Skip to main content
SUN2000-20KTL-M2 vs SUN2000-20KTL-M3 7 of 19 identical Swap Change inverters

Huawei SUN2000-20KTL-M2 vs Huawei SUN2000-20KTL-M3

Huawei
SUN2000-20KTL-M2
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

12 differences, and they point both ways

The largest is max dc voltage: 330 V apart. 7 of 19 comparable parameters are identical, with 13 more left out because at least one datasheet does not publish them.

See all 12 differences
How alike are they
7 of 19 comparable
parameters are identical
identical differs not published
01

What actually differs

12 of 19 parameters
Parameter SUN2000-20KTL-M2 SUN2000-20KTL-M3 Difference
Max DC voltage 1080 V 750 V 330 V apart
Max input current per tracker 22.0 A 26.0 A 4.0 A more headroom
Max efficiency 98.7 % 97.6 % 1.1 pp more efficient
Max AC power 22.00 kW 20.00 kW 2.00 kW apart
MPP trackers 2 4 2 trackers more
Weight 25.0 kg 43.0 kg 18.0 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 33.5 A 57.2 A 23.7 A apart
Ingress protection IP65 IP66 IP65 vs IP66
MPPT voltage range 160-950 V 200-750 V 160-950 V vs 200-750 V
Dimensions 470x525x262 mm 530x681x270 mm 470x525x262 mm vs 530x681x270 mm
02

Full specification

Parameter SUN2000-20KTL-M2 SUN2000-20KTL-M3 Difference
AC output
Rated AC power 20.00 kW 20.00 kW Same
Max AC power 22.00 kW 20.00 kW 2.00 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 202 V 198 V apart
Max AC current 33.5 A 57.2 A 23.7 A apart
PV input
Max PV power 30.00 kW - Not published by Huawei
DC/AC ratio 1.50 - Not published by Huawei
Max DC voltage 1080 V 750 V 330 V apart
MPPT voltage range 160-950 V 200-750 V 160-950 V vs 200-750 V
Start voltage 200 V 200 V Same
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 98.7 % 97.6 % +1.1 pp for SUN2000-20KTL-M2
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 25.0 kg 43.0 kg -18.0 kg for SUN2000-20KTL-M2
Weight per kW 1.2 kg/kW 2.1 kg/kW -0.9 kg/kW for SUN2000-20KTL-M2
Dimensions 470x525x262 mm 530x681x270 mm 470x525x262 mm vs 530x681x270 mm
Ingress protection IP65 IP66 IP65 vs IP66
Cooling natural natural Same
Noise - 50 dB Not published by Huawei
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi Yes - Not published by Huawei
Ethernet Yes - Not published by Huawei
Arc fault protection Yes Yes Same
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
Huawei SUN2000-20KTL-M2 vs Growatt MID 20KTL3-X
8 differences, the largest is weight
Same type, similar size
Fronius International
Huawei SUN2000-20KTL-M2 vs Fronius Verto 20.0
12 differences, the largest is max dc voltage
Same type, similar size
Sungrow
Huawei SUN2000-20KTL-M2 vs Sungrow SG20KTL-M
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.