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Solis-3P4K-4G vs Fronius Primo 4.0-1 6 of 20 identical Swap Change inverters

Solis-3P4K-4G vs Fronius Primo 4.0-1

Ginlong Solis
Solis-3P4K-4G
4 kW 97.8 % euro Grid-tie
Open inverter page Datasheet PDF
VS
Fronius Primo 4.0-1
Fronius International
Fronius Primo 4.0-1
4 kW 97.0 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

Solis-3P4K-4G leads on the differences that matter

The largest is european efficiency: 0.8 pp more efficient. 6 of 20 comparable parameters are identical, with 12 more left out because at least one datasheet does not publish them.

See all 14 differences
How alike are they
6 of 20 comparable
parameters are identical
identical differs not published
01

What actually differs

14 of 20 parameters
Parameter Solis-3P4K-4G Fronius Primo 4.0-1 Difference
European efficiency 97.8 % 97.0 % 0.8 pp more efficient
Max AC power 4.40 kW 4.00 kW 0.40 kW apart
Max PV power 4.80 kW 6.00 kW 1.20 kW apart
DC/AC ratio 1.20 1.50 0.30 more oversizing headroom
Weight 17.3 kg 21.5 kg 4.2 kg lighter
Weight per kW 4.3 kg/kW 5.4 kg/kW 1.0 kg/kW lighter
Grid connection 3-phase Single-phase 3-phase vs Single-phase
Nominal AC voltage 400 V 230 V 170 V apart
Max AC current 6.4 A 17.4 A 11.0 A apart
Start voltage 180 V 80 V 100 V earlier start
Max operating temperature 60 °C 55 °C 5 °C more heat tolerant
Max efficiency 98.3 % 98.1 % 0.2 pp more efficient
MPPT voltage range 160-850 V 80-800 V 160-850 V vs 80-800 V
Dimensions 563x310x219 mm 645x431x204 mm 563x310x219 mm vs 645x431x204 mm
02

Full specification

Parameter Solis-3P4K-4G Fronius Primo 4.0-1 Difference
AC output
Rated AC power 4.00 kW 4.00 kW Same
Max AC power 4.40 kW 4.00 kW 0.40 kW apart
Grid connection 3-phase Single-phase 3-phase vs Single-phase
Nominal AC voltage 400 V 230 V 170 V apart
Max AC current 6.4 A 17.4 A 11.0 A apart
PV input
Max PV power 4.80 kW 6.00 kW 1.20 kW apart
DC/AC ratio 1.20 1.50 +0.30 for Fronius Primo 4.0-1
Max DC voltage 1000 V 1000 V Same
MPPT voltage range 160-850 V 80-800 V 160-850 V vs 80-800 V
Start voltage 180 V 80 V -100 V for Fronius Primo 4.0-1
MPP trackers 2 2 Same
Strings per tracker - 2 Not published by Ginlong Solis
Max input current per tracker - 18.0 A Not published by Ginlong Solis
Efficiency
European efficiency 97.8 % 97.0 % +0.8 pp for Solis-3P4K-4G
Max efficiency 98.3 % 98.1 % +0.2 pp for Solis-3P4K-4G
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 17.3 kg 21.5 kg -4.2 kg for Solis-3P4K-4G
Weight per kW 4.3 kg/kW 5.4 kg/kW -1.0 kg/kW for Solis-3P4K-4G
Dimensions 563x310x219 mm 645x431x204 mm 563x310x219 mm vs 645x431x204 mm
Ingress protection IP65 IP65 Same
Cooling - forced-air Not published by Ginlong Solis
Noise - - Neither datasheet publishes this
Max operating temperature 60 °C 55 °C +5 °C for Solis-3P4K-4G
Connectivity and safety
Wi-Fi Yes Yes Same
Ethernet - Yes Not published by Ginlong Solis
Arc fault protection Yes - Not published by Fronius International
Integrated DC switch Yes Yes Same
Warranty
Warranty - - Neither datasheet publishes this
03

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04

Written summary

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