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SE40K vs MID 40KTL3-X 10 of 22 identical Swap Change inverters

SolarEdge SE40K vs Growatt MID 40KTL3-X

SolarEdge SE40K
SolarEdge
SE40K
40 kW 98.0 % euro Grid-tie
Open inverter page Datasheet PDF
VS
Growatt MID 40KTL3-X
Growatt
MID 40KTL3-X
40 kW 98.5 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

12 differences, and they point both ways

The largest is warranty: 15 yrs longer. 10 of 22 comparable parameters are identical, with 10 more left out because at least one datasheet does not publish them.

See all 12 differences
How alike are they
10 of 22 comparable
parameters are identical
identical differs not published
01

What actually differs

12 of 22 parameters
Parameter SE40K MID 40KTL3-X Difference
Warranty 20 yrs 5 yrs 15 yrs longer
European efficiency 98.0 % 98.5 % 0.5 pp more efficient
Max DC voltage 1000 V 1100 V 100 V apart
Max efficiency 98.1 % 98.8 % 0.7 pp more efficient
Max AC power 40.00 kW 44.00 kW 4.00 kW apart
Max PV power 70.00 kW 60.00 kW 10.00 kW apart
DC/AC ratio 1.75 1.50 0.25 more oversizing headroom
Weight 32.0 kg 30.5 kg 1.5 kg lighter
Max AC current 48.2 A 66.6 A 18.3 A apart
Ingress protection IP65 IP66 IP65 vs IP66
MPPT voltage range 680-1000 V 200-1000 V 680-1000 V vs 200-1000 V
Dimensions 558x328x273 mm 435x580x230 mm 558x328x273 mm vs 435x580x230 mm
02

Full specification

Parameter SE40K MID 40KTL3-X 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 48.2 A 66.6 A 18.3 A apart
PV input
Max PV power 70.00 kW 60.00 kW 10.00 kW apart
DC/AC ratio 1.75 1.50 +0.25 for SE40K
Max DC voltage 1000 V 1100 V 100 V apart
MPPT voltage range 680-1000 V 200-1000 V 680-1000 V vs 200-1000 V
Start voltage - 250 V Not published by SolarEdge
MPP trackers - - Neither datasheet publishes this
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 % 98.5 % +0.5 pp for MID 40KTL3-X
Max efficiency 98.1 % 98.8 % +0.7 pp for MID 40KTL3-X
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 32.0 kg 30.5 kg -1.5 kg for MID 40KTL3-X
Weight per kW 0.8 kg/kW 0.8 kg/kW Same
Dimensions 558x328x273 mm 435x580x230 mm 558x328x273 mm vs 435x580x230 mm
Ingress protection IP65 IP66 IP65 vs IP66
Cooling forced-air forced-air Same
Noise 62 dB - Not published by Growatt
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi Yes Yes Same
Ethernet Yes Yes Same
Arc fault protection Yes Yes Same
Integrated DC switch Yes Yes Same
Warranty
Warranty 20 yrs 5 yrs +15 yrs for SE40K
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.