectricalConnectivity & smartDimensions & weight
Performance: Fronius Symo 3.0-3-S 14, Huawei SUN2000-3KTL-L1 24; Efficiency: Fronius Symo 3.0-3-S 27, Huawei SUN2000-3KTL-L1 66; Electrical: Fronius Symo 3.0-3-S 45, Huawei SUN2000-3KTL-L1 39; Connectivity & smart: Fronius Symo 3.0-3-S 50, Huawei SUN2000-3KTL-L1 50; Dimensions & weight: Fronius Symo 3.0-3-S 71, Huawei SUN2000-3KTL-L1 85

Biggest differences

FactSymo 3.0-3-SSUN2000-3KTL-L1
MPP trackers12
MPPT voltage min.150 V90 V
MPPT voltage max.800 V560 V
Max. PV array power6 kWp4.5 kWp
Weight16 kg12 kg
Max. input current per MPPT16 A12.5 A
All specifications ↓

Score per area = position (0–100) relative to all 238 models in this category; higher is better.

Technical specifications FroniusSymo 3.0-3-S HuaweiSUN2000-3KTL-L1
Performance
AC power 3 kW 1 3 kW 2
Max. PV array power 6 kWp ✓ 1 4.5 kWp 3
MPP trackers 1 1 2 ✓ 3
Efficiency
Max. efficiency 98 % 1 98.3 % ✓ 3
European efficiency 96.2 % 1 97.3 % ✓ 3
Electrical
MPPT voltage min. 150 V 1 90 V ✓ 3
MPPT voltage max. 800 V ✓ 1 560 V 3
Max. input current per MPPT 16 A ✓ 1 12.5 A 3
Phases 3 1 1 2
Connectivity & smart
Hybrid (battery-ready) – No 2
Backup power – Yes 3
Wi-Fi / monitoring Yes 1 Yes 3
Dimensions & weight
IP rating – IP65 3
Width 431 mm 1 365 mm 3
Height 645 mm 1 375 mm 3
Depth 204 mm 1 156 mm 3
Weight 16 kg 1 12 kg ✓ 3

Sources

  1. FRONIUS SYMO, M,06,0092,EN v27 Dec 2022 — Fronius · accessed 02 Oct 2026
  2. ENA Type Test Register (inverters) — Energy Networks Association (ENA) · accessed 27 Sept 2026
  3. SUN2000-2/3/3.68/4/4.6/5/6KTL-L1 – datasheet, 01-202509 — Huawei Digital Power Technologies Co., Ltd. · accessed 27 Sept 2026