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0RT-20 vs 0RS 6 of 20 identical Swap Change inverters

Sungrow SG8.0RT-20 vs Sungrow SG8.0RS

Sungrow SG8.0RT-20
Sungrow
SG8.0RT-20
8 kW 98.0 % euro Grid-tie
Open inverter page Datasheet PDF
VS
Sungrow SG8.0RS
Sungrow
SG8.0RS
8 kW 97.3 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

0RT-20 leads on the differences that matter

The largest is european efficiency: 0.7 pp more efficient. 6 of 20 comparable parameters are identical, with 12 more left out because at least one datasheet does not publish them.

See all 14 differences
How alike are they
6 of 20 comparable
parameters are identical
identical differs not published
01

What actually differs

14 of 20 parameters
Parameter 0RT-20 0RS Difference
European efficiency 98.0 % 97.3 % 0.7 pp more efficient
Max DC voltage 1100 V 600 V 500 V apart
Max input current per tracker 25.0 A 16.0 A 9.0 A more headroom
Max efficiency 98.5 % 97.8 % 0.7 pp more efficient
Weight 17.0 kg 19.0 kg 2.0 kg lighter
Grid connection 3-phase Single-phase 3-phase vs Single-phase
Nominal AC voltage 400 V 230 V 170 V apart
Max AC current 13.3 A 36.4 A 23.1 A apart
Start voltage 180 V 50 V 130 V earlier start
MPP trackers 2 3 1 tracker more
Weight per kW 2.1 kg/kW 2.4 kg/kW 0.2 kg/kW lighter
MPPT voltage range 160-1000 V 40-560 V 160-1000 V vs 40-560 V
Dimensions 480x370x195 mm 340x490x170 mm 480x370x195 mm vs 340x490x170 mm
Cooling forced-air natural forced-air vs natural
02

Full specification

Parameter 0RT-20 0RS Difference
AC output
Rated AC power 8.00 kW 8.00 kW Same
Max AC power 8.00 kW 8.00 kW Same
Grid connection 3-phase Single-phase 3-phase vs Single-phase
Nominal AC voltage 400 V 230 V 170 V apart
Max AC current 13.3 A 36.4 A 23.1 A apart
PV input
Max PV power - 12.00 kW Not published by Sungrow
DC/AC ratio - 1.50 Not published by Sungrow
Max DC voltage 1100 V 600 V 500 V apart
MPPT voltage range 160-1000 V 40-560 V 160-1000 V vs 40-560 V
Start voltage 180 V 50 V -130 V for 0RS
MPP trackers 2 3 +1 trackers for 0RS
Strings per tracker 1 1 Same
Max input current per tracker 25.0 A 16.0 A +9.0 A for 0RT-20
Efficiency
European efficiency 98.0 % 97.3 % +0.7 pp for 0RT-20
Max efficiency 98.5 % 97.8 % +0.7 pp for 0RT-20
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 17.0 kg 19.0 kg -2.0 kg for 0RT-20
Weight per kW 2.1 kg/kW 2.4 kg/kW -0.2 kg/kW for 0RT-20
Dimensions 480x370x195 mm 340x490x170 mm 480x370x195 mm vs 340x490x170 mm
Ingress protection IP65 IP65 Same
Cooling forced-air natural forced-air vs natural
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.