Skip to main content
SolarEdge SE33.3K (K33.3SE) - Three Phase Inverter for 277/480V Grid vs SE33.3K 12 of 19 identical Swap Change inverters

SolarEdge SE33.3K (K33.3SE) - Three Phase Inverter for 277/480V Grid vs SolarEdge SE33.3K

SolarEdge
SolarEdge SE33.3K (K33.3SE) - Three Phase Inverter for 277/480V Grid
33.3 kW 98.0 % euro Grid-tie
Open inverter page Datasheet PDF
VS
SolarEdge SE33.3K
SolarEdge
SE33.3K
33.3 kW 98.0 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

SE33.3K leads on the differences that matter

The largest is max pv power: 8.27 kW apart. 12 of 19 comparable parameters are identical, with 13 more left out because at least one datasheet does not publish them.

See all 7 differences
How alike are they
12 of 19 comparable
parameters are identical
identical differs not published
01

What actually differs

7 of 19 parameters
Parameter SolarEdge SE33.3K (K33.3SE) - Three Phase Inverter for 277/480V Grid SE33.3K Difference
Max PV power 50.00 kW 58.27 kW 8.27 kW apart
DC/AC ratio 1.50 1.75 0.25 more oversizing headroom
Weight 45.0 kg 32.0 kg 13.0 kg lighter
Nominal AC voltage 480 V 400 V 80 V apart
Max AC current 40.0 A 48.2 A 8.2 A apart
Weight per kW 1.4 kg/kW 1.0 kg/kW 0.4 kg/kW lighter
Dimensions 540x315x260 mm 558x328x273 mm 540x315x260 mm vs 558x328x273 mm
02

Full specification

Parameter SolarEdge SE33.3K (K33.3SE) - Three Phase Inverter for 277/480V Grid SE33.3K 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 400 V 80 V apart
Max AC current 40.0 A 48.2 A 8.2 A apart
PV input
Max PV power 50.00 kW 58.27 kW 8.27 kW apart
DC/AC ratio 1.50 1.75 +0.25 for SE33.3K
Max DC voltage 1000 V 1000 V Same
MPPT voltage range 680-1000 V 680-1000 V Same
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 % 98.0 % Same
Max efficiency 98.1 % - Not published by SolarEdge
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 45.0 kg 32.0 kg -13.0 kg for SE33.3K
Weight per kW 1.4 kg/kW 1.0 kg/kW -0.4 kg/kW for SE33.3K
Dimensions 540x315x260 mm 558x328x273 mm 540x315x260 mm vs 558x328x273 mm
Ingress protection IP65 IP65 Same
Cooling forced-air forced-air Same
Noise 55 dB - Not published by SolarEdge
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 - Not published by SolarEdge
Warranty
Warranty 20 yrs - Not published by SolarEdge
03

More useful comparisons

Open all inverters
Same type, similar size
SolarEdge
SolarEdge SE33.3K (K33.3SE) - Three Phase Inverter for 277/480V Grid vs SolarEdge SE33.3K (K33.3SE) with DC Safety Unit (optional)
2 differences, the largest is weight
Same type, similar size
Fronius International
SolarEdge SE33.3K (K33.3SE) - Three Phase Inverter for 277/480V Grid vs Fronius Verto 33.3
8 differences, the largest is max input current per tracker
Same type, similar size
SolarEdge
SolarEdge SE33.3K (K33.3SE) - Three Phase Inverter for 277/480V Grid vs SolarEdge SE33.3KUS (KUS33.3SE)
3 differences, the largest is max pv power
04

Written summary

Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate.