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

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

Fronius Symo 17.5-3 480
Fronius International
Fronius Symo 17.5-3 480
17.495 kW Grid-tie
Open inverter page Datasheet PDF
VS
SolarEdge SE17.3KUS
SolarEdge
SE17.3KUS
17.3 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 Fronius Symo 17.5-3 480 SE17.3KUS Difference
Rated AC power 17.50 kW 17.30 kW 0.20 kW apart
Max DC voltage 1000 V 600 V 400 V apart
Weight 43.4 kg 35.5 kg 7.9 kg lighter
Max AC power 17.50 kW 17.30 kW 0.20 kW apart
Weight per kW 2.5 kg/kW 2.1 kg/kW 0.4 kg/kW lighter
Max AC current 21.0 A 48.2 A 27.2 A apart
Ingress protection NEMA 4X NEMA 3R NEMA 4X vs NEMA 3R
Dimensions 724x511x226 mm 808x317x300 mm 724x511x226 mm vs 808x317x300 mm
02

Full specification

Parameter Fronius Symo 17.5-3 480 SE17.3KUS Difference
AC output
Rated AC power 17.50 kW 17.30 kW 0.20 kW apart
Max AC power 17.50 kW 17.30 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 21.0 A 48.2 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 1000 V 600 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 43.4 kg 35.5 kg -7.9 kg for SE17.3KUS
Weight per kW 2.5 kg/kW 2.1 kg/kW -0.4 kg/kW for SE17.3KUS
Dimensions 724x511x226 mm 808x317x300 mm 724x511x226 mm vs 808x317x300 mm
Ingress protection NEMA 4X NEMA 3R NEMA 4X vs NEMA 3R
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.