Solar inverters · Compare

Fronius Primo 3.0-1 vs Huawei SUN2000-3KTL-L1

AC power: Fronius Primo 3.0-1 3 kW, Huawei SUN2000-3KTL-L1 3 kW. The Huawei SUN2000-3KTL-L1 is better on 4 of 10 comparable points.

Who wins where

  • Fronius Primo 3.0-1
  • Huawei SUN2000-3KTL-L1
PerformanceEfficiencyElectricalConnectivity & smartDimensions & weight
Performance: Fronius Primo 3.0-1 31, Huawei SUN2000-3KTL-L1 31; Efficiency: Fronius Primo 3.0-1 27, Huawei SUN2000-3KTL-L1 66; Electrical: Fronius Primo 3.0-1 44, Huawei SUN2000-3KTL-L1 39; Connectivity & smart: Fronius Primo 3.0-1 36, Huawei SUN2000-3KTL-L1 36; Dimensions & weight: Fronius Primo 3.0-1 39, Huawei SUN2000-3KTL-L1 85

Biggest differences

FactPrimo 3.0-1SUN2000-3KTL-L1
Weight21.5 kg12 kg
MPPT voltage max.800 V560 V
MPPT voltage min.80 V90 V
Max. input current per MPPT12 A12.5 A
All specifications ↓

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

Technical specifications FroniusPrimo 3.0-1 HuaweiSUN2000-3KTL-L1
Performance
AC power 3 kW 1 3 kW 1
Max. PV array power – 4.5 kWp 2
MPP trackers 2 3 2 2
Efficiency
Max. efficiency 98 % 3 98.3 % ✓ 2
European efficiency 96.1 % 3 97.3 % ✓ 2
Electrical
MPPT voltage min. 80 V ✓ 3 90 V 2
MPPT voltage max. 800 V ✓ 3 560 V 2
Max. input current per MPPT 12 A 3 12.5 A ✓ 2
Phases 1 1 1 1
Connectivity & smart
Hybrid (battery-ready) No 1 No 1
Backup power – Yes 2
Wi-Fi / monitoring Yes 3 Yes 2
Dimensions & weight
IP rating – IP65 2
Width 431 mm 3 365 mm 2
Height 645 mm 3 375 mm 2
Depth 204 mm 3 156 mm 2
Weight 21.5 kg 3 12 kg ✓ 2

Sources

  1. ENA Type Test Register (inverters) — Energy Networks Association (ENA) · accessed 27 Sept 2026
  2. SUN2000-2/3/3.68/4/4.6/5/6KTL-L1 – datasheet, 01-202509 — Huawei Digital Power Technologies Co., Ltd. · accessed 27 Sept 2026
  3. FRONIUS PRIMO, v19 Dec 2022 — Fronius · accessed 02 Oct 2026