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SG33CX vs GW33K-SDT-CN-G40 11 of 18 identical Swap Change inverters

Sungrow SG33CX vs GoodWe GW33K-SDT-CN-G40

Sungrow SG33CX
Sungrow
SG33CX
33 kW 98.3 % euro Grid-tie
Open inverter page Datasheet PDF
VS
GoodWe GW33K-SDT-CN-G40
GoodWe
GW33K-SDT-CN-G40
33 kW Grid-tie
Open inverter page Datasheet PDF
The verdict

GW33K-SDT-CN-G40 leads on the differences that matter

The largest is max input current per tracker: 5.0 A more headroom. 11 of 18 comparable parameters are identical, with 14 more left out because at least one datasheet does not publish them.

See all 7 differences
How alike are they
11 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

7 of 18 parameters
Parameter SG33CX GW33K-SDT-CN-G40 Difference
Max input current per tracker 26.0 A 21.0 A 5.0 A more headroom
Weight 50.0 kg 19.0 kg 31.0 kg lighter
Weight per kW 1.5 kg/kW 0.6 kg/kW 0.9 kg/kW lighter
Nominal AC voltage 400 V 380 V 20 V apart
Start voltage 250 V 160 V 90 V earlier start
MPPT voltage range 200-1000 V 140-1000 V 200-1000 V vs 140-1000 V
Dimensions 595x702x310 mm 413x530x211 mm 595x702x310 mm vs 413x530x211 mm
02

Full specification

Parameter SG33CX GW33K-SDT-CN-G40 Difference
AC output
Rated AC power 33.00 kW 33.00 kW Same
Max AC power 36.30 kW 36.30 kW Same
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 380 V 20 V apart
Max AC current 55.2 A 55.0 A Effectively the same
PV input
Max PV power - - Neither datasheet publishes this
DC/AC ratio - - Neither datasheet publishes this
Max DC voltage 1100 V 1100 V Same
MPPT voltage range 200-1000 V 140-1000 V 200-1000 V vs 140-1000 V
Start voltage 250 V 160 V -90 V for GW33K-SDT-CN-G40
MPP trackers - 2 Not published by Sungrow
Strings per tracker 2 2 Same
Max input current per tracker 26.0 A 21.0 A +5.0 A for SG33CX
Efficiency
European efficiency 98.3 % - Not published by GoodWe
Max efficiency 98.6 % 98.7 % Effectively the same
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 50.0 kg 19.0 kg -31.0 kg for GW33K-SDT-CN-G40
Weight per kW 1.5 kg/kW 0.6 kg/kW -0.9 kg/kW for GW33K-SDT-CN-G40
Dimensions 595x702x310 mm 413x530x211 mm 595x702x310 mm vs 413x530x211 mm
Ingress protection IP66 IP66 Same
Cooling forced-air forced-air Same
Noise - 45 dB Not published by Sungrow
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi - - Neither datasheet publishes this
Ethernet - - Neither datasheet publishes this
Arc fault protection - - Neither datasheet publishes this
Integrated DC switch Yes Yes Same
Warranty
Warranty - - Neither datasheet publishes this
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.