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HU-US vs AU-US 14 of 16 identical Swap Change inverters

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

Growatt WIT 75K-HU-US
Growatt
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

AU-US leads on the differences that matter

The largest is warranty: 5 yrs longer. 14 of 16 comparable parameters are identical, with 16 more left out because at least one datasheet does not publish them.

See all 2 differences
How alike are they
14 of 16 comparable
parameters are identical
identical differs not published
01

What actually differs

2 of 16 parameters
Parameter HU-US AU-US Difference
Warranty 5 yrs 10 yrs 5 yrs longer
Weight 153.0 kg 140.0 kg 13.0 kg lighter
02

Full specification

Parameter HU-US AU-US Difference
AC output
Rated AC power 75.00 kW 75.00 kW Same
Max AC power 82.50 kW 82.50 kW Same
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 156.00 kW - Not published by Growatt
DC/AC ratio 2.08 - 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 - - Neither datasheet publishes this
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 98.2 % 98.2 % Same
CEC efficiency - - Neither datasheet publishes this
Battery
Battery input Yes Yes Same
Battery voltage 750-1000V for 3P3W / 820-1000V for 3P4W 750-1000V for 3P3W / 820-1000V for 3P4W Same
Max charge current - 151 A Not published by Growatt
Backup power - - Neither datasheet publishes this
Physical
Weight 153.0 kg 140.0 kg -13.0 kg for AU-US
Weight per kW 2.0 kg/kW 1.9 kg/kW Effectively the same
Dimensions 1350x850x510 mm 1350x850x510 mm Same
Ingress protection IP66/NEMA 4X IP66/NEMA 4X Same
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 - - Neither datasheet publishes this
Integrated DC switch - - Neither datasheet publishes this
Warranty
Warranty 5 yrs 10 yrs +5 yrs for AU-US
03

More useful comparisons

Open all inverters
Same type, similar size
Growatt
Growatt WIT 75K-HU-US vs Growatt WIT 75K-A-US / WIT 75K-AU-US
6 differences, the largest is max ac power
Same type, similar size
Growatt
Growatt WIT 75K-HU-US vs Growatt WIT 75K-H-US / WIT 75K-HU-US
9 differences, the largest is warranty
Same type, similar size
Growatt
Growatt WIT 75K-HU-US vs Growatt WIT 75K-A
10 differences, the largest is max dc voltage
Same type, similar size
Growatt
Growatt WIT 75K-AU-US vs Growatt WIT 75K-AU
8 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.