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MID 33KTL3-X2 vs SG33CX 12 of 18 identical Swap Change inverters

Growatt MID 33KTL3-X2 vs Sungrow SG33CX

Growatt MID 33KTL3-X2
Growatt
MID 33KTL3-X2
33 kW Grid-tie
Open inverter page Datasheet PDF
VS
Sungrow SG33CX
Sungrow
SG33CX
33 kW 98.3 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

MID 33KTL3-X2 leads on the differences that matter

The largest is max input current per tracker: 6.0 A more headroom. 12 of 18 comparable parameters are identical, with 14 more left out because at least one datasheet does not publish them.

See all 6 differences
How alike are they
12 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

6 of 18 parameters
Parameter MID 33KTL3-X2 SG33CX Difference
Max input current per tracker 32.0 A 26.0 A 6.0 A more headroom
Max AC power 36.60 kW 36.30 kW 0.30 kW apart
Weight 31.0 kg 50.0 kg 19.0 kg lighter
Weight per kW 0.9 kg/kW 1.5 kg/kW 0.6 kg/kW lighter
Max efficiency 98.8 % 98.6 % 0.2 pp more efficient
Dimensions 435x580x230 mm 595x702x310 mm 435x580x230 mm vs 595x702x310 mm
02

Full specification

Parameter MID 33KTL3-X2 SG33CX Difference
AC output
Rated AC power 33.00 kW 33.00 kW Same
Max AC power 36.60 kW 36.30 kW 0.30 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 400 V Same
Max AC current 55.5 A 55.2 A Effectively the same
PV input
Max PV power 49.50 kW - Not published by Sungrow
DC/AC ratio 1.50 - Not published by Sungrow
Max DC voltage 1100 V 1100 V Same
MPPT voltage range 200-1000 V 200-1000 V Same
Start voltage 250 V 250 V Same
MPP trackers - - Neither datasheet publishes this
Strings per tracker 2 2 Same
Max input current per tracker 32.0 A 26.0 A +6.0 A for MID 33KTL3-X2
Efficiency
European efficiency - 98.3 % Not published by Growatt
Max efficiency 98.8 % 98.6 % +0.2 pp for MID 33KTL3-X2
CEC efficiency - - Neither datasheet publishes this
Battery
Battery input - - Neither datasheet publishes this
Battery voltage - - Neither datasheet publishes this
Max charge current - - Neither datasheet publishes this
Backup power - - Neither datasheet publishes this
Physical
Weight 31.0 kg 50.0 kg -19.0 kg for MID 33KTL3-X2
Weight per kW 0.9 kg/kW 1.5 kg/kW -0.6 kg/kW for MID 33KTL3-X2
Dimensions 435x580x230 mm 595x702x310 mm 435x580x230 mm vs 595x702x310 mm
Ingress protection IP66 IP66 Same
Cooling forced-air forced-air Same
Noise - - Neither datasheet publishes this
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi Yes - Not published by Sungrow
Ethernet Yes - Not published by Sungrow
Arc fault protection Yes - Not published by Sungrow
Integrated DC switch Yes Yes Same
Warranty
Warranty 5 yrs - Not published by Sungrow
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.