Growatt MAX 333K-X

InvertersModel MAX-333K-X

Growatt 333 kW Three-Phase On-Grid Solar Inverter MAX 333K-X

The MAX-333K-X is an utility-scale three-phase string inverter. Designed for large rooftops, ground-mount solar farms, and IPP projects in KSA.

  • Max. recommended PV power (for module STC): 499500W
  • Max. DC voltage: 1500V
  • Start voltage: 500V

Choose the Max. recommended PV power (for module STC)

What sets the MAX-333K-X apart from the other 2 models in the family: Max. recommended PV power (for module STC) 499500W; AC nominal power 333000W; Max. AC apparent power 366300VA@25°C 333000VA@45°C 295000VA@50°C; Nominal output current 240.3A.

AED 31,000incl. VAT

In stock

  • Delivered within 3 business days, door to door, to every market we serve.
  • Dispatched the same business day for an order placed before 21:00 (Dubai time), or the next business day after.
  • Delivery charge: free
  • 5-year warranty
Full SpecificationsDownload datasheet (PDF)

Growatt 333 kW Three-Phase On-Grid Solar Inverter MAX 333K-X features

  • Maximum efficiency 99.03%

  • Intelligent string breaking, active safety

  • MPPT current 80A, adapted to 182/210 components

  • String detection and I/V scanning, accurate location of abnormal strings

  • IP66 protection level, adaptable to harsh environments

  • Supports aluminium wire access, saving AC cable cost

About the Growatt 333 kW Three-Phase On-Grid Solar Inverter MAX 333K-X

The MAX-333K-X is an utility-scale three-phase string inverter. Designed for large rooftops, ground-mount solar farms, and IPP projects in KSA. Key features: 1100V or 1500V DC, multi-MPPT, AFCI, smart cooling. 5-year warranty (extendable). Available across the Middle East, Sudan and France through us, the authorised distributor based in Dubai. Remote monitoring via the ShinePhone app and ShineServer cloud — view performance from anywhere, configure alerts, and manage multiple sites.

Specifications last updated 23 July 2026

Growatt 333 kW Three-Phase On-Grid Solar Inverter MAX 333K-X full specifications

Electrical(31)

Max. recommended PV power (for module STC)499500W
Max. DC voltage1500V
Start voltage500V
Nominal voltage1080V
MPP voltage range500V-1500V
Max. input current per MPPT tracker80A
Max. short-circuit current per MPPT tracker100A
No. of MPPT trackers6
No. of PV strings per MPPT tracker5
AC nominal power333000W
Max. AC apparent power366300VA@25°C 333000VA@45°C 295000VA@50°C
Nominal AC voltage800V
AC output range640-920V AC
AC grid frequency (range)50/60 Hz (45-55 Hz / 55-65 Hz)
Nominal output current240.3A
Adjustable power factor0.8 leading - 0.8 lagging
THDi<3%
AC grid connection type3W+PE
Max efficiency99.03%
European efficiency98.53%
MPPT efficiency99.90%
DC reverse polarity protectionYes
DC SwitchYes
AC/DC surge protectionType I / Type II
Insulation resistance monitoringYes
RCD detectionYes
Output short circuit protectionYes
String fault monitoringYes
Anti-PID functionOptional
DisplayLED/WIFI+APP
InterfacesUSB/RS485/GPRS/4G/PLC/WIFI

Mechanical(9)

Dimensions (W / H / D)1145/790/371mm
Weight139kg
Operating temperature range-30°C to +60°C
Altitude5000m (Derating @ 4000 m)
Relative humidity0-100%
Nighttime power consumption<1W
TopologyTransformerless
CoolingSmart air cooling
Protection degreeIP66

Downloads & support

PDFThe manufacturer's sheet, to print or share

Frequently Asked Questions

What are the AC output specifications of the Growatt MAX-333K-X inverter?

On the Growatt MAX-333K-X inverter, the AC nominal power is 333000W, the max. AC apparent power is 366300VA@25°C 333000VA@45°C 295000VA@50°C, the nominal AC voltage is 800V, the AC output range is 640-920V AC and the AC grid frequency (range) is 50/60 Hz (45-55 Hz / 55-65 Hz).

What are the PV input specifications of the Growatt MAX-333K-X inverter?

On the Growatt MAX-333K-X inverter, the max. recommended PV power (for module STC) is 499500W, the max. DC voltage is 1500V, the start voltage is 500V, the MPP voltage range is 500V-1500V and the max. input current per MPPT tracker is 80A.

What are the efficiency specifications of the Growatt MAX-333K-X inverter?

On the Growatt MAX-333K-X inverter, the max efficiency is 99.03%, the European efficiency is 98.53% and the MPPT efficiency is 99.90%.

Which protection functions does the Growatt MAX-333K-X inverter have?

The Growatt MAX-333K-X inverter specification lists DC reverse polarity protection, DC switch, AC/DC surge protection (Type I / Type II), insulation resistance monitoring and RCD detection.

What are the dimensions, weight and enclosure specifications of the Growatt MAX-333K-X inverter?

On the Growatt MAX-333K-X inverter, the dimensions (W / H / D) are 1145/790/371mm, the weight is 139kg, the topology is transformerless, the cooling is Smart air cooling and the protection degree is IP66.

What are the operating environment specifications of the Growatt MAX-333K-X inverter?

On the Growatt MAX-333K-X inverter, the operating temperature range is -30°C to +60°C, the altitude is 5000m (derating @ 4000 m) and the relative humidity is 0-100%.

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