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MID 40K-HU vs WIT 40K-XHU 16 of 25 identical Swap Change inverters

Growatt MID 40K-HU vs Growatt WIT 40K-XHU

Growatt MID 40K-HU
Growatt
MID 40K-HU
40 kW 97.2 % euro Hybrid
Open inverter page Datasheet PDF
VS
Growatt WIT 40K-XHU
Growatt
WIT 40K-XHU
40 kW Hybrid
Open inverter page Datasheet PDF
The verdict

MID 40K-HU leads on the differences that matter

The largest is max dc voltage: 100 V apart. 16 of 25 comparable parameters are identical, with 7 more left out because at least one datasheet does not publish them.

See all 9 differences
How alike are they
16 of 25 comparable
parameters are identical
identical differs not published
01

What actually differs

9 of 25 parameters
Parameter MID 40K-HU WIT 40K-XHU Difference
Max DC voltage 1000 V 1100 V 100 V apart
Max charge current 42 A 165 A 123 A faster charging
Weight 48.0 kg 90.0 kg 42.0 kg lighter
Weight per kW 1.2 kg/kW 2.2 kg/kW 1.1 kg/kW lighter
Max efficiency 98.6 % 98.1 % 0.5 pp more efficient
Start voltage 160 V 195 V 35 V earlier start
MPPT voltage range 200-1000 V 180-1000 V 200-1000 V vs 180-1000 V
Battery voltage 600-980 V 200-900V 600-980 V vs 200-900V
Dimensions 570x680x256 mm 585x920x320 mm 570x680x256 mm vs 585x920x320 mm
02

Full specification

Parameter MID 40K-HU WIT 40K-XHU Difference
AC output
Rated AC power 40.00 kW 40.00 kW Same
Max AC power 40.00 kW 40.00 kW Same
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 400 V Same
Max AC current 66.7 A 66.7 A Same
PV input
Max PV power 80.00 kW 80.00 kW Same
DC/AC ratio 2.00 2.00 Same
Max DC voltage 1000 V 1100 V 100 V apart
MPPT voltage range 200-1000 V 180-1000 V 200-1000 V vs 180-1000 V
Start voltage 160 V 195 V -35 V for MID 40K-HU
MPP trackers - 4 Not published by Growatt
Strings per tracker 2 2 Same
Max input current per tracker 40.0 A 40.0 A Same
Efficiency
European efficiency 97.2 % - Not published by Growatt
Max efficiency 98.6 % 98.1 % +0.5 pp for MID 40K-HU
CEC efficiency - - Neither datasheet publishes this
Battery
Battery input Yes Yes Same
Battery voltage 600-980 V 200-900V 600-980 V vs 200-900V
Max charge current 42 A 165 A +123 A for WIT 40K-XHU
Backup power 30.0 kW - Not published by Growatt
Physical
Weight 48.0 kg 90.0 kg -42.0 kg for MID 40K-HU
Weight per kW 1.2 kg/kW 2.2 kg/kW -1.1 kg/kW for MID 40K-HU
Dimensions 570x680x256 mm 585x920x320 mm 570x680x256 mm vs 585x920x320 mm
Ingress protection IP66 IP66 Same
Cooling forced-air forced-air Same
Noise 55 dB 55 dB Same
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi Yes Yes Same
Ethernet - Yes Not published by Growatt
Arc fault protection Yes - Not published by Growatt
Integrated DC switch Yes - Not published by Growatt
Warranty
Warranty 5 yrs 5 yrs Same
03

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04

Written summary

Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate.