GROWATT GWT-WIT8K-X-HU Hybrid Inverter 3-Phase LV

The Growatt WIT 8K-HU hybrid inverter is a three-phase low-voltage inverter designed for use with energy storage systems and photovoltaic installations. The device offers off-grid operation mode (backup/UPS) with the ability to power unbalanced phases and features black start capability and generator support.

Manufacturer: Growatt (SHENZHEN GROWATT NEW ENERGY CO., LTD.) is a company engaged in the production of photovoltaic inverters and energy storage systems. The manufacturer is based in Shenzhen, China (A: 4-13/F, Building A, Sino-German (Europe) Industrial Park, Hangcheng Ave, Bao'an District, Shenzhen). The company provides devices with RS485/CAN communication and support for applications and network interfaces.

Selected Electrical Parameters

• Nominal Power (AC): 8000 W
• Max. Apparent Power (AC): 8800 VA
• Nominal Output Voltage: 220 V / 230 V (also possible 380 V / 400 V)
• Nominal Output Current (backup): 24.2 A @220 V, 23.2 A @230 V
• Max. String Current: up to 20 A (max. input current per MPPT: 20A + 20A)
• Max. PV Input Voltage: 1000 V
• MPPT Voltage Range: 160 V - 850 V
• Number of MPPTs: 2 (PV strings per MPPT: 1+1)
• Max. Battery Charging/Discharging Current: 200 A
• Efficiency: max. efficiency 97.60%, European efficiency 97.00%, MPPT efficiency 99.90%
• THDv (Voltage Distortion): <3% (for linear load)
• On/Off-grid Switching Time: 10 ms
• BMS Support: RS485 / CAN

Mechanical and Environmental Parameters

• Dimensions (W / H / D): 422 / 658 / 254 mm
• Weight: 38 kg
• Operating Temperature: –30°C … +60°C (derating above 45°C)
• Noise Level: ≤50 dB(A)
• Protection Class: IP66
• Topology and Cooling: Transformerless, intelligent air cooling
• Display and Interfaces: OLED / LED + app; RS485/USB, Wi‑Fi/LAN interfaces (Wi‑Fi/LAN optional)
• Compliance and Standards: including IEC 62109, IEC 61000, IEC 61727, EN 50549, VDE 4105