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SUN2000-40KTL-M3 vs SG40CX 12 of 19 identical Swap Change inverters

Huawei SUN2000-40KTL-M3 vs Sungrow SG40CX

Huawei SUN2000-40KTL-M3
Huawei
SUN2000-40KTL-M3
40 kW 98.4 % euro Grid-tie
Open inverter page Datasheet PDF
VS
Sungrow SG40CX
Sungrow
SG40CX
40 kW 98.3 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

SUN2000-40KTL-M3 leads on the differences that matter

The largest is max ac power: 4.00 kW apart. 12 of 19 comparable parameters are identical, with 13 more left out because at least one datasheet does not publish them.

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

What actually differs

7 of 19 parameters
Parameter SUN2000-40KTL-M3 SG40CX Difference
Max AC power 40.00 kW 44.00 kW 4.00 kW apart
Weight 43.0 kg 58.0 kg 15.0 kg lighter
Max AC current 63.8 A 66.9 A 3.1 A apart
Start voltage 200 V 250 V 50 V earlier start
Weight per kW 1.1 kg/kW 1.4 kg/kW 0.4 kg/kW lighter
Dimensions 530x640x270 mm 645x782x310 mm 530x640x270 mm vs 645x782x310 mm
Cooling natural forced-air natural vs forced-air
02

Full specification

Parameter SUN2000-40KTL-M3 SG40CX Difference
AC output
Rated AC power 40.00 kW 40.00 kW Same
Max AC power 40.00 kW 44.00 kW 4.00 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 400 V Same
Max AC current 63.8 A 66.9 A 3.1 A apart
PV input
Max PV power - - Neither datasheet publishes this
DC/AC ratio - - Neither datasheet publishes this
Max DC voltage 1100 V 1100 V Same
MPPT voltage range 200-1000 V 200-1000 V Same
Start voltage 200 V 250 V -50 V for SUN2000-40KTL-M3
MPP trackers 4 - Not published by Sungrow
Strings per tracker 2 2 Same
Max input current per tracker 26.0 A 26.0 A Same
Efficiency
European efficiency 98.4 % 98.3 % Effectively the same
Max efficiency 98.7 % 98.6 % Effectively the same
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 58.0 kg -15.0 kg for SUN2000-40KTL-M3
Weight per kW 1.1 kg/kW 1.4 kg/kW -0.4 kg/kW for SUN2000-40KTL-M3
Dimensions 530x640x270 mm 645x782x310 mm 530x640x270 mm vs 645x782x310 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 Sungrow
Ethernet - - Neither datasheet publishes this
Arc fault protection Yes - Not published by Sungrow
Integrated DC switch Yes Yes Same
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.