Skip to main content
SG20KTL-M vs SUN2000-20KTL-M3 5 of 18 identical Swap Change inverters

Sungrow SG20KTL-M vs Huawei SUN2000-20KTL-M3

Sungrow
SG20KTL-M
20 kW 98.3 % euro Grid-tie
Open inverter page Datasheet PDF
VS
Huawei SUN2000-20KTL-M3
Huawei
SUN2000-20KTL-M3
20 kW Grid-tie
Open inverter page Datasheet PDF
The verdict

13 differences, and they point both ways

The largest is max dc voltage: 350 V apart. 5 of 18 comparable parameters are identical, with 14 more left out because at least one datasheet does not publish them.

See all 13 differences
How alike are they
5 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

13 of 18 parameters
Parameter SG20KTL-M SUN2000-20KTL-M3 Difference
Max DC voltage 1100 V 750 V 350 V apart
Max input current per tracker 22.0 A 26.0 A 4.0 A more headroom
Max efficiency 98.6 % 97.6 % 1.0 pp more efficient
MPP trackers 2 4 2 trackers more
Weight 24.0 kg 43.0 kg 19.0 kg lighter
Weight per kW 1.2 kg/kW 2.1 kg/kW 0.9 kg/kW lighter
Nominal AC voltage 400 V 202 V 198 V apart
Max AC current 31.9 A 57.2 A 25.3 A apart
Start voltage 250 V 200 V 50 V earlier start
Ingress protection IP65 IP66 IP65 vs IP66
MPPT voltage range 200-1000 V 200-750 V 200-1000 V vs 200-750 V
Dimensions 485x370x210 mm 530x681x270 mm 485x370x210 mm vs 530x681x270 mm
Cooling forced-air natural forced-air vs natural
02

Full specification

Parameter SG20KTL-M SUN2000-20KTL-M3 Difference
AC output
Rated AC power 20.00 kW 20.00 kW Same
Max AC power 20.00 kW 20.00 kW Same
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 202 V 198 V apart
Max AC current 31.9 A 57.2 A 25.3 A apart
PV input
Max PV power - - Neither datasheet publishes this
DC/AC ratio - - Neither datasheet publishes this
Max DC voltage 1100 V 750 V 350 V apart
MPPT voltage range 200-1000 V 200-750 V 200-1000 V vs 200-750 V
Start voltage 250 V 200 V -50 V for SUN2000-20KTL-M3
MPP trackers 2 4 +2 trackers for SUN2000-20KTL-M3
Strings per tracker 2 2 Same
Max input current per tracker 22.0 A 26.0 A +4.0 A for SUN2000-20KTL-M3
Efficiency
European efficiency 98.3 % - Not published by Huawei
Max efficiency 98.6 % 97.6 % +1.0 pp for SG20KTL-M
CEC efficiency - - Neither datasheet publishes this
Battery
Battery input - - Neither datasheet publishes this
Battery voltage - - Neither datasheet publishes this
Max charge current - - Neither datasheet publishes this
Backup power - - Neither datasheet publishes this
Physical
Weight 24.0 kg 43.0 kg -19.0 kg for SG20KTL-M
Weight per kW 1.2 kg/kW 2.1 kg/kW -0.9 kg/kW for SG20KTL-M
Dimensions 485x370x210 mm 530x681x270 mm 485x370x210 mm vs 530x681x270 mm
Ingress protection IP65 IP66 IP65 vs IP66
Cooling forced-air natural forced-air vs natural
Noise - 50 dB Not published by Sungrow
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi - - Neither datasheet publishes this
Ethernet - - Neither datasheet publishes this
Arc fault protection - Yes Not published by Sungrow
Integrated DC switch Yes - Not published by Huawei
Warranty
Warranty - - Neither datasheet publishes this
03

More useful comparisons

Open all inverters
Same type, similar size
Growatt
Sungrow SG20KTL-M vs Growatt MID 20KTL3-X
4 differences, the largest is max ac power
Same type, similar size
Fronius International
Sungrow SG20KTL-M vs Fronius Verto 20.0
10 differences, the largest is max dc voltage
Same type, similar size
Huawei
Sungrow SG20KTL-M vs Huawei SUN2000-20KTL-M2
8 differences, the largest is max ac power
04

Written summary

Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate.