Hybrid
Growatt undefined WIT 28K-A-US L2/WIT 28K-AU-US L2

GrowattWIT 28-55K-AU-US L2/ K-A-US L2

WIT 28K-A-US L2/WIT 28K-AU-US L2

Region:China
Region shows where the seller or factory is located. Most ship globally, and all listed suppliers should be able to ship to your current location.
28kW
Nominal AC Power
98%
Max Efficiency
820 x 1350
Dimensions (mm)

Ideal Use Case

The Growatt WIT 28K-A-US L2/WIT 28K-AU-US L2 is tailored for specific solar energy needs. This inverter is an excellent choice if you:

Operate a 28.0 kW commercial solar installation
Use three-phase grid connection
Want maximum energy harvest (98.0% peak efficiency)
Want to add battery storage now or in the future
Operate in extremely cold climates

Don’t guess your solar setup — calculate it first!

Take our Solar Quiz to get a personalized recommendation for panels, inverter, battery capacity, and system size — before you spend money on the wrong setup.

Run Technical Sizing

AC Output Data

Nominal AC Power28 kW
Max Efficiency98 %
Euro Efficiency0 %
Max AC Current0 A
Rated AC Current0 A
Number of Feed-in Phases3
THD (Total Harmonic Distortion)3 %

DC Input Data

Max DC Voltage0 V
Min DC Voltage to Start0 V
Max DC Current0 A
Number of MPP Trackers0
DC Inputs0
ConnectorsMC4

Mechanical & Environmental Data

Dimensions (W x H x D)820 x 1350 x 510 mm
Weight120.0 kg
Protection ClassIP66
Cooling MethodFan
DisplayLED
InterfaceRS 485, USB, WLAN

Operating Conditions

Operating Temperature-30 ~ +60 ℃
Humidity0-100 %
Frequency45-65 Hz
Max Altitude4000 m
Transformer TypeTransformerless
Power Consumption (Night)0 W

Similar Products

Product FAQ

What size solar array can the Growatt WIT 28K-A-US L2/WIT 28K-AU-US L2 handle?

The Growatt WIT 28K-A-US L2/WIT 28K-AU-US L2 has a nominal AC output of 28kW with a maximum efficiency of 98%. It is typically paired with a solar array of 34–36kW DC for optimal energy harvest.

Is the Growatt WIT 28K-A-US L2/WIT 28K-AU-US L2 a hybrid inverter?

Yes, the Growatt WIT 28K-A-US L2/WIT 28K-AU-US L2 is a hybrid inverter that supports direct battery connection for energy storage and backup power.

Does the Growatt WIT 28K-A-US L2/WIT 28K-AU-US L2 have WiFi monitoring?

Most Growatt inverters come with or support optional WiFi/Ethernet dongles. This allows you to track your solar production and battery status via a mobile app or web portal in real-time.

Is the Growatt WIT 28K-A-US L2/WIT 28K-AU-US L2 a three-phase inverter?

Yes, this is a three-phase inverter. Three-phase inverters are ideal for larger homes, commercial systems, or regions with three-phase grid connections.