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WT 55K-H-US L2 / WT 55K-HU-US L2 vs WIT 55K-A-US L2 / WIT 55K-AU-US L2 6 of 12 identical Swap Change inverters

Growatt WT 55K-H-US L2 / WT 55K-HU-US L2 vs Growatt WIT 55K-A-US L2 / WIT 55K-AU-US L2

Growatt WT 55K-H-US L2 / WT 55K-HU-US L2
Growatt
WT 55K-H-US L2 / WT 55K-HU-US L2
55 kW Hybrid
Open inverter page Datasheet PDF
VS
Growatt WIT 55K-A-US L2 / WIT 55K-AU-US L2
Growatt
WIT 55K-A-US L2 / WIT 55K-AU-US L2
55 kW Hybrid
Open inverter page Datasheet PDF
The verdict

WIT 55K-A-US L2 / WIT 55K-AU-US L2 leads on the differences that matter

The largest is max ac power: 5.50 kW apart. 6 of 12 comparable parameters are identical, with 20 more left out because at least one datasheet does not publish them.

See all 6 differences
How alike are they
6 of 12 comparable
parameters are identical
identical differs not published
01

What actually differs

6 of 12 parameters
Parameter WT 55K-H-US L2 / WT 55K-HU-US L2 WIT 55K-A-US L2 / WIT 55K-AU-US L2 Difference
Max AC power 55.00 kW 60.50 kW 5.50 kW apart
Weight 140.0 kg 120.0 kg 20.0 kg lighter
Weight per kW 2.5 kg/kW 2.2 kg/kW 0.4 kg/kW lighter
Ingress protection IP66 IP66/NEMA 4X IP66 vs IP66/NEMA 4X
Battery voltage 380-650V 380~450V 380-650V vs 380~450V
Dimensions 1350x820x501 mm 820x1350x501 mm 1350x820x501 mm vs 820x1350x501 mm
02

Full specification

Parameter WT 55K-H-US L2 / WT 55K-HU-US L2 WIT 55K-A-US L2 / WIT 55K-AU-US L2 Difference
AC output
Rated AC power 55.00 kW 55.00 kW Same
Max AC power 55.00 kW 60.50 kW 5.50 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 208 V - Not published by Growatt
Max AC current 168.1 A 168.1 A Same
PV input
Max PV power 108.00 kW - Not published by Growatt
DC/AC ratio 1.96 - Not published by Growatt
Max DC voltage 800 V - Not published by Growatt
MPPT voltage range 180-600 V - Not published by Growatt
Start voltage 195 V - Not published by Growatt
MPP trackers 2 - Not published by Growatt
Strings per tracker - - Neither datasheet publishes this
Max input current per tracker 32.0 A - Not published by Growatt
Efficiency
European efficiency - - Neither datasheet publishes this
Max efficiency 98.0 % 98.0 % Same
CEC efficiency - - Neither datasheet publishes this
Battery
Battery input Yes Yes Same
Battery voltage 380-650V 380~450V 380-650V vs 380~450V
Max charge current - - Neither datasheet publishes this
Backup power - - Neither datasheet publishes this
Physical
Weight 140.0 kg 120.0 kg -20.0 kg for WIT 55K-A-US L2 / WIT 55K-AU-US L2
Weight per kW 2.5 kg/kW 2.2 kg/kW -0.4 kg/kW for WIT 55K-A-US L2 / WIT 55K-AU-US L2
Dimensions 1350x820x501 mm 820x1350x501 mm 1350x820x501 mm vs 820x1350x501 mm
Ingress protection IP66 IP66/NEMA 4X IP66 vs IP66/NEMA 4X
Cooling forced-air - Not published by Growatt
Noise - - Neither datasheet publishes this
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi - - Neither datasheet publishes this
Ethernet - - Neither datasheet publishes this
Arc fault protection - - Neither datasheet publishes this
Integrated DC switch - - Neither datasheet publishes this
Warranty
Warranty - - Neither datasheet publishes this
03

More useful comparisons

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Same type, similar size
GoodWe
Growatt WT 55K-H-US L2 / WT 55K-HU-US L2 vs GoodWe GW50K-ET-10
13 differences, the largest is rated ac power
Same type, similar size
Ginlong Solis
Growatt WT 55K-H-US L2 / WT 55K-HU-US L2 vs Ginlong Solis S6-EH3P50K-H
14 differences, the largest is rated ac power
Same type, similar size
Ginlong Solis
Growatt WT 55K-H-US L2 / WT 55K-HU-US L2 vs Ginlong Solis S6-EH3P60K-H(21A)
16 differences, the largest is rated 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.