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SUN-40K-G-LV vs MID 40KTL3-X 9 of 23 identical Swap Change inverters

Deye SUN-40K-G-LV vs Growatt MID 40KTL3-X

Deye
SUN-40K-G-LV
40 kW 98.3 % 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

MID 40KTL3-X leads on the differences that matter

The largest is max dc voltage: 300 V apart. 9 of 23 comparable parameters are identical, with 9 more left out because at least one datasheet does not publish them.

See all 14 differences
How alike are they
9 of 23 comparable
parameters are identical
identical differs not published
01

What actually differs

14 of 23 parameters
Parameter SUN-40K-G-LV MID 40KTL3-X Difference
Max DC voltage 800 V 1100 V 300 V apart
Max input current per tracker 40.0 A 26.0 A 14.0 A more headroom
Max PV power 52.00 kW 60.00 kW 8.00 kW apart
Weight 60.0 kg 30.5 kg 29.5 kg lighter
DC/AC ratio 1.30 1.50 0.20 more oversizing headroom
Weight per kW 1.5 kg/kW 0.8 kg/kW 0.7 kg/kW lighter
European efficiency 98.3 % 98.5 % 0.2 pp more efficient
Nominal AC voltage 220 V 400 V 180 V apart
Max AC current 115.5 A 66.6 A 48.9 A apart
Max operating temperature 65 °C 60 °C 5 °C more heat tolerant
Ingress protection IP65 IP66 IP65 vs IP66
MPPT voltage range 200-700 V 200-1000 V 200-700 V vs 200-1000 V
Strings per tracker 1 2 1 string apart
Dimensions 575x700x297 mm 435x580x230 mm 575x700x297 mm vs 435x580x230 mm
02

Full specification

Parameter SUN-40K-G-LV MID 40KTL3-X Difference
AC output
Rated AC power 40.00 kW 40.00 kW Same
Max AC power 44.00 kW 44.00 kW Same
Grid connection 3-phase 3-phase Same
Nominal AC voltage 220 V 400 V 180 V apart
Max AC current 115.5 A 66.6 A 48.9 A apart
PV input
Max PV power 52.00 kW 60.00 kW 8.00 kW apart
DC/AC ratio 1.30 1.50 +0.20 for MID 40KTL3-X
Max DC voltage 800 V 1100 V 300 V apart
MPPT voltage range 200-700 V 200-1000 V 200-700 V vs 200-1000 V
Start voltage 250 V 250 V Same
MPP trackers 4 - Not published by Growatt
Strings per tracker 1 2 1 string apart
Max input current per tracker 40.0 A 26.0 A +14.0 A for SUN-40K-G-LV
Efficiency
European efficiency 98.3 % 98.5 % +0.2 pp for MID 40KTL3-X
Max efficiency 98.7 % 98.8 % 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 60.0 kg 30.5 kg -29.5 kg for MID 40KTL3-X
Weight per kW 1.5 kg/kW 0.8 kg/kW -0.7 kg/kW for MID 40KTL3-X
Dimensions 575x700x297 mm 435x580x230 mm 575x700x297 mm vs 435x580x230 mm
Ingress protection IP65 IP66 IP65 vs IP66
Cooling forced-air forced-air Same
Noise 55 dB - Not published by Growatt
Max operating temperature 65 °C 60 °C +5 °C for SUN-40K-G-LV
Connectivity and safety
Wi-Fi Yes Yes Same
Ethernet Yes Yes Same
Arc fault protection - Yes Not published by Deye
Integrated DC switch Yes Yes Same
Warranty
Warranty - 5 yrs Not published by Deye
03

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5 differences, the largest is weight
04

Written summary

Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate.