On-Grid
Growatt undefined MAX 333K-X

Growatt • MAX 320-350K-X

MAX 333K-X

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.
333kW
Nominal AC Power
99.03%
Max Efficiency
1145 x 790
Dimensions (mm)
Size Your System Find Installer

Ideal Use Case

The Growatt MAX 333K-X is tailored for specific solar energy needs. This inverter is an excellent choice if you:

Manage a large 333.0 kW commercial or industrial solar array
Use three-phase grid connection
Need 6 independent MPPT trackers for different roof orientations
Want maximum energy harvest (99.0% peak efficiency)
Focus on grid-tied operation without battery storage
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 Power333 kW
Max Efficiency99.03 %
Euro Efficiency98.53 %
Max AC Current0 A
Rated AC Current0 A
Number of Feed-in Phases3
THD (Total Harmonic Distortion)3 %

DC Input Data

MPP Voltage Range500~1500 V
Max DC Voltage1500 V
Min DC Voltage to Start500 V
Max DC Current480 A
Number of MPP Trackers6
DC Inputs30

Mechanical & Environmental Data

Dimensions (W x H x D)1145 x 790 x 370 mm
Weight126.0 kg
Protection ClassIP66
Cooling MethodFan
DisplayLED
InterfaceRS 485, USB, WLAN

Operating Conditions

Operating Temperature-30 ~ +60 ℃
Humidity0-100 %
Frequency45-65 Hz
Max Altitude5000 m
Transformer TypeTransformerless
Power Consumption (Night)1 W

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Product FAQ

What size solar array can the Growatt MAX 333K-X handle?

The Growatt MAX 333K-X has a nominal AC output of 333kW with a maximum efficiency of 99.03%. It is typically paired with a solar array of 400–433kW DC for optimal energy harvest.

Is the Growatt MAX 333K-X a hybrid inverter?

The Growatt MAX 333K-X is a on-grid inverter. To add battery storage, you would need a separate AC-coupled battery inverter or upgrade to a hybrid model.

Does the Growatt MAX 333K-X 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.

How many MPPT trackers does the Growatt MAX 333K-X have?

This inverter features 6 independent MPPT trackers with a maximum DC input voltage of 1500V. Multiple trackers allow panels on different roof faces or orientations to operate independently for maximum yield.

Is the Growatt MAX 333K-X 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.