---
title: "Fronius International Symo Advanced 12.5-3-M vs Growatt MOD 13KTL3-X - Inverter Comparison | ComparePV"
description: "Compare Fronius International Symo Advanced 12.5-3-M vs Growatt MOD 13KTL3-X side by side: what actually differs, efficiency, MPP trackers, battery input and the full specification."
source: "https://comparepv.com/compare-inverters/fronius-international-symo-advanced-12-5-3-m/growatt-mod-13ktl3-x"
updated: 2026-01-16
---

# Fronius International Symo Advanced 12.5-3-M vs Growatt MOD 13KTL3-X

MOD 13KTL3-X leads on the differences that matter

The largest is rated ac power: 0.50 kW apart. 10 of 24 comparable parameters are identical, with 8 more left out because at least one datasheet does not publish them.


## The two inverters


| Attribute | A | B |
| --- | --- | --- |
| Inverter | [Fronius International Symo Advanced 12.5-3-M](https://comparepv.com/inverter/fronius-international-symo-advanced-12-5-3-m) | [Growatt MOD 13KTL3-X](https://comparepv.com/inverter/growatt-mod-13ktl3-x) |
| Manufacturer | Fronius International | Growatt |
| Rated AC power | 12.5 kW | 13 kW |
| Type | Grid-tie | Grid-tie |


## Where they differ

Ranked by how much the difference matters, not by datasheet order.


| Parameter | Symo Advanced 12.5-3-M | MOD 13KTL3-X | Difference |
| --- | --- | --- | --- |
| Rated AC power | 12.50 kW | 13.00 kW | 0.50 kW apart |
| European efficiency | 97.4 % | 98.2 % | +0.8 pp for MOD 13KTL3-X |
| Max DC voltage | 1000 V | 1100 V | 100 V apart |
| Max efficiency | 97.8 % | 98.6 % | +0.8 pp for MOD 13KTL3-X |
| Max AC power | 12.50 kW | 13.00 kW | 0.50 kW apart |
| Max PV power | 18.80 kW | 19.50 kW | 0.70 kW apart |
| Weight | 35.4 kg | 16.0 kg | -19.4 kg for MOD 13KTL3-X |
| Weight per kW | 2.8 kg/kW | 1.2 kg/kW | -1.6 kg/kW for MOD 13KTL3-X |
| Max AC current | 18.9 A | 21.7 A | 2.8 A apart |
| Start voltage | 200 V | 160 V | -40 V for MOD 13KTL3-X |
| MPPT voltage range | 200-800 V | 140-1000 V | 200-800 V vs 140-1000 V |
| Strings per tracker | 3 | 2 | 1 string apart |
| Dimensions | 725x510x225 mm | 387x425x178 mm | 725x510x225 mm vs 387x425x178 mm |
| Cooling | forced-air | natural | forced-air vs natural |


## Every compared parameter


| Parameter | Symo Advanced 12.5-3-M | MOD 13KTL3-X |
| --- | --- | --- |
| Rated AC power | 12.50 kW | 13.00 kW |
| Max AC power | 12.50 kW | 13.00 kW |
| Grid connection | 3-phase | 3-phase |
| Nominal AC voltage | 400 V | 400 V |
| Max AC current | 18.9 A | 21.7 A |
| Max PV power | 18.80 kW | 19.50 kW |
| DC/AC ratio | 1.50 | 1.50 |
| Max DC voltage | 1000 V | 1100 V |
| MPPT voltage range | 200-800 V | 140-1000 V |
| Start voltage | 200 V | 160 V |
| MPP trackers | 2 | 2 |
| Strings per tracker | 3 | 2 |
| Max input current per tracker | - | 26.0 A |
| European efficiency | 97.4 % | 98.2 % |
| Max efficiency | 97.8 % | 98.6 % |
| CEC efficiency | - | - |
| Battery input | - | - |
| Battery voltage | - | - |
| Max charge current | - | - |
| Backup power | - | - |
| Weight | 35.4 kg | 16.0 kg |
| Weight per kW | 2.8 kg/kW | 1.2 kg/kW |
| Dimensions | 725x510x225 mm | 387x425x178 mm |
| Ingress protection | IP66 | IP66 |
| Cooling | forced-air | natural |
| Noise | - | - |
| Max operating temperature | 60 °C | 60 °C |
| Wi-Fi | Yes | Yes |
| Ethernet | Yes | Yes |
| Arc fault protection | Yes | Yes |
| Integrated DC switch | Yes | Yes |
| Warranty | - | 5 yrs |


## Related comparisons

- [Fronius International Symo Advanced 12.5-3-M vs SolarEdge SE12.5K](https://comparepv.com/compare-inverters/fronius-international-symo-advanced-12-5-3-m/solaredge-se12-5k) - 9 differences, the largest is max pv power
- [Fronius International Symo Advanced 12.5-3-M vs SolarEdge SE12.5K (Three Phase)](https://comparepv.com/compare-inverters/fronius-international-symo-advanced-12-5-3-m/solaredge-solaredge-se12-5k-three-phase) - 8 differences, the largest is max pv power
- [Fronius International Symo Advanced 12.5-3-M vs Fronius Primo 12.5-1](https://comparepv.com/compare-inverters/fronius-international-symo-advanced-12-5-3-m/fronius-international-fronius-primo-12-5-1) - 8 differences, the largest is max efficiency


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Source: https://comparepv.com/compare-inverters/fronius-international-symo-advanced-12-5-3-m/growatt-mod-13ktl3-x

Not in this file, on the page: a written summary generated on request.