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MID 40KTL3-X vs MID 40KTL3-X2 20 of 24 identical Swap Change inverters

Growatt MID 40KTL3-X vs Growatt MID 40KTL3-X2

Growatt MID 40KTL3-X
Growatt
MID 40KTL3-X
40 kW 98.5 % euro Grid-tie
Open inverter page Datasheet PDF
VS
Growatt MID 40KTL3-X2
Growatt
MID 40KTL3-X2
40 kW Grid-tie
Open inverter page Datasheet PDF
The verdict

MID 40KTL3-X2 leads on the differences that matter

The largest is max input current per tracker: 6.0 A more headroom. 20 of 24 comparable parameters are identical, with 8 more left out because at least one datasheet does not publish them.

See all 4 differences
How alike are they
20 of 24 comparable
parameters are identical
identical differs not published
01

What actually differs

4 of 24 parameters
Parameter MID 40KTL3-X MID 40KTL3-X2 Difference
Max input current per tracker 26.0 A 32.0 A 6.0 A more headroom
Max AC power 44.00 kW 44.40 kW 0.40 kW apart
Weight 30.5 kg 37.0 kg 6.5 kg lighter
Max AC current 66.6 A 67.3 A 0.7 A apart
02

Full specification

Parameter MID 40KTL3-X MID 40KTL3-X2 Difference
AC output
Rated AC power 40.00 kW 40.00 kW Same
Max AC power 44.00 kW 44.40 kW 0.40 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 400 V Same
Max AC current 66.6 A 67.3 A 0.7 A apart
PV input
Max PV power 60.00 kW 60.00 kW Same
DC/AC ratio 1.50 1.50 Same
Max DC voltage 1100 V 1100 V Same
MPPT voltage range 200-1000 V 200-1000 V Same
Start voltage 250 V 250 V Same
MPP trackers - - Neither datasheet publishes this
Strings per tracker 2 2 Same
Max input current per tracker 26.0 A 32.0 A +6.0 A for MID 40KTL3-X2
Efficiency
European efficiency 98.5 % - Not published by Growatt
Max efficiency 98.8 % 98.8 % 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 30.5 kg 37.0 kg -6.5 kg for MID 40KTL3-X
Weight per kW 0.8 kg/kW 0.9 kg/kW Effectively the same
Dimensions 435x580x230 mm 435x580x230 mm Same
Ingress protection IP66 IP66 Same
Cooling forced-air forced-air Same
Noise - - Neither datasheet publishes this
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 5 yrs 5 yrs Same
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.