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SG17RT-20 vs SG17RT 17 of 20 identical Swap Change inverters

Sungrow SG17RT-20 vs Sungrow SG17RT

Sungrow SG17RT-20
Sungrow
SG17RT-20
17 kW 98.2 % euro Grid-tie
Open inverter page Datasheet PDF
VS
Sungrow SG17RT
Sungrow
SG17RT
17 kW 98.1 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

SG17RT-20 leads on the differences that matter

The largest is max ac power: 1.70 kW apart. 17 of 20 comparable parameters are identical, with 12 more left out because at least one datasheet does not publish them.

See all 3 differences
How alike are they
17 of 20 comparable
parameters are identical
identical differs not published
01

What actually differs

3 of 20 parameters
Parameter SG17RT-20 SG17RT Difference
Max AC power 17.00 kW 18.70 kW 1.70 kW apart
Weight 20.0 kg 21.0 kg 1.0 kg lighter
Strings per tracker 1 2 1 string apart
02

Full specification

Parameter SG17RT-20 SG17RT Difference
AC output
Rated AC power 17.00 kW 17.00 kW Same
Max AC power 17.00 kW 18.70 kW 1.70 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 400 V Same
Max AC current 28.3 A 28.3 A Same
PV input
Max PV power - 25.50 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 160-1000 V 160-1000 V Same
Start voltage 180 V 180 V Same
MPP trackers 2 2 Same
Strings per tracker 1 2 1 string apart
Max input current per tracker 25.0 A 25.0 A Same
Efficiency
European efficiency 98.2 % 98.1 % Effectively the 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 20.0 kg 21.0 kg -1.0 kg for SG17RT-20
Weight per kW 1.2 kg/kW 1.2 kg/kW Same
Dimensions 480x370x195 mm 480x370x195 mm Same
Ingress protection IP65 IP65 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.