Solar inverters · Compare

Fronius Primo GEN24 4.0 Plus vs Huawei SUN2000-4KTL-M1

AC power: Fronius Primo GEN24 4.0 Plus 4 kW, Huawei SUN2000-4KTL-M1 4 kW. The Huawei SUN2000-4KTL-M1 is better on 3 of 12 comparable points.

Who wins where

  • Fronius Primo GEN24 4.0 Plus
  • Huawei SUN2000-4KTL-M1
PerformanceEfficiencyElectricalConnectivity & smartDimensions & weight
Performance: Fronius Primo GEN24 4.0 Plus 34, Huawei SUN2000-4KTL-M1 34; Efficiency: Fronius Primo GEN24 4.0 Plus 31, Huawei SUN2000-4KTL-M1 58; Electrical: Fronius Primo GEN24 4.0 Plus 36, Huawei SUN2000-4KTL-M1 49; Connectivity & smart: Fronius Primo GEN24 4.0 Plus 56, Huawei SUN2000-4KTL-M1 56; Dimensions & weight: Fronius Primo GEN24 4.0 Plus 79, Huawei SUN2000-4KTL-M1 64

Biggest differences

FactPrimo GEN24 4.0 PlusSUN2000-4KTL-M1
MPPT voltage max.530 V980 V
Max. input current per MPPT22 A13.5 A
MPPT voltage min.210 V140 V
Weight15.4 kg17 kg
All specifications ↓

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

Technical specifications FroniusPrimo GEN24 4.0 Plus HuaweiSUN2000-4KTL-M1
Performance
AC power 4 kW 1 4 kW 2
Max. PV array power 6 kWp 1 6 kWp 2
MPP trackers 2 1 2 2
Efficiency
Max. efficiency 97.6 % 1 98.3 % ✓ 2
European efficiency 97.1 % 1 97.1 % 2
Noise
Noise 42 dB(A) 1 –
Electrical
MPPT voltage min. 210 V 1 140 V ✓ 2
MPPT voltage max. 530 V 1 980 V ✓ 2
Max. input current per MPPT 22 A ✓ 1 13.5 A 2
Phases 1 1 3 2
Connectivity & smart
Hybrid (battery-ready) Yes 1 Yes 2
Backup power Yes 1 Yes 2
Wi-Fi / monitoring Yes 1 Yes 2
Dimensions & weight
IP rating IP66 1 IP65 2
Width 474 mm 1 525 mm 2
Height 530 mm 1 470 mm 2
Depth 165 mm 1 146.5 mm 2
Weight 15.4 kg ✓ 1 17 kg 2

Sources

  1. Fronius Primo GEN24 & GEN24 Plus 3.0 - 6.0 kW – datasheet, EN V04 (June 2025) — Fronius International GmbH · accessed 27 Sept 2026
  2. SUN2000-3/4/5/6/8/10KTL-M1 (High Current Version) – datasheet, 03-202403 — Huawei Digital Power Technologies Co., Ltd. · accessed 27 Sept 2026