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SUN-40K-SG01HP3-EU-BM4 vs WIT 40K-A-US L2 / WIT 40K-AU-US L2 5 of 12 identical Swap Change inverters

Deye SUN-40K-SG01HP3-EU-BM4 vs Growatt WIT 40K-A-US L2 / WIT 40K-AU-US L2

Deye
SUN-40K-SG01HP3-EU-BM4
40 kW 97.0 % euro Hybrid
Open inverter page Datasheet PDF
VS
Growatt WIT 40K-A-US L2 / WIT 40K-AU-US L2
Growatt
WIT 40K-A-US L2 / WIT 40K-AU-US L2
40 kW Hybrid
Open inverter page Datasheet PDF
The verdict

SUN-40K-SG01HP3-EU-BM4 leads on the differences that matter

The largest is weight: 40.0 kg lighter. 5 of 12 comparable parameters are identical, with 20 more left out because at least one datasheet does not publish them.

See all 7 differences
How alike are they
5 of 12 comparable
parameters are identical
identical differs not published
01

What actually differs

7 of 12 parameters
Parameter SUN-40K-SG01HP3-EU-BM4 WIT 40K-A-US L2 / WIT 40K-AU-US L2 Difference
Weight 80.0 kg 120.0 kg 40.0 kg lighter
Weight per kW 2.0 kg/kW 3.0 kg/kW 1.0 kg/kW lighter
Max efficiency 97.6 % 98.0 % 0.4 pp more efficient
Max AC current 66.7 A 122.2 A 55.5 A apart
Ingress protection IP65 IP66/NEMA 4X IP65 vs IP66/NEMA 4X
Battery voltage 160-800 380~450V 160-800 vs 380~450V
Dimensions 894x527x294 mm 820x1350x501 mm 894x527x294 mm vs 820x1350x501 mm
02

Full specification

Parameter SUN-40K-SG01HP3-EU-BM4 WIT 40K-A-US L2 / WIT 40K-AU-US L2 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 400 V - Not published by Growatt
Max AC current 66.7 A 122.2 A 55.5 A apart
PV input
Max PV power 52.00 kW - Not published by Growatt
DC/AC ratio 1.30 - Not published by Growatt
Max DC voltage 1000 V - Not published by Growatt
MPPT voltage range 150-850 V - Not published by Growatt
Start voltage 180 V - Not published by Growatt
MPP trackers - - Neither datasheet publishes this
Strings per tracker 2 - Not published by Growatt
Max input current per tracker 36.0 A - Not published by Growatt
Efficiency
European efficiency 97.0 % - Not published by Growatt
Max efficiency 97.6 % 98.0 % +0.4 pp for WIT 40K-A-US L2 / WIT 40K-AU-US L2
CEC efficiency - - Neither datasheet publishes this
Battery
Battery input Yes Yes Same
Battery voltage 160-800 380~450V 160-800 vs 380~450V
Max charge current 100 A - Not published by Growatt
Backup power - - Neither datasheet publishes this
Physical
Weight 80.0 kg 120.0 kg -40.0 kg for SUN-40K-SG01HP3-EU-BM4
Weight per kW 2.0 kg/kW 3.0 kg/kW -1.0 kg/kW for SUN-40K-SG01HP3-EU-BM4
Dimensions 894x527x294 mm 820x1350x501 mm 894x527x294 mm vs 820x1350x501 mm
Ingress protection IP65 IP66/NEMA 4X IP65 vs IP66/NEMA 4X
Cooling forced-air - Not published by Growatt
Noise 65 dB - Not published by Growatt
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi - - Neither datasheet publishes this
Ethernet - - Neither datasheet publishes this
Arc fault protection - - Neither datasheet publishes this
Integrated DC switch - - Neither datasheet publishes this
Warranty
Warranty 5 yrs - Not published by Growatt
03

More useful comparisons

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Same type, similar size
GoodWe
Deye SUN-40K-SG01HP3-EU-BM4 vs GoodWe GW40K-ET-10
13 differences, the largest is european efficiency
Same type, similar size
Ginlong Solis
Deye SUN-40K-SG01HP3-EU-BM4 vs Ginlong Solis S6-EH3P40K-H
12 differences, the largest is max input current per tracker
Same type, similar size
Growatt
Deye SUN-40K-SG01HP3-EU-BM4 vs Growatt MID 40K-HU
15 differences, the largest is max input current per tracker
04

Written summary

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