---
title: "Fronius Verto 17.5 vs Growatt MID 17KTL3-X - Inverter Comparison | ComparePV"
description: "Compare Fronius Verto 17.5 vs Growatt MID 17KTL3-X side by side: what actually differs, efficiency, MPP trackers, battery input and the full specification."
source: "https://comparepv.com/compare-inverters/fronius-international-fronius-verto-17-5/growatt-mid-17ktl3-x"
updated: 2026-01-16
---

# Fronius Verto 17.5 vs Growatt MID 17KTL3-X

MID 17KTL3-X leads on the differences that matter

The largest is rated ac power: 0.50 kW apart. 8 of 22 comparable parameters are identical, with 10 more left out because at least one datasheet does not publish them.


## The two inverters


| Attribute | A | B |
| --- | --- | --- |
| Inverter | [Fronius Verto 17.5](https://comparepv.com/inverter/fronius-international-fronius-verto-17-5) | [Growatt MID 17KTL3-X](https://comparepv.com/inverter/growatt-mid-17ktl3-x) |
| Manufacturer | Fronius International | Growatt |
| Rated AC power | 17.5 kW | 17 kW |
| Type | Grid-tie | Grid-tie |


## Where they differ

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


| Parameter | Fronius Verto 17.5 | MID 17KTL3-X | Difference |
| --- | --- | --- | --- |
| Rated AC power | 17.50 kW | 17.00 kW | 0.50 kW apart |
| Max DC voltage | 1000 V | 1100 V | 100 V apart |
| Max AC power | 17.50 kW | 18.80 kW | 1.30 kW apart |
| Max PV power | 26.25 kW | 25.50 kW | 0.75 kW apart |
| MPP trackers | 4 | 2 | +2 trackers for Fronius Verto 17.5 |
| Weight | 35.2 kg | 23.0 kg | -12.2 kg for MID 17KTL3-X |
| European efficiency | 98.3 % | 98.6 % | +0.3 pp for MID 17KTL3-X |
| Weight per kW | 2.0 kg/kW | 1.4 kg/kW | -0.7 kg/kW for MID 17KTL3-X |
| Start voltage | 150 V | 250 V | -100 V for Fronius Verto 17.5 |
| Max efficiency | 98.5 % | 98.8 % | +0.2 pp for MID 17KTL3-X |
| Ingress protection | IP66 | IP65 | IP66 vs IP65 |
| MPPT voltage range | 150-870 V | 200-1000 V | 150-870 V vs 200-1000 V |
| Max AC current | 26.5 A | 27.4 A | 0.9 A apart |
| Dimensions | 730x540x278 mm | 395x525x222 mm | 730x540x278 mm vs 395x525x222 mm |


## Every compared parameter


| Parameter | Fronius Verto 17.5 | MID 17KTL3-X |
| --- | --- | --- |
| Rated AC power | 17.50 kW | 17.00 kW |
| Max AC power | 17.50 kW | 18.80 kW |
| Grid connection | 3-phase | 3-phase |
| Nominal AC voltage | 400 V | 400 V |
| Max AC current | 26.5 A | 27.4 A |
| Max PV power | 26.25 kW | 25.50 kW |
| DC/AC ratio | 1.50 | 1.50 |
| Max DC voltage | 1000 V | 1100 V |
| MPPT voltage range | 150-870 V | 200-1000 V |
| Start voltage | 150 V | 250 V |
| MPP trackers | 4 | 2 |
| Strings per tracker | 2 | - |
| Max input current per tracker | 28.0 A | - |
| European efficiency | 98.3 % | 98.6 % |
| Max efficiency | 98.5 % | 98.8 % |
| CEC efficiency | - | - |
| Battery input | - | - |
| Battery voltage | - | - |
| Max charge current | - | - |
| Backup power | - | - |
| Weight | 35.2 kg | 23.0 kg |
| Weight per kW | 2.0 kg/kW | 1.4 kg/kW |
| Dimensions | 730x540x278 mm | 395x525x222 mm |
| Ingress protection | IP66 | IP65 |
| Cooling | forced-air | forced-air |
| Noise | 56 dB | - |
| Max operating temperature | 60 °C | 60 °C |
| Wi-Fi | Yes | Yes |
| Ethernet | Yes | Yes |
| Arc fault protection | Yes | - |
| Integrated DC switch | Yes | Yes |
| Warranty | - | 5 yrs |


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Source: https://comparepv.com/compare-inverters/fronius-international-fronius-verto-17-5/growatt-mid-17ktl3-x

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