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SUN2000-20KTL-M3 vs SG20KTL-M 5 of 18 identical Swap Change inverters

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

Huawei SUN2000-20KTL-M3
Huawei
SUN2000-20KTL-M3
20 kW Grid-tie
Open inverter page Datasheet PDF
VS
Sungrow
SG20KTL-M
20 kW 98.3 % euro 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 SUN2000-20KTL-M3 SG20KTL-M Difference
Max DC voltage 750 V 1100 V 350 V apart
Max input current per tracker 26.0 A 22.0 A 4.0 A more headroom
Max efficiency 97.6 % 98.6 % 1.0 pp more efficient
MPP trackers 4 2 2 trackers more
Weight 43.0 kg 24.0 kg 19.0 kg lighter
Weight per kW 2.1 kg/kW 1.2 kg/kW 0.9 kg/kW lighter
Nominal AC voltage 202 V 400 V 198 V apart
Max AC current 57.2 A 31.9 A 25.3 A apart
Start voltage 200 V 250 V 50 V earlier start
Ingress protection IP66 IP65 IP66 vs IP65
MPPT voltage range 200-750 V 200-1000 V 200-750 V vs 200-1000 V
Dimensions 530x681x270 mm 485x370x210 mm 530x681x270 mm vs 485x370x210 mm
Cooling natural forced-air natural vs forced-air
02

Full specification

Parameter SUN2000-20KTL-M3 SG20KTL-M 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 202 V 400 V 198 V apart
Max AC current 57.2 A 31.9 A 25.3 A apart
PV input
Max PV power - - Neither datasheet publishes this
DC/AC ratio - - Neither datasheet publishes this
Max DC voltage 750 V 1100 V 350 V apart
MPPT voltage range 200-750 V 200-1000 V 200-750 V vs 200-1000 V
Start voltage 200 V 250 V -50 V for SUN2000-20KTL-M3
MPP trackers 4 2 +2 trackers for SUN2000-20KTL-M3
Strings per tracker 2 2 Same
Max input current per tracker 26.0 A 22.0 A +4.0 A for SUN2000-20KTL-M3
Efficiency
European efficiency - 98.3 % Not published by Huawei
Max efficiency 97.6 % 98.6 % +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 43.0 kg 24.0 kg -19.0 kg for SG20KTL-M
Weight per kW 2.1 kg/kW 1.2 kg/kW -0.9 kg/kW for SG20KTL-M
Dimensions 530x681x270 mm 485x370x210 mm 530x681x270 mm vs 485x370x210 mm
Ingress protection IP66 IP65 IP66 vs IP65
Cooling natural forced-air natural vs forced-air
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

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04

Written summary

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