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SUN2000-40KTL-M3 vs SE66.6K (for 220V/230V line-to-line grids) 5 of 15 identical Swap Change inverters

Huawei SUN2000-40KTL-M3 vs SolarEdge SE66.6K (for 220V/230V line-to-line grids)

Huawei SUN2000-40KTL-M3
Huawei
SUN2000-40KTL-M3
40 kW 98.4 % euro Grid-tie
Open inverter page Datasheet PDF
VS
SolarEdge SE66.6K (for 220V/230V line-to-line grids)
SolarEdge
SE66.6K (for 220V/230V line-to-line grids)
38.45 kW 98.0 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

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

The largest is rated ac power: 1.55 kW apart. 5 of 15 comparable parameters are identical, with 17 more left out because at least one datasheet does not publish them.

See all 10 differences
How alike are they
5 of 15 comparable
parameters are identical
identical differs not published
01

What actually differs

10 of 15 parameters
Parameter SUN2000-40KTL-M3 SE66.6K (for 220V/230V line-to-line grids) Difference
Rated AC power 40.00 kW 38.45 kW 1.55 kW apart
Max DC voltage 1100 V 600 V 500 V apart
European efficiency 98.4 % 98.0 % 0.4 pp more efficient
Max AC power 40.00 kW 38.45 kW 1.55 kW apart
Max efficiency 98.7 % 98.3 % 0.4 pp more efficient
Nominal AC voltage 400 V 230 V 170 V apart
Max AC current 63.8 A 96.5 A 32.7 A apart
Ingress protection IP66 IP65 IP66 vs IP65
MPPT voltage range 200-1000 V 370-600 V 200-1000 V vs 370-600 V
Cooling natural forced-air natural vs forced-air
02

Full specification

Parameter SUN2000-40KTL-M3 SE66.6K (for 220V/230V line-to-line grids) Difference
AC output
Rated AC power 40.00 kW 38.45 kW 1.55 kW apart
Max AC power 40.00 kW 38.45 kW 1.55 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 230 V 170 V apart
Max AC current 63.8 A 96.5 A 32.7 A apart
PV input
Max PV power - 67.28 kW Not published by Huawei
DC/AC ratio - 1.75 Not published by Huawei
Max DC voltage 1100 V 600 V 500 V apart
MPPT voltage range 200-1000 V 370-600 V 200-1000 V vs 370-600 V
Start voltage 200 V - Not published by SolarEdge
MPP trackers 4 - Not published by SolarEdge
Strings per tracker 2 - Not published by SolarEdge
Max input current per tracker 26.0 A - Not published by SolarEdge
Efficiency
European efficiency 98.4 % 98.0 % +0.4 pp for SUN2000-40KTL-M3
Max efficiency 98.7 % 98.3 % +0.4 pp for SUN2000-40KTL-M3
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 - Not published by SolarEdge
Weight per kW 1.1 kg/kW - Not published by SolarEdge
Dimensions 530x640x270 mm - Not published by SolarEdge
Ingress protection IP66 IP65 IP66 vs IP65
Cooling natural forced-air natural vs forced-air
Noise - 67 dB Not published by Huawei
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi Yes Yes Same
Ethernet - Yes Not published by Huawei
Arc fault protection Yes Yes Same
Integrated DC switch Yes Yes Same
Warranty
Warranty - - Neither datasheet publishes this
03

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Huawei SUN2000-40KTL-M3 vs Solis-40K
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Huawei SUN2000-40KTL-M3 vs Sungrow SG40CX-P2
8 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.