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

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

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
VS
Deye
SUN-40K-SG01HP3-EU-BM4
40 kW 97.0 % euro 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 WIT 40K-A-US L2 / WIT 40K-AU-US L2 SUN-40K-SG01HP3-EU-BM4 Difference
Weight 120.0 kg 80.0 kg 40.0 kg lighter
Weight per kW 3.0 kg/kW 2.0 kg/kW 1.0 kg/kW lighter
Max efficiency 98.0 % 97.6 % 0.4 pp more efficient
Max AC current 122.2 A 66.7 A 55.5 A apart
Ingress protection IP66/NEMA 4X IP65 IP66/NEMA 4X vs IP65
Battery voltage 380~450V 160-800 380~450V vs 160-800
Dimensions 820x1350x501 mm 894x527x294 mm 820x1350x501 mm vs 894x527x294 mm
02

Full specification

Parameter WIT 40K-A-US L2 / WIT 40K-AU-US L2 SUN-40K-SG01HP3-EU-BM4 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 122.2 A 66.7 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 98.0 % 97.6 % +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 380~450V 160-800 380~450V vs 160-800
Max charge current - 100 A Not published by Growatt
Backup power - - Neither datasheet publishes this
Physical
Weight 120.0 kg 80.0 kg -40.0 kg for SUN-40K-SG01HP3-EU-BM4
Weight per kW 3.0 kg/kW 2.0 kg/kW -1.0 kg/kW for SUN-40K-SG01HP3-EU-BM4
Dimensions 820x1350x501 mm 894x527x294 mm 820x1350x501 mm vs 894x527x294 mm
Ingress protection IP66/NEMA 4X IP65 IP66/NEMA 4X vs IP65
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

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15 differences, the largest is max dc voltage
04

Written summary

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