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Fronius Primo 12.5-1 vs Symo Advanced 12.5-3-M 12 of 20 identical Swap Change inverters

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

Fronius Primo 12.5-1
Fronius International
Fronius Primo 12.5-1
12.5 kW Grid-tie
Open inverter page Datasheet PDF
VS
Fronius International Symo Advanced 12.5-3-M
Fronius International
Symo Advanced 12.5-3-M
12.5 kW 97.4 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

Symo Advanced 12.5-3-M leads on the differences that matter

The largest is max efficiency: 1.1 pp more efficient. 12 of 20 comparable parameters are identical, with 12 more left out because at least one datasheet does not publish them.

See all 8 differences
How alike are they
12 of 20 comparable
parameters are identical
identical differs not published
01

What actually differs

8 of 20 parameters
Parameter Fronius Primo 12.5-1 Symo Advanced 12.5-3-M Difference
Max efficiency 96.7 % 97.8 % 1.1 pp more efficient
Weight 37.4 kg 35.4 kg 2.0 kg 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 18.9 A 33.2 A apart
Start voltage 80 V 200 V 120 V earlier start
Ingress protection NEMA 4X IP66 NEMA 4X vs IP66
Dimensions 724x511x226 mm 725x510x225 mm 724x511x226 mm vs 725x510x225 mm
02

Full specification

Parameter Fronius Primo 12.5-1 Symo Advanced 12.5-3-M 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 18.9 A 33.2 A apart
PV input
Max PV power - 18.80 kW Not published by Fronius International
DC/AC ratio - 1.50 Not published by Fronius International
Max DC voltage 1000 V 1000 V Same
MPPT voltage range 200-800 V 200-800 V Same
Start voltage 80 V 200 V -120 V for Fronius Primo 12.5-1
MPP trackers 2 2 Same
Strings per tracker - 3 Not published by Fronius International
Max input current per tracker 33.0 A - Not published by Fronius International
Efficiency
European efficiency - 97.4 % Not published by Fronius International
Max efficiency 96.7 % 97.8 % +1.1 pp for Symo Advanced 12.5-3-M
CEC efficiency 96.5 % - Not published by Fronius International
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 35.4 kg -2.0 kg for Symo Advanced 12.5-3-M
Weight per kW 3.0 kg/kW 2.8 kg/kW Effectively the same
Dimensions 724x511x226 mm 725x510x225 mm 724x511x226 mm vs 725x510x225 mm
Ingress protection NEMA 4X 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 Yes Yes Same
Ethernet Yes Yes Same
Arc fault protection Yes Yes Same
Integrated DC switch Yes Yes Same
Warranty
Warranty 10 yrs - Not published by Fronius International
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.