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SE12.5K vs Fronius Primo 12.5-1 8 of 17 identical Swap Change inverters

SolarEdge SE12.5K vs Fronius Primo 12.5-1

SolarEdge SE12.5K
SolarEdge
SE12.5K
12.5 kW 97.7 % euro Grid-tie
Open inverter page Datasheet PDF
VS
Fronius Primo 12.5-1
Fronius International
Fronius Primo 12.5-1
12.5 kW Grid-tie
Open inverter page Datasheet PDF
The verdict

SE12.5K leads on the differences that matter

The largest is warranty: 10 yrs longer. 8 of 17 comparable parameters are identical, with 15 more left out because at least one datasheet does not publish them.

See all 9 differences
How alike are they
8 of 17 comparable
parameters are identical
identical differs not published
01

What actually differs

9 of 17 parameters
Parameter SE12.5K Fronius Primo 12.5-1 Difference
Warranty 20 yrs 10 yrs 10 yrs longer
Max efficiency 98.0 % 96.7 % 1.3 pp more efficient
Weight 30.7 kg 37.4 kg 6.7 kg lighter
Weight per kW 2.5 kg/kW 3.0 kg/kW 0.5 kg/kW lighter
Grid connection 3-phase Single-phase 3-phase vs Single-phase
Nominal AC voltage 400 V 240 V 160 V apart
Max AC current 20.0 A 52.1 A 32.1 A apart
Ingress protection IP65 NEMA 4X IP65 vs NEMA 4X
Dimensions 549x317x264 mm 724x511x226 mm 549x317x264 mm vs 724x511x226 mm
02

Full specification

Parameter SE12.5K Fronius Primo 12.5-1 Difference
AC output
Rated AC power 12.50 kW 12.50 kW Same
Max AC power 12.50 kW 12.50 kW Same
Grid connection 3-phase Single-phase 3-phase vs Single-phase
Nominal AC voltage 400 V 240 V 160 V apart
Max AC current 20.0 A 52.1 A 32.1 A apart
PV input
Max PV power 16.85 kW - Not published by Fronius International
DC/AC ratio 1.35 - Not published by Fronius International
Max DC voltage 1000 V 1000 V Same
MPPT voltage range - 200-800 V Not published by SolarEdge
Start voltage - 80 V Not published by SolarEdge
MPP trackers - 2 Not published by SolarEdge
Strings per tracker - - Neither datasheet publishes this
Max input current per tracker - 33.0 A Not published by SolarEdge
Efficiency
European efficiency 97.7 % - Not published by Fronius International
Max efficiency 98.0 % 96.7 % +1.3 pp for SE12.5K
CEC efficiency - 96.5 % Not published by SolarEdge
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 30.7 kg 37.4 kg -6.7 kg for SE12.5K
Weight per kW 2.5 kg/kW 3.0 kg/kW -0.5 kg/kW for SE12.5K
Dimensions 549x317x264 mm 724x511x226 mm 549x317x264 mm vs 724x511x226 mm
Ingress protection IP65 NEMA 4X IP65 vs NEMA 4X
Cooling forced-air forced-air Same
Noise 50 dB - Not published by Fronius International
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 10 yrs +10 yrs for SE12.5K
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.