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WIT 75K-A vs WIT 75K-AU-US 6 of 14 identical Swap Change inverters

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

Growatt WIT 75K-A
Growatt
WIT 75K-A
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

WIT 75K-A leads on the differences that matter

The largest is max ac power: 7.50 kW apart. 6 of 14 comparable parameters are identical, with 18 more left out because at least one datasheet does not publish them.

See all 8 differences
How alike are they
6 of 14 comparable
parameters are identical
identical differs not published
01

What actually differs

8 of 14 parameters
Parameter WIT 75K-A WIT 75K-AU-US Difference
Max AC power 75.00 kW 82.50 kW 7.50 kW apart
Weight 120.0 kg 140.0 kg 20.0 kg lighter
Nominal AC voltage 400 V 480 V 80 V apart
Max AC current 125.3 A 99.3 A 26.0 A apart
Ingress protection IP66 IP66/NEMA 4X IP66 vs IP66/NEMA 4X
Weight per kW 1.6 kg/kW 1.9 kg/kW 0.3 kg/kW lighter
Battery voltage 600-1000V (for 3P3W); 680-1000V (for 3P4W); recovery start: 768V 750-1000V for 3P3W / 820-1000V for 3P4W 600-1000V (for 3P3W); 680-1000V (for 3P4W); recovery start: 768V vs 750-1000V for 3P3W / 820-1000V for 3P4W
Dimensions 1350x820x510 mm 1350x850x510 mm 1350x820x510 mm vs 1350x850x510 mm
02

Full specification

Parameter WIT 75K-A WIT 75K-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 400 V 480 V 80 V apart
Max AC current 125.3 A 99.3 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 - 98.2 % Not published by Growatt
CEC efficiency - - Neither datasheet publishes this
Battery
Battery input Yes Yes Same
Battery voltage 600-1000V (for 3P3W); 680-1000V (for 3P4W); recovery start: 768V 750-1000V for 3P3W / 820-1000V for 3P4W 600-1000V (for 3P3W); 680-1000V (for 3P4W); recovery start: 768V 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 WIT 75K-A
Weight per kW 1.6 kg/kW 1.9 kg/kW -0.3 kg/kW for WIT 75K-A
Dimensions 1350x820x510 mm 1350x850x510 mm 1350x820x510 mm vs 1350x850x510 mm
Ingress protection IP66 IP66/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 - - Neither datasheet publishes this
Integrated DC switch - - Neither datasheet publishes this
Warranty
Warranty - 10 yrs Not published by Growatt
03

More useful comparisons

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Same type, similar size
Growatt
Growatt WIT 75K-A vs Growatt WIT 75K-A-US / WIT 75K-AU-US
5 differences, the largest is nominal ac voltage
Same type, similar size
Growatt
Growatt WIT 75K-A vs Growatt WIT 75K-H-US / WIT 75K-HU-US
9 differences, the largest is max dc voltage
Same type, similar size
Growatt
Growatt WIT 75K-A vs Growatt WIT 75K-AU
The same specification on paper
04

Written summary

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