Skip to main content
Symo Advanced 12.5-3-M vs SE12.5K 10 of 19 identical Swap Change inverters

Fronius International Symo Advanced 12.5-3-M vs SolarEdge SE12.5K

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
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 max pv power: 1.95 kW apart. 10 of 19 comparable parameters are identical, with 13 more left out because at least one datasheet does not publish them.

See all 9 differences
How alike are they
10 of 19 comparable
parameters are identical
identical differs not published
01

What actually differs

9 of 19 parameters
Parameter Symo Advanced 12.5-3-M SE12.5K Difference
Max PV power 18.80 kW 16.85 kW 1.95 kW apart
Weight 35.4 kg 30.7 kg 4.7 kg lighter
European efficiency 97.4 % 97.7 % 0.3 pp more efficient
DC/AC ratio 1.50 1.35 0.16 more oversizing headroom
Weight per kW 2.8 kg/kW 2.5 kg/kW 0.4 kg/kW lighter
Max efficiency 97.8 % 98.0 % 0.2 pp more efficient
Ingress protection IP66 IP65 IP66 vs IP65
Max AC current 18.9 A 20.0 A 1.1 A apart
Dimensions 725x510x225 mm 549x317x264 mm 725x510x225 mm vs 549x317x264 mm
02

Full specification

Parameter Symo Advanced 12.5-3-M 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 3-phase 3-phase Same
Nominal AC voltage 400 V 400 V Same
Max AC current 18.9 A 20.0 A 1.1 A apart
PV input
Max PV power 18.80 kW 16.85 kW 1.95 kW apart
DC/AC ratio 1.50 1.35 +0.16 for Symo Advanced 12.5-3-M
Max DC voltage 1000 V 1000 V Same
MPPT voltage range 200-800 V - Not published by SolarEdge
Start voltage 200 V - Not published by SolarEdge
MPP trackers 2 - Not published by SolarEdge
Strings per tracker 3 - Not published by SolarEdge
Max input current per tracker - - Neither datasheet publishes this
Efficiency
European efficiency 97.4 % 97.7 % +0.3 pp for SE12.5K
Max efficiency 97.8 % 98.0 % +0.2 pp for SE12.5K
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 35.4 kg 30.7 kg -4.7 kg for SE12.5K
Weight per kW 2.8 kg/kW 2.5 kg/kW -0.4 kg/kW for SE12.5K
Dimensions 725x510x225 mm 549x317x264 mm 725x510x225 mm vs 549x317x264 mm
Ingress protection IP66 IP65 IP66 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 - 20 yrs Not published by Fronius International
03

More useful comparisons

Open all inverters
Same type, similar size
SolarEdge
Fronius International Symo Advanced 12.5-3-M vs SolarEdge SE12.5K (Three Phase)
8 differences, the largest is max pv power
Same type, similar size
Fronius International
Fronius International Symo Advanced 12.5-3-M vs Fronius Primo 12.5-1
8 differences, the largest is max efficiency
Same type, similar size
Fronius International
Fronius International Symo Advanced 12.5-3-M vs Fronius Symo 12.5-3 480
4 differences, the largest is max efficiency
04

Written summary

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