Growatt WIT 28-55K-HU

InvertersModel WIT-28-55K-HU

Growatt 60.5 kW Three-Phase Hybrid Solar Inverter WIT 28-55K-HU

The WIT-28-55K-HU is a three-phase commercial hybrid inverter. Designed for schools, mosques, agritech farms, and SMEs across the Middle East replacing diesel gensets with PV+battery.

  • Max. recommended PV power (for module STC): 56kW / 75.6kW / 86.4kW / 108kW
  • Start voltage: 195V
  • Max. open circuit voltage of PV: 630V
AED 24,200incl. 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 60.5 kW Three-Phase Hybrid Solar Inverter WIT 28-55K-HU features

  • Scalable system configuration, extend to 165kW

  • Support UPS function and black start

  • 100% unbalanced load when backup

  • 110% continuous AC overloading capacity

  • Support remote control of DG

  • Grid-support functions

About the Growatt 60.5 kW Three-Phase Hybrid Solar Inverter WIT 28-55K-HU

The WIT-28-55K-HU is a three-phase commercial hybrid inverter. Designed for schools, mosques, agritech farms, and SMEs across the Middle East replacing diesel gensets with PV+battery. Key features: AXE battery compatible, black-start capable (XHU), parallel-able to 1MW. 5-year warranty. 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 1 May 2026

Growatt 60.5 kW Three-Phase Hybrid Solar Inverter WIT 28-55K-HU full specifications

Electrical(35)

Max. recommended PV power (for module STC)56kW / 75.6kW / 86.4kW / 108kW
Start voltage195V
Max. open circuit voltage of PV630V
MPPT voltage range360V-1000V / 360V-550V / 360V-550V / 360V-550V
Max. input current per MPPT tracker32A
Max. short-circuit current per MPPT tracker40A
No. of PV strings per MPPT tracker2
No. of MPPT trackers5 / 7 / 8 / 10
AC nominal power/max. AC apparent power28kW/30.8kVA / 35kW/38.5kVA / 40kW/44kVA / 55kW/60.5kVA
Nominal AC voltage/range208V/220V, -15%~10%
AC grid frequency/range60Hz, 55-65Hz
Max. output current85.4A@208V / 106.9A@208V / 122.2A@208V / 168.1A@208V
Adjustable power factor-1...+1
THDi<3% (100% load)
AC grid connection type3P3W+PE/3P4W+PE
Battery voltage range380V-650V, recommended @ 512V
Max. charging / discharging current79A / 99A / 113A / 156A
Continuous charging / discharging power31.7kW / 39.7kW / 45.3kW / 62.3kW
BMS communicationRS485/CAN
Battery typeLithium
Max. efficiency98.2%
PV reverse polarity protectionYes
Battery reverse protectionYes
AC/DC surge protectionType II
Insulation resistance monitoringYes
Ground fault monitoringYes
Grid monitoringYes
Residual-current monitoring unitYes
AC short-circuit protectionYes
String monitoringYes
Anti-islanding protectionYes
PID protectionYes
AFCI functionOpt
InterfacesRS485/CAN
Interfaces/WIFI/4GYes/Opt

Mechanical(2)

Dimensions (W/H/D)33.5/53.1/20.1 inch (850/1350/510mm)
Weight153kg/337.3lbs / 160kg/352.7lbs / 160kg/352.7lbs / 160kg/352.7lbs

Environmental(6)

Operating temperature range-22°F~+140°F, >122°F derating
Altitude13123ft(4000m)
TopologyTransformerless
CoolingSmart air cooling
EnclosureIP66/NEMA 4X
DisplayOLED+LED/WIFI+APP

Downloads & support

PDFThe manufacturer's sheet, to print or share

Frequently Asked Questions

What are the AC output specifications of the Growatt WIT-28-55K-HU inverter?

On the Growatt WIT-28-55K-HU inverter, the AC nominal power/max. AC apparent power is 28kW/30.8kVA / 35kW/38.5kVA / 40kW/44kVA / 55kW/60.5kVA, the nominal AC voltage/range is 208V/220V, -15%~10%, the AC grid frequency/range is 60Hz, 55-65Hz, the adjustable power factor is -1...+1 and the THDi is <3% (100% load).

What are the PV input specifications of the Growatt WIT-28-55K-HU inverter?

On the Growatt WIT-28-55K-HU inverter, the start voltage is 195V, the max. open circuit voltage of PV is 630V, the max. input current per MPPT tracker is 32A, the max. short-circuit current per MPPT tracker is 40A and the number of PV strings per MPPT tracker is 2.

What are the battery specifications of the Growatt WIT-28-55K-HU inverter?

On the Growatt WIT-28-55K-HU inverter, the battery voltage range is 380V-650V, recommended @ 512V, the max. charging / discharging current is 79A / 99A / 113A / 156A, the continuous charging / discharging power is 31.7kW / 39.7kW / 45.3kW / 62.3kW, the BMS communication is RS485/CAN and the battery type is lithium.

What are the efficiency specifications of the Growatt WIT-28-55K-HU inverter?

On the Growatt WIT-28-55K-HU inverter, the max. efficiency is 98.2%.

Which protection functions does the Growatt WIT-28-55K-HU inverter have?

The Growatt WIT-28-55K-HU inverter specification lists PV reverse polarity protection, battery reverse protection, AC/DC surge protection (Type II), insulation resistance monitoring and ground fault monitoring.

What are the dimensions, weight and enclosure specifications of the Growatt WIT-28-55K-HU inverter?

On the Growatt WIT-28-55K-HU inverter, the dimensions (W/H/D) are 33.5/53.1/20.1 inch (850/1350/510mm), the topology is transformerless, the cooling is Smart air cooling and the enclosure is IP66/NEMA 4X.

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