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SG40CX-P3-CN vs SG40CX-P2 16 of 19 identical Swap Change inverters

Sungrow SG40CX-P3-CN vs Sungrow SG40CX-P2

Sungrow SG40CX-P3-CN
Sungrow
SG40CX-P3-CN
40 kW Grid-tie
Open inverter page Datasheet PDF
VS
Sungrow SG40CX-P2
Sungrow
SG40CX-P2
40 kW 98.3 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

SG40CX-P3-CN leads on the differences that matter

The largest is max input current per tracker: 10.0 A more headroom. 16 of 19 comparable parameters are identical, with 13 more left out because at least one datasheet does not publish them.

See all 3 differences
How alike are they
16 of 19 comparable
parameters are identical
identical differs not published
01

What actually differs

3 of 19 parameters
Parameter SG40CX-P3-CN SG40CX-P2 Difference
Max input current per tracker 40.0 A 30.0 A 10.0 A more headroom
Nominal AC voltage 380 V 400 V 20 V apart
Dimensions 595x645x245 mm 575x645x245 mm 595x645x245 mm vs 575x645x245 mm
02

Full specification

Parameter SG40CX-P3-CN SG40CX-P2 Difference
AC output
Rated AC power 40.00 kW 40.00 kW Same
Max AC power 44.00 kW 44.00 kW Same
Grid connection 3-phase 3-phase Same
Nominal AC voltage 380 V 400 V 20 V apart
Max AC current 66.9 A 66.9 A Same
PV input
Max PV power - 56.00 kW Not published by Sungrow
DC/AC ratio - 1.40 Not published by Sungrow
Max DC voltage 1100 V 1100 V Same
MPPT voltage range 160-1000 V 160-1000 V Same
Start voltage 200 V 200 V Same
MPP trackers 4 4 Same
Strings per tracker 2 2 Same
Max input current per tracker 40.0 A 30.0 A +10.0 A for SG40CX-P3-CN
Efficiency
European efficiency - 98.3 % Not published by Sungrow
Max efficiency 98.6 % 98.5 % 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 40.0 kg 40.0 kg Same
Weight per kW 1.0 kg/kW 1.0 kg/kW Same
Dimensions 595x645x245 mm 575x645x245 mm 595x645x245 mm vs 575x645x245 mm
Ingress protection IP66 IP66 Same
Cooling forced-air forced-air Same
Noise 60 dB - Not published by Sungrow
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 - - Neither datasheet publishes this
03

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Sungrow SG40CX-P3-CN vs Solis-40K
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Sungrow SG40CX-P2 vs Sungrow SG40CX
6 differences, the largest is max input current per tracker
04

Written summary

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