---
title: "Fronius Primo 7.6-1 vs SOFAR 7.7KTLM-G3 - Inverter Comparison | ComparePV"
description: "Compare Fronius Primo 7.6-1 vs SOFAR 7.7KTLM-G3 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-7-6-1/sofar-solar-sofar-7-7ktlm-g3"
updated: 2026-01-16
---

# Fronius Primo 7.6-1 vs SOFAR 7.7KTLM-G3

SOFAR 7.7KTLM-G3 leads on the differences that matter

The largest is max dc voltage: 400 V apart. 4 of 19 comparable parameters are identical, with 13 more left out because at least one datasheet does not publish them.


## The two inverters


| Attribute | A | B |
| --- | --- | --- |
| Inverter | [Fronius Primo 7.6-1](https://comparepv.com/inverter/fronius-international-fronius-primo-7-6-1) | [SOFAR 7.7KTLM-G3](https://comparepv.com/inverter/sofar-solar-sofar-7-7ktlm-g3) |
| Manufacturer | Fronius International | Sofar Solar |
| Rated AC power | 7.6 kW | 7.7 kW |
| Type | Grid-tie | Grid-tie |


## Where they differ

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


| Parameter | Fronius Primo 7.6-1 | SOFAR 7.7KTLM-G3 | Difference |
| --- | --- | --- | --- |
| Max DC voltage | 1000 V | 600 V | 400 V apart |
| Max input current per tracker | 33.0 A | 20.0 A | +13.0 A for Fronius Primo 7.6-1 |
| Max efficiency | 96.9 % | 98.1 % | +1.2 pp for SOFAR 7.7KTLM-G3 |
| Rated AC power | 7.60 kW | 7.70 kW | 0.10 kW apart |
| Weight | 21.4 kg | 17.5 kg | -3.9 kg for SOFAR 7.7KTLM-G3 |
| Weight per kW | 2.8 kg/kW | 2.3 kg/kW | -0.5 kg/kW for SOFAR 7.7KTLM-G3 |
| Max AC power | 7.60 kW | 7.70 kW | 0.10 kW apart |
| Max AC current | 31.7 A | 35.0 A | 3.3 A apart |
| MPP trackers | 2 | 3 | +1 trackers for SOFAR 7.7KTLM-G3 |
| Ingress protection | NEMA 4X | IP65 | NEMA 4X vs IP65 |
| Nominal AC voltage | 240 V | 230 V | 10 V apart |
| MPPT voltage range | 200-800 V | 80-550 V | 200-800 V vs 80-550 V |
| Start voltage | 80 V | 90 V | -10 V for Fronius Primo 7.6-1 |
| Dimensions | 627x429x206 mm | 380x468x187 mm | 627x429x206 mm vs 380x468x187 mm |
| Cooling | forced-air | natural | forced-air vs natural |


## Every compared parameter


| Parameter | Fronius Primo 7.6-1 | SOFAR 7.7KTLM-G3 |
| --- | --- | --- |
| Rated AC power | 7.60 kW | 7.70 kW |
| Max AC power | 7.60 kW | 7.70 kW |
| Grid connection | Single-phase | Single-phase |
| Nominal AC voltage | 240 V | 230 V |
| Max AC current | 31.7 A | 35.0 A |
| Max PV power | - | - |
| DC/AC ratio | - | - |
| Max DC voltage | 1000 V | 600 V |
| MPPT voltage range | 200-800 V | 80-550 V |
| Start voltage | 80 V | 90 V |
| MPP trackers | 2 | 3 |
| Strings per tracker | - | 1 |
| Max input current per tracker | 33.0 A | 20.0 A |
| European efficiency | - | 97.3 % |
| Max efficiency | 96.9 % | 98.1 % |
| CEC efficiency | 96.0 % | - |
| Battery input | - | - |
| Battery voltage | - | - |
| Max charge current | - | - |
| Backup power | - | - |
| Weight | 21.4 kg | 17.5 kg |
| Weight per kW | 2.8 kg/kW | 2.3 kg/kW |
| Dimensions | 627x429x206 mm | 380x468x187 mm |
| Ingress protection | NEMA 4X | IP65 |
| Cooling | forced-air | natural |
| Noise | - | - |
| Max operating temperature | 60 °C | 60 °C |
| Wi-Fi | Yes | Yes |
| Ethernet | Yes | - |
| Arc fault protection | Yes | - |
| Integrated DC switch | Yes | Yes |
| Warranty | 10 yrs | - |


## Related comparisons

- [Fronius Primo 7.6-1 vs Deye SUN-7.5K-G](https://comparepv.com/compare-inverters/fronius-international-fronius-primo-7-6-1/deye-sun-7-5k-g) - 14 differences, the largest is max dc voltage
- [Fronius Primo 7.6-1 vs Growatt MOD 8000TL3-X](https://comparepv.com/compare-inverters/fronius-international-fronius-primo-7-6-1/growatt-mod-8000tl3-x) - 16 differences, the largest is rated ac power
- [Fronius Primo 7.6-1 vs Growatt MOD 8KTL3-X2(Pro)](https://comparepv.com/compare-inverters/fronius-international-fronius-primo-7-6-1/growatt-mod-8ktl3-x2-pro) - 16 differences, the largest is rated ac power


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Source: https://comparepv.com/compare-inverters/fronius-international-fronius-primo-7-6-1/sofar-solar-sofar-7-7ktlm-g3

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