Full specifications

Brand	Growatt
Inverter Specifications
Model	WIT 4K-HU
Inverter type	Hybrid
Grid type	Three Phase
IP class	IP66
Warranty	5 Years
PV Input Data
Max DC input power	6400 W
PV input voltage	1000 V
MPPT voltage range	200-750 V
Max. PV input current	40 A
No. of MPPT	1
No. of strings per MPPT	2
Startup voltage	180 V
AC Output Data
Rated AC output	4000 W
Rated AC output current	6.4 A
Rated voltage	400 V
Parallel operation	Yes
Power factor	0.8 leading to 0.8 lagging
Battery Data
Battery type	Lithium & Lead-Acid
Battery voltage range	40-60 V
Max. charging current	110 A
Max. discharging current	110 A
BMS	RS485 / CAN
Protections
PV arc fault detection	Yes
PV reverse polarity detection	Yes
Insulation resistance detection	Yes
Leakage current detection	Yes
AC overcurrent protection	Yes
Output short circuit protection	Yes
Surge protection	Yes
General Specifications
Weight	38 kg
Operating temperature	-30°C ~ +60°C
Max. efficiency	97.6%
Size (W×H×D)	475 × 698 × 240 mm

Note: Three-phase hybrid on a 48 V battery - the combination most Pakistani three-phase homes actually want, since the HV hybrids from Fox and others need a 400 V stack. 110 A charge and discharge. Backup is 100% three-phase unbalanced capable, so you can run a heavy load on one phase, at 11.6 A per phase with 2x rated power for 10 s and 10 ms switchover. AC input side is rated at double the output, which is what allows that passthrough. 1 MPPT with 40 A input over a 200-750 V window. IP66, 38 kg, smart air cooling up to 50 dB, 3000 m.