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WIT 75K-A-US / WIT 75K-AU-US vs WIT 75K-A 9 of 14 identical Swap Change inverters

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

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-A
Growatt
WIT 75K-A
75 kW Hybrid
Open inverter page Datasheet PDF
The verdict

5 differences, none of them an advantage

The largest is nominal ac voltage: 80 V apart. 9 of 14 comparable parameters are identical, with 18 more left out because at least one datasheet does not publish them.

See all 5 differences
How alike are they
9 of 14 comparable
parameters are identical
identical differs not published
01

What actually differs

5 of 14 parameters
Parameter WIT 75K-A-US / WIT 75K-AU-US WIT 75K-A Difference
Nominal AC voltage 480 V 400 V 80 V apart
Max AC current 99.3 A 125.3 A 26.0 A apart
Ingress protection NEMA/IP66 IP66 NEMA/IP66 vs IP66
Battery voltage 750-1000 V 600-1000V (for 3P3W); 680-1000V (for 3P4W); recovery start: 768V 750-1000 V vs 600-1000V (for 3P3W); 680-1000V (for 3P4W); recovery start: 768V
Dimensions 1200x820x510 mm 1350x820x510 mm 1200x820x510 mm vs 1350x820x510 mm
02

Full specification

Parameter WIT 75K-A-US / WIT 75K-AU-US WIT 75K-A Difference
AC output
Rated AC power 75.00 kW 75.00 kW Same
Max AC power 75.00 kW 75.00 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 125.3 A 26.0 A apart
PV input
Max PV power - - Neither datasheet publishes this
DC/AC ratio - - Neither datasheet publishes this
Max DC voltage - 1000 V Not published by Growatt
MPPT voltage range - - Neither datasheet publishes this
Start voltage - 768 V Not published by Growatt
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 - - Neither datasheet publishes this
CEC efficiency - - Neither datasheet publishes this
Battery
Battery input Yes Yes Same
Battery voltage 750-1000 V 600-1000V (for 3P3W); 680-1000V (for 3P4W); recovery start: 768V 750-1000 V vs 600-1000V (for 3P3W); 680-1000V (for 3P4W); recovery start: 768V
Max charge current - - Neither datasheet publishes this
Backup power - - Neither datasheet publishes this
Physical
Weight 120.0 kg 120.0 kg Same
Weight per kW 1.6 kg/kW 1.6 kg/kW Same
Dimensions 1200x820x510 mm 1350x820x510 mm 1200x820x510 mm vs 1350x820x510 mm
Ingress protection NEMA/IP66 IP66 NEMA/IP66 vs IP66
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 - - 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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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.