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SG6.0RT vs SG8.0RT-20 16 of 20 identical Swap Change inverters

Sungrow SG6.0RT vs Sungrow SG8.0RT-20

Sungrow SG6.0RT
Sungrow
SG6.0RT
8 kW 97.8 % euro Grid-tie
Open inverter page Datasheet PDF
VS
Sungrow SG8.0RT-20
Sungrow
SG8.0RT-20
8 kW 98.0 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

SG8.0RT-20 leads on the differences that matter

The largest is max ac power: 0.80 kW apart. 16 of 20 comparable parameters are identical, with 12 more left out because at least one datasheet does not publish them.

See all 4 differences
How alike are they
16 of 20 comparable
parameters are identical
identical differs not published
01

What actually differs

4 of 20 parameters
Parameter SG6.0RT SG8.0RT-20 Difference
Max AC power 8.80 kW 8.00 kW 0.80 kW apart
European efficiency 97.8 % 98.0 % 0.2 pp more efficient
Weight 18.0 kg 17.0 kg 1.0 kg lighter
Strings per tracker 2 1 1 string apart
02

Full specification

Parameter SG6.0RT SG8.0RT-20 Difference
AC output
Rated AC power 8.00 kW 8.00 kW Same
Max AC power 8.80 kW 8.00 kW 0.80 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 400 V Same
Max AC current 13.3 A 13.3 A Same
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 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 2 1 1 string apart
Max input current per tracker 25.0 A 25.0 A Same
Efficiency
European efficiency 97.8 % 98.0 % +0.2 pp for SG8.0RT-20
Max efficiency 98.5 % 98.5 % 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 18.0 kg 17.0 kg -1.0 kg for SG8.0RT-20
Weight per kW 2.2 kg/kW 2.1 kg/kW Effectively the 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.