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SE20KUS (KUS20SE) vs Fronius Verto 20.0 11 of 18 identical Swap Change inverters

SolarEdge SE20KUS (KUS20SE) vs Fronius Verto 20.0

SolarEdge SE20KUS (KUS20SE)
SolarEdge
SE20KUS (KUS20SE)
20 kW Grid-tie
Open inverter page Datasheet PDF
VS
Fronius Verto 20.0
Fronius International
Fronius Verto 20.0
20 kW 98.3 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

7 differences, and they point both ways

The largest is max pv power: 3.00 kW apart. 11 of 18 comparable parameters are identical, with 14 more left out because at least one datasheet does not publish them.

See all 7 differences
How alike are they
11 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

7 of 18 parameters
Parameter SE20KUS (KUS20SE) Fronius Verto 20.0 Difference
Max PV power 27.00 kW 30.00 kW 3.00 kW apart
Weight 33.2 kg 35.2 kg 2.0 kg lighter
DC/AC ratio 1.35 1.50 0.15 more oversizing headroom
Nominal AC voltage 480 V 400 V 80 V apart
Max AC current 24.0 A 30.3 A 6.3 A apart
Ingress protection NEMA 3R IP66 NEMA 3R vs IP66
Dimensions 540x315x260 mm 730x540x278 mm 540x315x260 mm vs 730x540x278 mm
02

Full specification

Parameter SE20KUS (KUS20SE) Fronius Verto 20.0 Difference
AC output
Rated AC power 20.00 kW 20.00 kW Same
Max AC power 20.00 kW 20.00 kW Same
Grid connection 3-phase 3-phase Same
Nominal AC voltage 480 V 400 V 80 V apart
Max AC current 24.0 A 30.3 A 6.3 A apart
PV input
Max PV power 27.00 kW 30.00 kW 3.00 kW apart
DC/AC ratio 1.35 1.50 +0.15 for Fronius Verto 20.0
Max DC voltage 1000 V 1000 V Same
MPPT voltage range - 150-870 V Not published by SolarEdge
Start voltage - 150 V Not published by SolarEdge
MPP trackers - 4 Not published by SolarEdge
Strings per tracker - 2 Not published by SolarEdge
Max input current per tracker - 28.0 A Not published by SolarEdge
Efficiency
European efficiency - 98.3 % Not published by SolarEdge
Max efficiency - 98.6 % Not published by SolarEdge
CEC efficiency 98.0 % - Not published by Fronius International
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 33.2 kg 35.2 kg -2.0 kg for SE20KUS (KUS20SE)
Weight per kW 1.7 kg/kW 1.8 kg/kW Effectively the same
Dimensions 540x315x260 mm 730x540x278 mm 540x315x260 mm vs 730x540x278 mm
Ingress protection NEMA 3R IP66 NEMA 3R vs IP66
Cooling forced-air forced-air Same
Noise 55 dB 56 dB Effectively the same
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi - Yes Not published by SolarEdge
Ethernet Yes Yes Same
Arc fault protection Yes Yes Same
Integrated DC switch Yes Yes Same
Warranty
Warranty 20 yrs - Not published by Fronius International
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.