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A-US / WIT 75K-AU-US vs AU-US 8 of 15 identical Swap Change inverters

Growatt WIT 75K-A-US / WIT 75K-AU-US vs Growatt WIT 75K-AU-US

Growatt WIT 75K-A-US / WIT 75K-AU-US
Growatt
WIT 75K-A-US / WIT 75K-AU-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

7 differences, and they point both ways

The largest is warranty: 5 yrs longer. 8 of 15 comparable parameters are identical, with 17 more left out because at least one datasheet does not publish them.

See all 7 differences
How alike are they
8 of 15 comparable
parameters are identical
identical differs not published
01

What actually differs

7 of 15 parameters
Parameter A-US / WIT 75K-AU-US AU-US Difference
Warranty 5 yrs 10 yrs 5 yrs longer
Max AC power 75.00 kW 82.50 kW 7.50 kW apart
Weight 120.0 kg 140.0 kg 20.0 kg lighter
Ingress protection NEMA/IP66 IP66/NEMA 4X NEMA/IP66 vs IP66/NEMA 4X
Weight per kW 1.6 kg/kW 1.9 kg/kW 0.3 kg/kW lighter
Battery voltage 750-1000 V 750-1000V for 3P3W / 820-1000V for 3P4W 750-1000 V vs 750-1000V for 3P3W / 820-1000V for 3P4W
Dimensions 1200x820x510 mm 1350x850x510 mm 1200x820x510 mm vs 1350x850x510 mm
02

Full specification

Parameter A-US / WIT 75K-AU-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 - - Neither datasheet publishes this
DC/AC ratio - - Neither datasheet publishes this
Max DC voltage - - Neither datasheet publishes this
MPPT voltage range - - Neither datasheet publishes this
Start voltage - - Neither datasheet publishes this
MPP trackers - - Neither datasheet publishes this
Strings per tracker - - Neither datasheet publishes this
Max input current per tracker - - Neither datasheet publishes this
Efficiency
European efficiency - - Neither datasheet publishes this
Max efficiency - 98.2 % Not published by Growatt
CEC efficiency - - Neither datasheet publishes this
Battery
Battery input Yes Yes Same
Battery voltage 750-1000 V 750-1000V for 3P3W / 820-1000V for 3P4W 750-1000 V vs 750-1000V for 3P3W / 820-1000V for 3P4W
Max charge current - 151 A Not published by Growatt
Backup power - - Neither datasheet publishes this
Physical
Weight 120.0 kg 140.0 kg -20.0 kg for A-US / WIT 75K-AU-US
Weight per kW 1.6 kg/kW 1.9 kg/kW -0.3 kg/kW for A-US / WIT 75K-AU-US
Dimensions 1200x820x510 mm 1350x850x510 mm 1200x820x510 mm vs 1350x850x510 mm
Ingress protection NEMA/IP66 IP66/NEMA 4X NEMA/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 - - 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

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Growatt WIT 75K-A-US / WIT 75K-AU-US vs Growatt WIT 75K-A
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Growatt WIT 75K-A-US / WIT 75K-AU-US vs Growatt WIT 75K-AU
5 differences, the largest is nominal ac voltage
04

Written summary

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