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

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

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

Full specification

Parameter SE66.6K (for 220V/230V line-to-line grids) SUN2000-40KTL-M3 Difference
AC output
Rated AC power 38.45 kW 40.00 kW 1.55 kW apart
Max AC power 38.45 kW 40.00 kW 1.55 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 230 V 400 V 170 V apart
Max AC current 96.5 A 63.8 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 600 V 1100 V 500 V apart
MPPT voltage range 370-600 V 200-1000 V 370-600 V vs 200-1000 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 98.0 % 98.4 % +0.4 pp for SUN2000-40KTL-M3
Max efficiency 98.3 % 98.7 % +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 IP65 IP66 IP65 vs IP66
Cooling forced-air natural forced-air vs natural
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

More useful comparisons

Open all inverters
Same type, similar size
Growatt
SolarEdge SE66.6K (for 220V/230V line-to-line grids) vs Growatt MID 40KTL3-X
11 differences, the largest is rated ac power
Same type, similar size
Ginlong Solis
SolarEdge SE66.6K (for 220V/230V line-to-line grids) vs Solis-40K
10 differences, the largest is rated ac power
Same type, similar size
Sungrow
SolarEdge SE66.6K (for 220V/230V line-to-line grids) vs Sungrow SG40CX-P2
11 differences, the largest is rated ac power
Same type, similar size
Sungrow
Huawei SUN2000-40KTL-M3 vs Sungrow SG40CX
7 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.