40 kW Hybrid with 4 MPPT trackers. DC input up to 1,100 V, MPPT range 180–1,000 V.
Max DC voltage
1,100 V
MPPT voltage range
180–1,000 V
Start-up voltage
180 V
Max input current per MPPT
40 A
Max short-circuit current
50 A
Nominal AC power
40 kW
MPPT configuration
4 MPPT × 3 strings
Max DC power input
80 kW
Inverter type
Hybrid
The Growatt WIT 40K-XHU is a 40 kW inverter suitable for residential and commercial solar installations. The panel matcher above shows all compatible solar panels with optimal string configurations calculated automatically based on voltage, current, and temperature limits.
Use our string sizing calculator for a detailed 7-check compatibility analysis with temperature-adjusted voltage and current calculations.
The Growatt WIT 40K-XHU has 4 MPPT tracker(s), each supporting 3 input string(s). The exact panel count per string depends on your panel's Voc relative to the MPPT range 180–1,000 V. Use the matcher above to find the optimal configuration automatically.
The Growatt WIT 40K-XHU MPPT accepts DC voltages between 180 V and 1,000 V. At summer temperatures, the string Vmpp must stay above 180 V. At winter temperatures, the string Voc must not exceed the absolute DC limit of 1,100 V. The matcher calculates these temperature-adjusted checks automatically.
Yes — the Growatt WIT 40K-XHU is compatible with any solar panel brand as long as the string voltage and current stay within its electrical limits. Panel brand does not affect compatibility. What matters is that the string Voc at coldest temperature stays below 1,100 V, Vmpp stays within 180–1,000 V, and total current stays below 50 A.