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SolarEdge TerraMax Inverter SE330K vs MAX 320K-X 10 of 19 identical Swap Change inverters

SolarEdge TerraMax Inverter SE330K vs Growatt MAX 320K-X

SolarEdge
SolarEdge TerraMax Inverter SE330K
330 kW 98.8 % euro Grid-tie
Open inverter page Datasheet PDF
VS
Growatt MAX 320K-X
Growatt
MAX 320K-X
320 kW 98.5 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

SolarEdge TerraMax Inverter SE330K leads on the differences that matter

The largest is rated ac power: 10.00 kW apart. 10 of 19 comparable parameters are identical, with 13 more left out because at least one datasheet does not publish them.

See all 9 differences
How alike are they
10 of 19 comparable
parameters are identical
identical differs not published
01

What actually differs

9 of 19 parameters
Parameter SolarEdge TerraMax Inverter SE330K MAX 320K-X Difference
Rated AC power 330.00 kW 320.00 kW 10.00 kW apart
Max AC power 330.00 kW 352.00 kW 22.00 kW apart
Max PV power 660.00 kW 480.00 kW 180.00 kW apart
DC/AC ratio 2.00 1.50 0.50 more oversizing headroom
Weight 175.0 kg 126.0 kg 49.0 kg lighter
European efficiency 98.8 % 98.5 % 0.3 pp more efficient
Nominal AC voltage 690 V 800 V 110 V apart
Max AC current 276.1 A 230.9 A 45.2 A apart
Dimensions 914x1090x416 mm 790x1145x371 mm 914x1090x416 mm vs 790x1145x371 mm
02

Full specification

Parameter SolarEdge TerraMax Inverter SE330K MAX 320K-X Difference
AC output
Rated AC power 330.00 kW 320.00 kW 10.00 kW apart
Max AC power 330.00 kW 352.00 kW 22.00 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 690 V 800 V 110 V apart
Max AC current 276.1 A 230.9 A 45.2 A apart
PV input
Max PV power 660.00 kW 480.00 kW 180.00 kW apart
DC/AC ratio 2.00 1.50 +0.50 for SolarEdge TerraMax Inverter SE330K
Max DC voltage 1500 V 1500 V Same
MPPT voltage range - 500-1500 V Not published by SolarEdge
Start voltage - 500 V Not published by SolarEdge
MPP trackers - 6 Not published by SolarEdge
Strings per tracker - 5 Not published by SolarEdge
Max input current per tracker - 80.0 A Not published by SolarEdge
Efficiency
European efficiency 98.8 % 98.5 % +0.3 pp for SolarEdge TerraMax Inverter SE330K
Max efficiency 99.2 % 99.0 % 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 175.0 kg 126.0 kg -49.0 kg for MAX 320K-X
Weight per kW 0.5 kg/kW 0.4 kg/kW Effectively the same
Dimensions 914x1090x416 mm 790x1145x371 mm 914x1090x416 mm vs 790x1145x371 mm
Ingress protection IP66 IP66 Same
Cooling forced-air forced-air Same
Noise 72 dB - Not published by Growatt
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi Yes Yes Same
Ethernet Yes - Not published by Growatt
Arc fault protection - Yes Not published by SolarEdge
Integrated DC switch Yes Yes Same
Warranty
Warranty 5 yrs 5 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.