Skip to main content
SUN2000-40KTL-NH vs SG40CX-P2 10 of 18 identical Swap Change inverters

Huawei SUN2000-40KTL-NH vs Sungrow SG40CX-P2

Huawei
SUN2000-40KTL-NH
40 kW Grid-tie
Open inverter page Datasheet PDF
VS
Sungrow SG40CX-P2
Sungrow
SG40CX-P2
40 kW 98.3 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

SG40CX-P2 leads on the differences that matter

The largest is max input current per tracker: 4.0 A more headroom. 10 of 18 comparable parameters are identical, with 14 more left out because at least one datasheet does not publish them.

See all 8 differences
How alike are they
10 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

8 of 18 parameters
Parameter SUN2000-40KTL-NH SG40CX-P2 Difference
Max input current per tracker 26.0 A 30.0 A 4.0 A more headroom
Max AC power 46.00 kW 44.00 kW 2.00 kW apart
Weight 43.0 kg 40.0 kg 3.0 kg lighter
Max efficiency 98.8 % 98.5 % 0.3 pp more efficient
Max AC current 52.5 A 66.9 A 14.4 A apart
MPPT voltage range 200-1000 V 160-1000 V 200-1000 V vs 160-1000 V
Dimensions 530x681x270 mm 575x645x245 mm 530x681x270 mm vs 575x645x245 mm
Cooling natural forced-air natural vs forced-air
02

Full specification

Parameter SUN2000-40KTL-NH SG40CX-P2 Difference
AC output
Rated AC power 40.00 kW 40.00 kW Same
Max AC power 46.00 kW 44.00 kW 2.00 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage - 400 V Not published by Huawei
Max AC current 52.5 A 66.9 A 14.4 A apart
PV input
Max PV power - 56.00 kW Not published by Huawei
DC/AC ratio - 1.40 Not published by Huawei
Max DC voltage 1100 V 1100 V Same
MPPT voltage range 200-1000 V 160-1000 V 200-1000 V vs 160-1000 V
Start voltage 200 V 200 V Same
MPP trackers 4 4 Same
Strings per tracker 2 2 Same
Max input current per tracker 26.0 A 30.0 A +4.0 A for SG40CX-P2
Efficiency
European efficiency - 98.3 % Not published by Huawei
Max efficiency 98.8 % 98.5 % +0.3 pp for SUN2000-40KTL-NH
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 40.0 kg -3.0 kg for SG40CX-P2
Weight per kW 1.1 kg/kW 1.0 kg/kW Effectively the same
Dimensions 530x681x270 mm 575x645x245 mm 530x681x270 mm vs 575x645x245 mm
Ingress protection IP66 IP66 Same
Cooling natural forced-air natural vs forced-air
Noise - - Neither datasheet publishes this
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 SUN2000-40KTL-NH vs Growatt MID 40KTL3-X
7 differences, the largest is max ac power
Same type, similar size
Huawei
Huawei SUN2000-40KTL-NH vs Huawei SUN2000-40KTL-M3
3 differences, the largest is max ac power
Same type, similar size
Ginlong Solis
Huawei SUN2000-40KTL-NH vs Solis-40K
6 differences, the largest is max ac power
Same type, similar size
Sungrow
Sungrow SG40CX-P2 vs Sungrow SG40CX
6 differences, the largest is max input current per tracker
04

Written summary

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