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SG250HX-20 vs MAX 250KTL3-X HV 13 of 19 identical Swap Change inverters

Sungrow SG250HX-20 vs Growatt MAX 250KTL3-X HV

Sungrow SG250HX-20
Sungrow
SG250HX-20
250 kW 98.8 % euro Grid-tie
Open inverter page Datasheet PDF
VS
Growatt MAX 250KTL3-X HV
Growatt
MAX 250KTL3-X HV
250 kW 98.7 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

6 differences, and they point both ways

The largest is max input current per tracker: 35.0 A more headroom. 13 of 19 comparable parameters are identical, with 13 more left out because at least one datasheet does not publish them.

See all 6 differences
How alike are they
13 of 19 comparable
parameters are identical
identical differs not published
01

What actually differs

6 of 19 parameters
Parameter SG250HX-20 MAX 250KTL3-X HV Difference
Max input current per tracker 65.0 A 30.0 A 35.0 A more headroom
Weight 106.0 kg 99.0 kg 7.0 kg lighter
Max AC current 198.5 A 180.4 A 18.1 A apart
Start voltage 550 V 500 V 50 V earlier start
Strings per tracker 4 2 2 strings apart
Dimensions 779x1148x371 mm 675x1070x340 mm 779x1148x371 mm vs 675x1070x340 mm
02

Full specification

Parameter SG250HX-20 MAX 250KTL3-X HV Difference
AC output
Rated AC power 250.00 kW 250.00 kW Same
Max AC power 250.00 kW 250.00 kW Same
Grid connection 3-phase 3-phase Same
Nominal AC voltage 800 V 800 V Same
Max AC current 198.5 A 180.4 A 18.1 A apart
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 500 V -50 V for MAX 250KTL3-X HV
MPP trackers 6 - Not published by Growatt
Strings per tracker 4 2 2 strings apart
Max input current per tracker 65.0 A 30.0 A +35.0 A for SG250HX-20
Efficiency
European efficiency 98.8 % 98.7 % Effectively the same
Max efficiency 99.0 % 99.0 % 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 106.0 kg 99.0 kg -7.0 kg for MAX 250KTL3-X HV
Weight per kW 0.4 kg/kW 0.4 kg/kW Same
Dimensions 779x1148x371 mm 675x1070x340 mm 779x1148x371 mm vs 675x1070x340 mm
Ingress protection IP66 IP66 Same
Cooling forced-air forced-air Same
Noise - - Neither datasheet publishes this
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi - Yes Not published by Sungrow
Ethernet - - Neither datasheet publishes this
Arc fault protection - - Neither datasheet publishes this
Integrated DC switch Yes Yes Same
Warranty
Warranty - 5 yrs Not published by Sungrow
03

More useful comparisons

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9 differences, the largest is rated ac power
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Sungrow SG250HX-20 vs Solis-255K-EHV-5G-PLUS
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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.