Skip to main content
SG350HX-US vs SG320HX 16 of 19 identical Swap Change inverters

Sungrow SG350HX-US vs Sungrow SG320HX

Sungrow SG350HX-US
Sungrow
SG350HX-US
320 kW Grid-tie
VS
Sungrow SG320HX
Sungrow
SG320HX
320 kW Grid-tie
The verdict

SG320HX leads on the differences that matter

The largest is weight: 6.0 kg lighter. 16 of 19 comparable parameters are identical, with 13 more left out because at least one datasheet does not publish them.

See all 3 differences
How alike are they
16 of 19 comparable
parameters are identical
identical differs not published
01

What actually differs

3 of 19 parameters
Parameter SG350HX-US SG320HX Difference
Weight 122.0 kg 116.0 kg 6.0 kg lighter
Ingress protection IP66 (NEMA 4X) IP66 IP66 (NEMA 4X) vs IP66
Dimensions 870x1165x361 mm 870x1136x361 mm 870x1165x361 mm vs 870x1136x361 mm
02

Full specification

Parameter SG350HX-US SG320HX Difference
AC output
Rated AC power 320.00 kW 320.00 kW Same
Max AC power 352.00 kW 352.00 kW Same
Grid connection 3-phase 3-phase Same
Nominal AC voltage 800 V 800 V Same
Max AC current 254.0 A 254.0 A Same
PV input
Max PV power - - Neither datasheet publishes this
DC/AC ratio - - Neither datasheet publishes this
Max DC voltage 1500 V 1500 V Same
MPPT voltage range 500-1500 V 500-1500 V Same
Start voltage 550 V 550 V Same
MPP trackers 12 12 Same
Strings per tracker 2 2 Same
Max input current per tracker 40.0 A 40.0 A Same
Efficiency
European efficiency - - Neither datasheet publishes this
Max efficiency 99.0 % 99.0 % Same
CEC efficiency 98.5 % - Not published by Sungrow
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 122.0 kg 116.0 kg -6.0 kg for SG320HX
Weight per kW 0.4 kg/kW 0.4 kg/kW Same
Dimensions 870x1165x361 mm 870x1136x361 mm 870x1165x361 mm vs 870x1136x361 mm
Ingress protection IP66 (NEMA 4X) IP66 IP66 (NEMA 4X) vs IP66
Cooling forced-air forced-air Same
Noise - - Neither datasheet publishes this
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi - - Neither datasheet publishes this
Ethernet - - Neither datasheet publishes this
Arc fault protection - - Neither datasheet publishes this
Integrated DC switch Yes Yes Same
Warranty
Warranty - - Neither datasheet publishes this
03

More useful comparisons

Open all inverters
Same type, similar size
Growatt
Sungrow SG350HX-US vs Growatt MAX 320K-X
8 differences, the largest is mpp trackers
Same type, similar size
GoodWe
Sungrow SG350HX-US vs GoodWe GW320K-UT
6 differences, the largest is mpp trackers
Same type, similar size
GoodWe
Sungrow SG350HX-US vs GoodWe GW320KH-UT
6 differences, the largest is mpp trackers
04

Written summary

Checking cache...

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