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AU-US vs H / WIT 75K-HU 9 of 16 identical Swap Change inverters

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

Growatt WIT 75K-AU-US
Growatt
WIT 75K-AU-US
75 kW Hybrid
Open inverter page Datasheet PDF
VS
Growatt WIT 75K-H / WIT 75K-HU
Growatt
WIT 75K-H / WIT 75K-HU
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. 9 of 16 comparable parameters are identical, with 16 more left out because at least one datasheet does not publish them.

See all 7 differences
How alike are they
9 of 16 comparable
parameters are identical
identical differs not published
01

What actually differs

7 of 16 parameters
Parameter AU-US H / WIT 75K-HU Difference
Warranty 10 yrs 5 yrs 5 yrs longer
Nominal AC voltage 480 V 400 V 80 V apart
Max AC current 99.3 A 125.0 A 25.7 A apart
Max efficiency 98.2 % 98.0 % 0.2 pp more efficient
Ingress protection IP66/NEMA 4X IP65 IP66/NEMA 4X vs IP65
Battery voltage 750-1000V for 3P3W / 820-1000V for 3P4W 600~1000V (for 3P3W) / 680~1000V (for 3P4W) 750-1000V for 3P3W / 820-1000V for 3P4W vs 600~1000V (for 3P3W) / 680~1000V (for 3P4W)
Dimensions 1350x850x510 mm 1350x820x510 mm 1350x850x510 mm vs 1350x820x510 mm
02

Full specification

Parameter AU-US H / WIT 75K-HU 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 400 V 80 V apart
Max AC current 99.3 A 125.0 A 25.7 A apart
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 % 98.0 % +0.2 pp for AU-US
CEC efficiency - - Neither datasheet publishes this
Battery
Battery input Yes Yes Same
Battery voltage 750-1000V for 3P3W / 820-1000V for 3P4W 600~1000V (for 3P3W) / 680~1000V (for 3P4W) 750-1000V for 3P3W / 820-1000V for 3P4W vs 600~1000V (for 3P3W) / 680~1000V (for 3P4W)
Max charge current 151 A - Not published by Growatt
Backup power - - Neither datasheet publishes this
Physical
Weight 140.0 kg 140.0 kg Same
Weight per kW 1.9 kg/kW 1.9 kg/kW Same
Dimensions 1350x850x510 mm 1350x820x510 mm 1350x850x510 mm vs 1350x820x510 mm
Ingress protection IP66/NEMA 4X IP65 IP66/NEMA 4X vs IP65
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 5 yrs +5 yrs for AU-US
03

More useful comparisons

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Same type, similar size
Growatt
Growatt WIT 75K-AU-US vs Growatt WIT 75K-A-US / WIT 75K-AU-US
7 differences, the largest is warranty
Same type, similar size
Growatt
Growatt WIT 75K-AU-US vs Growatt WIT 75K-H-US / WIT 75K-HU-US
7 differences, the largest is max ac power
Same type, similar size
Growatt
Growatt WIT 75K-AU-US vs Growatt WIT 75K-A
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.