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Fronius Verto 33.3 vs SolarEdge SE33.3K (K33.3SE) with DC Safety Unit (optional) 15 of 23 identical Swap Change inverters

Fronius Verto 33.3 vs SolarEdge SE33.3K (K33.3SE) with DC Safety Unit (optional)

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
SolarEdge SE33.3K (K33.3SE) with DC Safety Unit (optional)
33.3 kW 98.0 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

SolarEdge SE33.3K (K33.3SE) with DC Safety Unit (optional) leads on the differences that matter

The largest is max input current per tracker: 12.0 A more headroom. 15 of 23 comparable parameters are identical, with 9 more left out because at least one datasheet does not publish them.

See all 8 differences
How alike are they
15 of 23 comparable
parameters are identical
identical differs not published
01

What actually differs

8 of 23 parameters
Parameter Fronius Verto 33.3 SolarEdge SE33.3K (K33.3SE) with DC Safety Unit (optional) Difference
Max input current per tracker 28.0 A 40.0 A 12.0 A more headroom
Weight 41.8 kg 48.0 kg 6.2 kg lighter
European efficiency 97.8 % 98.0 % 0.2 pp more efficient
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 IP65 IP66 vs IP65
MPPT voltage range 150-870 V 680-1000 V 150-870 V vs 680-1000 V
Dimensions 865x574x279 mm 775x315x260 mm 865x574x279 mm vs 775x315x260 mm
02

Full specification

Parameter Fronius Verto 33.3 SolarEdge SE33.3K (K33.3SE) with DC Safety Unit (optional) 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 50.00 kW Same
DC/AC ratio 1.50 1.50 Same
Max DC voltage 1000 V 1000 V Same
MPPT voltage range 150-870 V 680-1000 V 150-870 V vs 680-1000 V
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 40.0 A +12.0 A for SolarEdge SE33.3K (K33.3SE) with DC Safety Unit (optional)
Efficiency
European efficiency 97.8 % 98.0 % +0.2 pp for SolarEdge SE33.3K (K33.3SE) with DC Safety Unit (optional)
Max efficiency 98.0 % 98.1 % Effectively the same
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 41.8 kg 48.0 kg -6.2 kg for Fronius Verto 33.3
Weight per kW 1.3 kg/kW 1.4 kg/kW Effectively the same
Dimensions 865x574x279 mm 775x315x260 mm 865x574x279 mm vs 775x315x260 mm
Ingress protection IP66 IP65 IP66 vs IP65
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 Yes Same
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.