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SG33CX-P2 vs SUN-33K-G03 6 of 21 identical Swap Change inverters

Sungrow SG33CX-P2 vs Deye SUN-33K-G03

Sungrow SG33CX-P2
Sungrow
SG33CX-P2
33 kW 98.3 % euro Grid-tie
Open inverter page Datasheet PDF
VS
Deye SUN-33K-G03
Deye
SUN-33K-G03
33 kW 98.0 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

15 differences, and they point both ways

The largest is max dc voltage: 100 V apart. 6 of 21 comparable parameters are identical, with 11 more left out because at least one datasheet does not publish them.

See all 15 differences
How alike are they
6 of 21 comparable
parameters are identical
identical differs not published
01

What actually differs

15 of 21 parameters
Parameter SG33CX-P2 SUN-33K-G03 Difference
Max DC voltage 1100 V 1000 V 100 V apart
Max input current per tracker 30.0 A 40.0 A 10.0 A more headroom
Max AC power 33.00 kW 36.30 kW 3.30 kW apart
Max PV power 46.20 kW 42.90 kW 3.30 kW apart
Weight 38.0 kg 44.5 kg 6.5 kg lighter
European efficiency 98.3 % 98.0 % 0.3 pp more efficient
Max AC current 55.2 A 52.8 A 2.4 A apart
Start voltage 200 V 250 V 50 V earlier start
MPP trackers 3 4 1 tracker more
Max operating temperature 60 °C 65 °C 5 °C more heat tolerant
DC/AC ratio 1.40 1.30 0.10 more oversizing headroom
Max efficiency 98.5 % 98.7 % 0.2 pp more efficient
Ingress protection IP66 IP65 IP66 vs IP65
MPPT voltage range 160-1000 V 200-850 V 160-1000 V vs 200-850 V
Dimensions 575x645x245 mm 537x648x304 mm 575x645x245 mm vs 537x648x304 mm
02

Full specification

Parameter SG33CX-P2 SUN-33K-G03 Difference
AC output
Rated AC power 33.00 kW 33.00 kW Same
Max AC power 33.00 kW 36.30 kW 3.30 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 400 V Same
Max AC current 55.2 A 52.8 A 2.4 A apart
PV input
Max PV power 46.20 kW 42.90 kW 3.30 kW apart
DC/AC ratio 1.40 1.30 +0.10 for SG33CX-P2
Max DC voltage 1100 V 1000 V 100 V apart
MPPT voltage range 160-1000 V 200-850 V 160-1000 V vs 200-850 V
Start voltage 200 V 250 V -50 V for SG33CX-P2
MPP trackers 3 4 +1 trackers for SUN-33K-G03
Strings per tracker 2 - Not published by Deye
Max input current per tracker 30.0 A 40.0 A +10.0 A for SUN-33K-G03
Efficiency
European efficiency 98.3 % 98.0 % +0.3 pp for SG33CX-P2
Max efficiency 98.5 % 98.7 % +0.2 pp for SUN-33K-G03
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 38.0 kg 44.5 kg -6.5 kg for SG33CX-P2
Weight per kW 1.2 kg/kW 1.3 kg/kW Effectively the same
Dimensions 575x645x245 mm 537x648x304 mm 575x645x245 mm vs 537x648x304 mm
Ingress protection IP66 IP65 IP66 vs IP65
Cooling forced-air forced-air Same
Noise - 45 dB Not published by Sungrow
Max operating temperature 60 °C 65 °C +5 °C for SUN-33K-G03
Connectivity and safety
Wi-Fi - Yes Not published by Sungrow
Ethernet - Yes Not published by Sungrow
Arc fault protection Yes - Not published by Deye
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.