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WIT 75K-HU-US vs WIT 75K-A 6 of 16 identical Swap Change inverters

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

Growatt WIT 75K-HU-US
Growatt
WIT 75K-HU-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

WIT 75K-A leads on the differences that matter

The largest is max dc voltage: 100 V apart. 6 of 16 comparable parameters are identical, with 16 more left out because at least one datasheet does not publish them.

See all 10 differences
How alike are they
6 of 16 comparable
parameters are identical
identical differs not published
01

What actually differs

10 of 16 parameters
Parameter WIT 75K-HU-US WIT 75K-A Difference
Max DC voltage 1100 V 1000 V 100 V apart
Max AC power 82.50 kW 75.00 kW 7.50 kW apart
Weight 153.0 kg 120.0 kg 33.0 kg lighter
Weight per kW 2.0 kg/kW 1.6 kg/kW 0.4 kg/kW lighter
Nominal AC voltage 480 V 400 V 80 V apart
Max AC current 99.3 A 125.3 A 26.0 A apart
Start voltage 195 V 768 V 573 V earlier start
Ingress protection IP66/NEMA 4X IP66 IP66/NEMA 4X vs IP66
Battery voltage 750-1000V for 3P3W / 820-1000V for 3P4W 600-1000V (for 3P3W); 680-1000V (for 3P4W); recovery start: 768V 750-1000V for 3P3W / 820-1000V for 3P4W vs 600-1000V (for 3P3W); 680-1000V (for 3P4W); recovery start: 768V
Dimensions 1350x850x510 mm 1350x820x510 mm 1350x850x510 mm vs 1350x820x510 mm
02

Full specification

Parameter WIT 75K-HU-US WIT 75K-A Difference
AC output
Rated AC power 75.00 kW 75.00 kW Same
Max AC power 82.50 kW 75.00 kW 7.50 kW apart
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 156.00 kW - Not published by Growatt
DC/AC ratio 2.08 - Not published by Growatt
Max DC voltage 1100 V 1000 V 100 V apart
MPPT voltage range 180-800 V - Not published by Growatt
Start voltage 195 V 768 V -573 V for WIT 75K-HU-US
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 % - Not published by Growatt
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); recovery start: 768V 750-1000V for 3P3W / 820-1000V for 3P4W 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 153.0 kg 120.0 kg -33.0 kg for WIT 75K-A
Weight per kW 2.0 kg/kW 1.6 kg/kW -0.4 kg/kW for WIT 75K-A
Dimensions 1350x850x510 mm 1350x820x510 mm 1350x850x510 mm vs 1350x820x510 mm
Ingress protection IP66/NEMA 4X IP66 IP66/NEMA 4X 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

More useful comparisons

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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
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Growatt
Growatt WIT 75K-HU-US vs Growatt WIT 75K-AU-US
2 differences, the largest is warranty
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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-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.