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SG17T-CN vs SG17RT-20 14 of 19 identical Swap Change inverters

Sungrow SG17T-CN vs Sungrow SG17RT-20

Sungrow SG17T-CN
Sungrow
SG17T-CN
17 kW 98.1 % euro Grid-tie
Open inverter page Datasheet PDF
VS
Sungrow SG17RT-20
Sungrow
SG17RT-20
17 kW 98.2 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

SG17RT-20 leads on the differences that matter

The largest is max input current per tracker: 5.0 A more headroom. 14 of 19 comparable parameters are identical, with 13 more left out because at least one datasheet does not publish them.

See all 5 differences
How alike are they
14 of 19 comparable
parameters are identical
identical differs not published
01

What actually differs

5 of 19 parameters
Parameter SG17T-CN SG17RT-20 Difference
Max input current per tracker 20.0 A 25.0 A 5.0 A more headroom
Max AC power 18.70 kW 17.00 kW 1.70 kW apart
Max efficiency 98.3 % 98.6 % 0.3 pp more efficient
Weight 21.0 kg 20.0 kg 1.0 kg lighter
Dimensions 530x410x208 mm 480x370x195 mm 530x410x208 mm vs 480x370x195 mm
02

Full specification

Parameter SG17T-CN SG17RT-20 Difference
AC output
Rated AC power 17.00 kW 17.00 kW Same
Max AC power 18.70 kW 17.00 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 - - Neither datasheet publishes this
DC/AC ratio - - Neither datasheet publishes this
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 1 Same
Max input current per tracker 20.0 A 25.0 A +5.0 A for SG17RT-20
Efficiency
European efficiency 98.1 % 98.2 % Effectively the same
Max efficiency 98.3 % 98.6 % +0.3 pp for SG17RT-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 21.0 kg 20.0 kg -1.0 kg for SG17RT-20
Weight per kW 1.2 kg/kW 1.2 kg/kW Same
Dimensions 530x410x208 mm 480x370x195 mm 530x410x208 mm vs 480x370x195 mm
Ingress protection IP65 IP65 Same
Cooling - forced-air Not published by Sungrow
Noise - - Neither datasheet publishes this
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi - - Neither datasheet publishes this
Ethernet - - Neither datasheet publishes this
Arc fault protection - - Neither datasheet publishes this
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.