Skip to main content
SUN-40K-G03 vs SUN2000-40KTL-M3 9 of 20 identical Swap Change inverters

Deye SUN-40K-G03 vs Huawei SUN2000-40KTL-M3

Deye SUN-40K-G03
Deye
SUN-40K-G03
40 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

11 differences, and they point both ways

The largest is max dc voltage: 100 V apart. 9 of 20 comparable parameters are identical, with 12 more left out because at least one datasheet does not publish them.

See all 11 differences
How alike are they
9 of 20 comparable
parameters are identical
identical differs not published
01

What actually differs

11 of 20 parameters
Parameter SUN-40K-G03 SUN2000-40KTL-M3 Difference
Max DC voltage 1000 V 1100 V 100 V apart
Max input current per tracker 40.0 A 26.0 A 14.0 A more headroom
European efficiency 98.0 % 98.4 % 0.4 pp more efficient
Max AC power 44.00 kW 40.00 kW 4.00 kW apart
Weight 44.5 kg 43.0 kg 1.5 kg lighter
Start voltage 250 V 200 V 50 V earlier start
Max operating temperature 65 °C 60 °C 5 °C more heat tolerant
Ingress protection IP65 IP66 IP65 vs IP66
MPPT voltage range 200-850 V 200-1000 V 200-850 V vs 200-1000 V
Dimensions 537x648x304 mm 530x640x270 mm 537x648x304 mm vs 530x640x270 mm
Cooling forced-air natural forced-air vs natural
02

Full specification

Parameter SUN-40K-G03 SUN2000-40KTL-M3 Difference
AC output
Rated AC power 40.00 kW 40.00 kW Same
Max AC power 44.00 kW 40.00 kW 4.00 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 400 V Same
Max AC current 63.8 A 63.8 A Same
PV input
Max PV power 52.00 kW - Not published by Huawei
DC/AC ratio 1.30 - Not published by Huawei
Max DC voltage 1000 V 1100 V 100 V apart
MPPT voltage range 200-850 V 200-1000 V 200-850 V vs 200-1000 V
Start voltage 250 V 200 V -50 V for SUN2000-40KTL-M3
MPP trackers 4 4 Same
Strings per tracker - 2 Not published by Deye
Max input current per tracker 40.0 A 26.0 A +14.0 A for SUN-40K-G03
Efficiency
European efficiency 98.0 % 98.4 % +0.4 pp for SUN2000-40KTL-M3
Max efficiency 98.7 % 98.7 % 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 44.5 kg 43.0 kg -1.5 kg for SUN2000-40KTL-M3
Weight per kW 1.1 kg/kW 1.1 kg/kW Same
Dimensions 537x648x304 mm 530x640x270 mm 537x648x304 mm vs 530x640x270 mm
Ingress protection IP65 IP66 IP65 vs IP66
Cooling forced-air natural forced-air vs natural
Noise 45 dB - Not published by Huawei
Max operating temperature 65 °C 60 °C +5 °C for SUN-40K-G03
Connectivity and safety
Wi-Fi Yes Yes Same
Ethernet Yes - Not published by Huawei
Arc fault protection - Yes Not published by Deye
Integrated DC switch Yes Yes Same
Warranty
Warranty - - Neither datasheet publishes this
03

More useful comparisons

Open all inverters
Same type, similar size
Growatt
Deye SUN-40K-G03 vs Growatt MID 40KTL3-X
12 differences, the largest is european efficiency
Same type, similar size
Ginlong Solis
Deye SUN-40K-G03 vs Solis-40K
11 differences, the largest is max dc voltage
Same type, similar size
Sungrow
Deye SUN-40K-G03 vs Sungrow SG40CX-P2
13 differences, the largest is max dc voltage
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.