Growatt WIT 6K-HU hybrid inverter 6kW 3-phase

With the Growatt WIT 6K-HU hybrid inverter (MPN: WIT 6K-HU), you get a powerful three-phase inverter that combines high energy yields, maximum flexibility, and reliable emergency power supply. Thanks to the DC/AC ratio of 1.6, you can make optimal use of your PV system and thus generate more energy. The inverter offers a maximum current per MPPT of 20A, supports a maximum PV input voltage of 1000V, and enables a charging and discharging current of 110A. In addition, it can be scaled up to 90 kW, supports DC and AC-coupled systems, and is compatible with multiple battery systems. With its UPS function, black start capability, and intelligent load control, the WIT 6K-HU is a future-proof solution for private and commercial PV systems with storage.

The Growatt WIT 6K-HU at a glance

• Three-phase hybrid inverter
• High yields thanks to DC/AC ratio of 1.6
• Max. recommended PV power: 6.4 kW
• Maximum current per MPPT: 20A
• Supports DC and AC-coupled systems
• Compatible with multiple battery systems
• Scalable up to 90 kW (up to 6 devices in parallel)
• UPS function with only 10 ms switchover time
• Black start capable for maximum reliability
• MODBUS TCP available for smart integration
• Optional monitoring via Shine app or web platform
• Protection class IP66 for indoor and outdoor use

Compatible battery systems

The Growatt WIT 6K-HU hybrid inverter is compatible with various battery systems, including:

• Growatt AXE 5.0L-C1 – LiFePO₄ battery with CAN bus communication
• Hope 5.5L-A1 and Hope 5.0L-B1 – LiFePO₄ batteries with RS485 communication
• Sacolar STR 5.5-A1 – LiFePO₄ battery with CAN bus communication
• ALP 5.0L-E2-US and ALP 5.0L-E1 – LiFePO₄ batteries with CAN bus communication

Why a hybrid inverter?

The WIT 6K-HU combines the functions of a grid inverter with integrated battery management. This allows you to store excess energy and retrieve it when needed. With support for DC-coupled and AC-coupled systems, the inverter is particularly flexible and future-proof – ideal for homes and businesses with growing energy needs.

Maximum Power Point Tracking

MPPT (Maximum Power Point Tracking) technology maximizes the energy yield of your PV system. With a maximum input current of 20A per MPPT, the WIT 4K-HU also supports modern, high-performance solar modules. The large MPPT voltage range from 150V to 850V ensures high efficiency even in partial shade or with variable module orientation.

Easy installation and smart control

With its compact design and IP66 protection class, the WIT 6K-HU is ideal for outdoor use. It can be easily integrated into energy management systems via MODBUS TCP. Optionally, you can connect the device to the Growatt Shine app via Wi-Fi or LAN to monitor the system online at any time.

Protective functions

• PV reverse polarity protection
• Integrated DC disconnect switch
• DC/AC overvoltage protection type II/III
• Insulation resistance detection
• Fault current monitoring
• AC short-circuit protection
• Ground fault monitoring
• Grid monitoring and anti-islanding protection
• AFCI function for arc detection

Technical data

PV input

• Max. recommended PV power: 9,600W
• Maximum PV input voltage: 1,000V
• Start voltage: 180V
• Nominal DC voltage: 600V
• MPPT voltage range: 150V – 850V
• Max. input current per MPPT: 40 A
• Max. short-circuit current per MPPT: 50 A
• Number of MPPT: 1
• Number of strings per MPPT: 2

Output (AC)

• AC rated power: 6,000 W
• Max. AC apparent power: 6,600 VA
• AC rated voltage: 220/380V, 230/400V, -15%~+10%
• Max. output current at 220V: 10.0A
• Max. output current at 230V: 9.6A

Input (AC)

• AC rated power: 120000W
• Max. AC apparent power: 13200VA
• AC rated voltage/range: 220/380V, 230/400V, -15%~+10%
• Max. input current at 220V: 20.0A
• Max. input current at 230V: 19.1A

Battery data (DC)

• Battery voltage range: 40-60V
• Max. charging/discharging current: 150A
• Recommended battery voltage: 51.2V
• BMS communication: RS485/CAN

Backup power (AC)

• AC rated output power: 6000W
• Max. AC apparent power: 2 times rated power, 10s
• AC rated output voltage: 220/380V, 230/400V
• Max. output current at 220V: 18.2A
• Max. output current at 230V: 20.0A

General

• Max. efficiency: 97.6%
• European efficiency: 97.00%
• MPPT efficiency: 99.90%
• Cooling: Intelligent air cooling
• Protection class: IP66
• Weight: 38 kg
• Dimensions: 475 × 698 × 240 mm

Scope of delivery

1x Growatt WIT 6K-HU hybrid inverter
1x mounting bracket
1x Operating instructions