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SE17.3KUS vs Fronius Symo 17.5-3 480 8 of 16 identical Swap Change inverters

SolarEdge SE17.3KUS vs Fronius Symo 17.5-3 480

SolarEdge SE17.3KUS
SolarEdge
SE17.3KUS
17.3 kW Grid-tie
Open inverter page Datasheet PDF
VS
Fronius Symo 17.5-3 480
Fronius International
Fronius Symo 17.5-3 480
17.495 kW Grid-tie
Open inverter page Datasheet PDF
The verdict

SE17.3KUS leads on the differences that matter

The largest is rated ac power: 0.20 kW apart. 8 of 16 comparable parameters are identical, with 16 more left out because at least one datasheet does not publish them.

See all 8 differences
How alike are they
8 of 16 comparable
parameters are identical
identical differs not published
01

What actually differs

8 of 16 parameters
Parameter SE17.3KUS Fronius Symo 17.5-3 480 Difference
Rated AC power 17.30 kW 17.50 kW 0.20 kW apart
Max DC voltage 600 V 1000 V 400 V apart
Weight 35.5 kg 43.4 kg 7.9 kg lighter
Max AC power 17.30 kW 17.50 kW 0.20 kW apart
Weight per kW 2.1 kg/kW 2.5 kg/kW 0.4 kg/kW lighter
Max AC current 48.2 A 21.0 A 27.2 A apart
Ingress protection NEMA 3R NEMA 4X NEMA 3R vs NEMA 4X
Dimensions 808x317x300 mm 724x511x226 mm 808x317x300 mm vs 724x511x226 mm
02

Full specification

Parameter SE17.3KUS Fronius Symo 17.5-3 480 Difference
AC output
Rated AC power 17.30 kW 17.50 kW 0.20 kW apart
Max AC power 17.30 kW 17.50 kW 0.20 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 208 V - Not published by Fronius International
Max AC current 48.2 A 21.0 A 27.2 A apart
PV input
Max PV power 30.27 kW - Not published by Fronius International
DC/AC ratio 1.75 - Not published by Fronius International
Max DC voltage 600 V 1000 V 400 V apart
MPPT voltage range 370-600 V - Not published by Fronius International
Start voltage - 200 V Not published by SolarEdge
MPP trackers - - Neither datasheet publishes this
Strings per tracker - - Neither datasheet publishes this
Max input current per tracker - - Neither datasheet publishes this
Efficiency
European efficiency - - Neither datasheet publishes this
Max efficiency - 98.0 % Not published by SolarEdge
CEC efficiency 97.5 % 97.5 % Same
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 35.5 kg 43.4 kg -7.9 kg for SE17.3KUS
Weight per kW 2.1 kg/kW 2.5 kg/kW -0.4 kg/kW for SE17.3KUS
Dimensions 808x317x300 mm 724x511x226 mm 808x317x300 mm vs 724x511x226 mm
Ingress protection NEMA 3R NEMA 4X NEMA 3R vs NEMA 4X
Cooling forced-air forced-air Same
Noise 62 dB - Not published by Fronius International
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi Yes Yes Same
Ethernet Yes Yes Same
Arc fault protection Yes Yes Same
Integrated DC switch Yes Yes Same
Warranty
Warranty - 10 yrs Not published by SolarEdge
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.