Growatt MID 33KTL3-X

Growatt Solar Inverter Datasheet — MID-33KTL3-X

Growatt — the world's #1 residential solar inverter brand by Wood Mackenzie. The MID 33KTL3-X is a three-phase commercial string inverter. Designed for C&I rooftops in JAFZA, Riyadh industrial zones, and warehouse installations across the Gulf.

SKU: MID-33KTL3-X | Last Updated: 2026-07-23

⚡Electrical Specifications

Max. recommended PV power (for module STC)49500W
Max. DC voltage1100V
Start Voltage250V
Nominal Voltage600V
MPPT voltage range200-1000V
No. of MPP trackers3
No. of PV strings per MPP tracker2
Max. input current per MPP tracker26A
Max. short circuit current per MPP tracker32A
AC nominal power33000W
Max. AC apparent power36600VA
Nominal AC voltage (range)220V/380V, 230V/400V (340-440V)
AC grid frequency (range)50/60 Hz (45-55Hz/55-65 Hz)
Max. output current55.5A
Adjustable power factor0.8leading...0.8lagging
THD<3%
AC grid connection type3W+N+PE
Max. efficiency98.8%
European efficiency98.5%
MPPT efficiency99.9%
DC reverse polarity protectionYes
DC SwitchYes
AC/DC surge protectionType II / Type II
Insulation resistance monitoringYes
AC short-circuit protectionYes
Ground fault monitoringYes
Grid monitoringYes
Anti-islanding protectionYes
Residual-current monitoring unitYes
String monitoringYes
AFCI protectionYes*

🔧Mechanical Specifications

Dimensions (W / H / D)580×435×230mm
Weight29.5kg
Operating temperature range-25°C...+60°C
Nighttime power consumption<1W
TopologyTransformerless
CoolingSmart air cooling
Protection degreeIP66
Relative humidity0-100%
Altitude4000m
DC connectionH4/MC4(Optional)
AC connectionCable gland+OT terminal
DisplayOLED+LED+WiFi+APP
Interfaces: RS485 / USB / WiFi / GPRS / RF / LANYes/Yes/Optional/Optional/Optional/Optional

📏Dimensions

Width
Height
Depth
Weight