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SE33.3KUS (KUS33.3SE) vs SolarEdge SE33.3K (K33.3SE) with DC Safety Unit (optional) 14 of 19 identical Swap Change inverters

SolarEdge SE33.3KUS (KUS33.3SE) vs SolarEdge SE33.3K (K33.3SE) with DC Safety Unit (optional)

SolarEdge SE33.3KUS (KUS33.3SE)
SolarEdge
SE33.3KUS (KUS33.3SE)
33.3 kW 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

5 differences, and they point both ways

The largest is max pv power: 5.00 kW apart. 14 of 19 comparable parameters are identical, with 13 more left out because at least one datasheet does not publish them.

See all 5 differences
How alike are they
14 of 19 comparable
parameters are identical
identical differs not published
01

What actually differs

5 of 19 parameters
Parameter SE33.3KUS (KUS33.3SE) SolarEdge SE33.3K (K33.3SE) with DC Safety Unit (optional) Difference
Max PV power 45.00 kW 50.00 kW 5.00 kW apart
Weight 45.0 kg 48.0 kg 3.0 kg lighter
DC/AC ratio 1.35 1.50 0.15 more oversizing headroom
Ingress protection NEMA 3R IP65 NEMA 3R vs IP65
Dimensions 540x315x260 mm 775x315x260 mm 540x315x260 mm vs 775x315x260 mm
02

Full specification

Parameter SE33.3KUS (KUS33.3SE) 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 480 V 480 V Same
Max AC current 40.0 A 40.0 A Same
PV input
Max PV power 45.00 kW 50.00 kW 5.00 kW apart
DC/AC ratio 1.35 1.50 +0.15 for SolarEdge SE33.3K (K33.3SE) with DC Safety Unit (optional)
Max DC voltage 1000 V 1000 V Same
MPPT voltage range - 680-1000 V Not published by SolarEdge
Start voltage - - Neither datasheet publishes this
MPP trackers - - Neither datasheet publishes this
Strings per tracker - - Neither datasheet publishes this
Max input current per tracker - 40.0 A Not published by SolarEdge
Efficiency
European efficiency - 98.0 % Not published by SolarEdge
Max efficiency - 98.1 % Not published by SolarEdge
CEC efficiency 98.5 % - Not published by SolarEdge
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 45.0 kg 48.0 kg -3.0 kg for SE33.3KUS (KUS33.3SE)
Weight per kW 1.4 kg/kW 1.4 kg/kW Same
Dimensions 540x315x260 mm 775x315x260 mm 540x315x260 mm vs 775x315x260 mm
Ingress protection NEMA 3R IP65 NEMA 3R vs IP65
Cooling forced-air forced-air Same
Noise 55 dB 55 dB 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 20 yrs Same
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.