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

Fronius Primo 12.5-1 vs SolarEdge SE12.5K

Fronius Primo 12.5-1
Fronius International
Fronius Primo 12.5-1
12.5 kW Grid-tie
Open inverter page Datasheet PDF
VS
SolarEdge SE12.5K
SolarEdge
SE12.5K
12.5 kW 97.7 % euro 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 Fronius Primo 12.5-1 SE12.5K Difference
Warranty 10 yrs 20 yrs 10 yrs longer
Max efficiency 96.7 % 98.0 % 1.3 pp more efficient
Weight 37.4 kg 30.7 kg 6.7 kg lighter
Weight per kW 3.0 kg/kW 2.5 kg/kW 0.5 kg/kW lighter
Grid connection Single-phase 3-phase Single-phase vs 3-phase
Nominal AC voltage 240 V 400 V 160 V apart
Max AC current 52.1 A 20.0 A 32.1 A apart
Ingress protection NEMA 4X IP65 NEMA 4X vs IP65
Dimensions 724x511x226 mm 549x317x264 mm 724x511x226 mm vs 549x317x264 mm
02

Full specification

Parameter Fronius Primo 12.5-1 SE12.5K 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 Single-phase 3-phase Single-phase vs 3-phase
Nominal AC voltage 240 V 400 V 160 V apart
Max AC current 52.1 A 20.0 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 96.7 % 98.0 % +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 37.4 kg 30.7 kg -6.7 kg for SE12.5K
Weight per kW 3.0 kg/kW 2.5 kg/kW -0.5 kg/kW for SE12.5K
Dimensions 724x511x226 mm 549x317x264 mm 724x511x226 mm vs 549x317x264 mm
Ingress protection NEMA 4X IP65 NEMA 4X vs IP65
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 10 yrs 20 yrs +10 yrs for SE12.5K
03

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Fronius Primo 12.5-1 vs Fronius International Symo Advanced 12.5-3-M
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Fronius Primo 12.5-1 vs Fronius Symo 12.5-3 480
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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.