---
title: "Fronius Primo 5.0-1 vs Solis-3P5K-4G - Inverter Comparison | ComparePV"
description: "Compare Fronius Primo 5.0-1 vs Solis-3P5K-4G side by side: what actually differs, efficiency, MPP trackers, battery input and the full specification."
source: "https://comparepv.com/compare-inverters/fronius-international-fronius-primo-5-0-1/ginlong-solis-solis-3p5k-4g"
updated: 2026-01-17
---

# Fronius Primo 5.0-1 vs Solis-3P5K-4G

Solis-3P5K-4G leads on the differences that matter

The largest is max efficiency: 1.4 pp more efficient. 7 of 18 comparable parameters are identical, with 14 more left out because at least one datasheet does not publish them.


## The two inverters


| Attribute | A | B |
| --- | --- | --- |
| Inverter | [Fronius Primo 5.0-1](https://comparepv.com/inverter/fronius-international-fronius-primo-5-0-1) | [Solis-3P5K-4G](https://comparepv.com/inverter/ginlong-solis-solis-3p5k-4g) |
| Manufacturer | Fronius International | Ginlong Solis |
| Rated AC power | 5 kW | 5 kW |
| Type | Grid-tie | Grid-tie |


## Where they differ

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


| Parameter | Fronius Primo 5.0-1 | Solis-3P5K-4G | Difference |
| --- | --- | --- | --- |
| Max efficiency | 96.9 % | 98.3 % | +1.4 pp for Solis-3P5K-4G |
| Max AC power | 5.00 kW | 5.50 kW | 0.50 kW apart |
| Weight | 21.4 kg | 18.0 kg | -3.4 kg for Solis-3P5K-4G |
| Weight per kW | 4.3 kg/kW | 3.6 kg/kW | -0.7 kg/kW for Solis-3P5K-4G |
| Grid connection | Single-phase | 3-phase | Single-phase vs 3-phase |
| Nominal AC voltage | 240 V | 400 V | 160 V apart |
| Max AC current | 20.8 A | 7.9 A | 12.9 A apart |
| Start voltage | 80 V | 180 V | -100 V for Fronius Primo 5.0-1 |
| Ingress protection | NEMA 4X | IP65 | NEMA 4X vs IP65 |
| MPPT voltage range | 200-800 V | 160-850 V | 200-800 V vs 160-850 V |
| Dimensions | 627x429x206 mm | 563x310x219 mm | 627x429x206 mm vs 563x310x219 mm |


## Every compared parameter


| Parameter | Fronius Primo 5.0-1 | Solis-3P5K-4G |
| --- | --- | --- |
| Rated AC power | 5.00 kW | 5.00 kW |
| Max AC power | 5.00 kW | 5.50 kW |
| Grid connection | Single-phase | 3-phase |
| Nominal AC voltage | 240 V | 400 V |
| Max AC current | 20.8 A | 7.9 A |
| Max PV power | - | 6.00 kW |
| DC/AC ratio | - | 1.20 |
| Max DC voltage | 1000 V | 1000 V |
| MPPT voltage range | 200-800 V | 160-850 V |
| Start voltage | 80 V | 180 V |
| MPP trackers | 2 | 2 |
| Strings per tracker | - | - |
| Max input current per tracker | 33.0 A | - |
| European efficiency | - | 97.8 % |
| Max efficiency | 96.9 % | 98.3 % |
| CEC efficiency | 95.5 % | - |
| Battery input | - | - |
| Battery voltage | - | - |
| Max charge current | - | - |
| Backup power | - | - |
| Weight | 21.4 kg | 18.0 kg |
| Weight per kW | 4.3 kg/kW | 3.6 kg/kW |
| Dimensions | 627x429x206 mm | 563x310x219 mm |
| Ingress protection | NEMA 4X | IP65 |
| Cooling | forced-air | - |
| Noise | - | - |
| Max operating temperature | 60 °C | 60 °C |
| Wi-Fi | Yes | Yes |
| Ethernet | Yes | - |
| Arc fault protection | Yes | Yes |
| Integrated DC switch | Yes | Yes |
| Warranty | 10 yrs | - |


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Source: https://comparepv.com/compare-inverters/fronius-international-fronius-primo-5-0-1/ginlong-solis-solis-3p5k-4g

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