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- Three Phase Inverter for 277/480V Grid vs with DC Safety Unit (optional) 22 of 24 identical Swap Change inverters

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

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
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

- Three Phase Inverter for 277/480V Grid leads on the differences that matter

The largest is weight: 3.0 kg lighter. 22 of 24 comparable parameters are identical, with 8 more left out because at least one datasheet does not publish them.

See all 2 differences
How alike are they
22 of 24 comparable
parameters are identical
identical differs not published
01

What actually differs

2 of 24 parameters
Parameter - Three Phase Inverter for 277/480V Grid with DC Safety Unit (optional) Difference
Weight 45.0 kg 48.0 kg 3.0 kg lighter
Dimensions 540x315x260 mm 775x315x260 mm 540x315x260 mm vs 775x315x260 mm
02

Full specification

Parameter - Three Phase Inverter for 277/480V Grid 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 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 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 40.0 A Same
Efficiency
European efficiency 98.0 % 98.0 % Same
Max efficiency 98.1 % 98.1 % 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 45.0 kg 48.0 kg -3.0 kg for - Three Phase Inverter for 277/480V Grid
Weight per kW 1.4 kg/kW 1.4 kg/kW Same
Dimensions 540x315x260 mm 775x315x260 mm 540x315x260 mm vs 775x315x260 mm
Ingress protection IP65 IP65 Same
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 Yes Same
Ethernet Yes Yes Same
Arc fault protection Yes Yes Same
Integrated DC switch Yes Yes Same
Warranty
Warranty 20 yrs 20 yrs Same
03

More useful comparisons

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SolarEdge SE33.3K (K33.3SE) - Three Phase Inverter for 277/480V Grid vs SolarEdge SE33.3K
7 differences, the largest is max pv power
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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
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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.