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SG40CX vs SG40CX-P2 13 of 19 identical Swap Change inverters

Sungrow SG40CX vs Sungrow SG40CX-P2

Sungrow SG40CX
Sungrow
SG40CX
40 kW 98.3 % euro 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-P2 leads on the differences that matter

The largest is max input current per tracker: 4.0 A more headroom. 13 of 19 comparable parameters are identical, with 13 more left out because at least one datasheet does not publish them.

See all 6 differences
How alike are they
13 of 19 comparable
parameters are identical
identical differs not published
01

What actually differs

6 of 19 parameters
Parameter SG40CX SG40CX-P2 Difference
Max input current per tracker 26.0 A 30.0 A 4.0 A more headroom
Weight 58.0 kg 40.0 kg 18.0 kg lighter
Weight per kW 1.4 kg/kW 1.0 kg/kW 0.4 kg/kW lighter
Start voltage 250 V 200 V 50 V earlier start
MPPT voltage range 200-1000 V 160-1000 V 200-1000 V vs 160-1000 V
Dimensions 645x782x310 mm 575x645x245 mm 645x782x310 mm vs 575x645x245 mm
02

Full specification

Parameter SG40CX 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 400 V 400 V Same
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 200-1000 V 160-1000 V 200-1000 V vs 160-1000 V
Start voltage 250 V 200 V -50 V for SG40CX-P2
MPP trackers - 4 Not published by Sungrow
Strings per tracker 2 2 Same
Max input current per tracker 26.0 A 30.0 A +4.0 A for SG40CX-P2
Efficiency
European efficiency 98.3 % 98.3 % Same
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 58.0 kg 40.0 kg -18.0 kg for SG40CX-P2
Weight per kW 1.4 kg/kW 1.0 kg/kW -0.4 kg/kW for SG40CX-P2
Dimensions 645x782x310 mm 575x645x245 mm 645x782x310 mm vs 575x645x245 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 - - 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.