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Fronius Verto 33.3 vs SE33.3KUS (KUS33.3SE) 11 of 18 identical Swap Change inverters

Fronius Verto 33.3 vs SolarEdge SE33.3KUS (KUS33.3SE)

Fronius Verto 33.3
Fronius International
Fronius Verto 33.3
33.3 kW 97.8 % euro Grid-tie
Open inverter page Datasheet PDF
VS
SolarEdge SE33.3KUS (KUS33.3SE)
SolarEdge
SE33.3KUS (KUS33.3SE)
33.3 kW Grid-tie
Open inverter page Datasheet PDF
The verdict

Fronius Verto 33.3 leads on the differences that matter

The largest is max pv power: 5.00 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 Fronius Verto 33.3 SE33.3KUS (KUS33.3SE) Difference
Max PV power 50.00 kW 45.00 kW 5.00 kW apart
Weight 41.8 kg 45.0 kg 3.2 kg lighter
DC/AC ratio 1.50 1.35 0.15 more oversizing headroom
Nominal AC voltage 400 V 480 V 80 V apart
Max AC current 50.5 A 40.0 A 10.5 A apart
Ingress protection IP66 NEMA 3R IP66 vs NEMA 3R
Dimensions 865x574x279 mm 540x315x260 mm 865x574x279 mm vs 540x315x260 mm
02

Full specification

Parameter Fronius Verto 33.3 SE33.3KUS (KUS33.3SE) Difference
AC output
Rated AC power 33.30 kW 33.30 kW Same
Max AC power 33.30 kW 33.30 kW Same
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 480 V 80 V apart
Max AC current 50.5 A 40.0 A 10.5 A apart
PV input
Max PV power 50.00 kW 45.00 kW 5.00 kW apart
DC/AC ratio 1.50 1.35 +0.15 for Fronius Verto 33.3
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 97.8 % - Not published by SolarEdge
Max efficiency 98.0 % - Not published by SolarEdge
CEC efficiency - 98.5 % 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 41.8 kg 45.0 kg -3.2 kg for Fronius Verto 33.3
Weight per kW 1.3 kg/kW 1.4 kg/kW Effectively the same
Dimensions 865x574x279 mm 540x315x260 mm 865x574x279 mm vs 540x315x260 mm
Ingress protection IP66 NEMA 3R IP66 vs NEMA 3R
Cooling forced-air forced-air Same
Noise 56 dB 55 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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Fronius Verto 33.3 vs SolarEdge SE33.3K
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Fronius Verto 33.3 vs SolarEdge SE33.3K (K33.3SE) - Three Phase Inverter for 277/480V Grid
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Fronius Verto 33.3 vs SolarEdge SE33.3K (K33.3SE) with DC Safety Unit (optional)
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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.