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H-US / WIT 75K-HU-US vs AU-US 10 of 17 identical Swap Change inverters

Growatt WIT 75K-H-US / WIT 75K-HU-US vs Growatt WIT 75K-AU-US

Growatt WIT 75K-H-US / WIT 75K-HU-US
Growatt
WIT 75K-H-US / WIT 75K-HU-US
75 kW Hybrid
Open inverter page Datasheet PDF
VS
Growatt WIT 75K-AU-US
Growatt
WIT 75K-AU-US
75 kW Hybrid
Open inverter page Datasheet PDF
The verdict

H-US / WIT 75K-HU-US leads on the differences that matter

The largest is max ac power: 7.50 kW apart. 10 of 17 comparable parameters are identical, with 15 more left out because at least one datasheet does not publish them.

See all 7 differences
How alike are they
10 of 17 comparable
parameters are identical
identical differs not published
01

What actually differs

7 of 17 parameters
Parameter H-US / WIT 75K-HU-US AU-US Difference
Max AC power 75.00 kW 82.50 kW 7.50 kW apart
Weight 60.0 kg 140.0 kg 80.0 kg lighter
Weight per kW 0.8 kg/kW 1.9 kg/kW 1.1 kg/kW lighter
Max efficiency 98.0 % 98.2 % 0.2 pp more efficient
Ingress protection NEMA 4X (IP66) IP66/NEMA 4X NEMA 4X (IP66) vs IP66/NEMA 4X
Battery voltage 750-1000V 750-1000V for 3P3W / 820-1000V for 3P4W 750-1000V vs 750-1000V for 3P3W / 820-1000V for 3P4W
Dimensions 820x760x228 mm 1350x850x510 mm 820x760x228 mm vs 1350x850x510 mm
02

Full specification

Parameter H-US / WIT 75K-HU-US AU-US Difference
AC output
Rated AC power 75.00 kW 75.00 kW Same
Max AC power 75.00 kW 82.50 kW 7.50 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 480 V 480 V Same
Max AC current 99.3 A 99.3 A Same
PV input
Max PV power 156.60 kW - Not published by Growatt
DC/AC ratio 2.09 - Not published by Growatt
Max DC voltage 1100 V - Not published by Growatt
MPPT voltage range 180-800 V - Not published by Growatt
Start voltage 195 V - Not published by Growatt
MPP trackers 10 - Not published by Growatt
Strings per tracker 2 - Not published by Growatt
Max input current per tracker 32.0 A - Not published by Growatt
Efficiency
European efficiency - - Neither datasheet publishes this
Max efficiency 98.0 % 98.2 % +0.2 pp for AU-US
CEC efficiency - - Neither datasheet publishes this
Battery
Battery input Yes Yes Same
Battery voltage 750-1000V 750-1000V for 3P3W / 820-1000V for 3P4W 750-1000V vs 750-1000V for 3P3W / 820-1000V for 3P4W
Max charge current 151 A 151 A Same
Backup power 100.0 kW - Not published by Growatt
Physical
Weight 60.0 kg 140.0 kg -80.0 kg for H-US / WIT 75K-HU-US
Weight per kW 0.8 kg/kW 1.9 kg/kW -1.1 kg/kW for H-US / WIT 75K-HU-US
Dimensions 820x760x228 mm 1350x850x510 mm 820x760x228 mm vs 1350x850x510 mm
Ingress protection NEMA 4X (IP66) IP66/NEMA 4X NEMA 4X (IP66) vs IP66/NEMA 4X
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 Not published by Growatt
Arc fault protection Yes - Not published by Growatt
Integrated DC switch - - Neither datasheet publishes this
Warranty
Warranty 10 yrs 10 yrs Same
03

More useful comparisons

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Growatt
Growatt WIT 75K-H-US / WIT 75K-HU-US vs Growatt WIT 75K-A-US / WIT 75K-AU-US
6 differences, the largest is warranty
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Growatt
Growatt WIT 75K-H-US / WIT 75K-HU-US vs Growatt WIT 75K-A
9 differences, the largest is max dc voltage
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Growatt
Growatt WIT 75K-H-US / WIT 75K-HU-US vs Growatt WIT 75K-AU
9 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.