Skip to main content
Fronius Primo 4.0-1 vs S6-GR3P-4K02-NV-ND 6 of 21 identical Swap Change inverters

Fronius Primo 4.0-1 vs Ginlong Solis S6-GR3P-4K02-NV-ND

Fronius Primo 4.0-1
Fronius International
Fronius Primo 4.0-1
4 kW 97.0 % euro Grid-tie
Open inverter page Datasheet PDF
VS
Ginlong Solis S6-GR3P-4K02-NV-ND
Ginlong Solis
S6-GR3P-4K02-NV-ND
4 kW 97.7 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

S6-GR3P-4K02-NV-ND leads on the differences that matter

The largest is european efficiency: 0.7 pp more efficient. 6 of 21 comparable parameters are identical, with 11 more left out because at least one datasheet does not publish them.

See all 15 differences
How alike are they
6 of 21 comparable
parameters are identical
identical differs not published
01

What actually differs

15 of 21 parameters
Parameter Fronius Primo 4.0-1 S6-GR3P-4K02-NV-ND Difference
European efficiency 97.0 % 97.7 % 0.7 pp more efficient
Max DC voltage 1000 V 1100 V 100 V apart
Max input current per tracker 18.0 A 21.0 A 3.0 A more headroom
Weight 21.5 kg 14.7 kg 6.8 kg lighter
Weight per kW 5.4 kg/kW 3.7 kg/kW 1.7 kg/kW lighter
Grid connection Single-phase 3-phase Single-phase vs 3-phase
Max AC current 17.4 A 6.1 A 11.3 A apart
Start voltage 80 V 160 V 80 V earlier start
Max operating temperature 55 °C 60 °C 5 °C more heat tolerant
Max efficiency 98.1 % 98.3 % 0.2 pp more efficient
Ingress protection IP65 IP66 IP65 vs IP66
MPPT voltage range 80-800 V 160-1000 V 80-800 V vs 160-1000 V
Strings per tracker 2 1 1 string apart
Dimensions 645x431x204 mm 410x355x179 mm 645x431x204 mm vs 410x355x179 mm
Cooling forced-air natural forced-air vs natural
02

Full specification

Parameter Fronius Primo 4.0-1 S6-GR3P-4K02-NV-ND Difference
AC output
Rated AC power 4.00 kW 4.00 kW Same
Max AC power 4.00 kW 4.00 kW Same
Grid connection Single-phase 3-phase Single-phase vs 3-phase
Nominal AC voltage 230 V - Not published by Ginlong Solis
Max AC current 17.4 A 6.1 A 11.3 A apart
PV input
Max PV power 6.00 kW 6.00 kW Same
DC/AC ratio 1.50 1.50 Same
Max DC voltage 1000 V 1100 V 100 V apart
MPPT voltage range 80-800 V 160-1000 V 80-800 V vs 160-1000 V
Start voltage 80 V 160 V -80 V for Fronius Primo 4.0-1
MPP trackers 2 2 Same
Strings per tracker 2 1 1 string apart
Max input current per tracker 18.0 A 21.0 A +3.0 A for S6-GR3P-4K02-NV-ND
Efficiency
European efficiency 97.0 % 97.7 % +0.7 pp for S6-GR3P-4K02-NV-ND
Max efficiency 98.1 % 98.3 % +0.2 pp for S6-GR3P-4K02-NV-ND
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 21.5 kg 14.7 kg -6.8 kg for S6-GR3P-4K02-NV-ND
Weight per kW 5.4 kg/kW 3.7 kg/kW -1.7 kg/kW for S6-GR3P-4K02-NV-ND
Dimensions 645x431x204 mm 410x355x179 mm 645x431x204 mm vs 410x355x179 mm
Ingress protection IP65 IP66 IP65 vs IP66
Cooling forced-air natural forced-air vs natural
Noise - 30 dB Not published by Fronius International
Max operating temperature 55 °C 60 °C +5 °C for S6-GR3P-4K02-NV-ND
Connectivity and safety
Wi-Fi Yes - Not published by Ginlong Solis
Ethernet Yes - Not published by Ginlong Solis
Arc fault protection - - Neither datasheet publishes this
Integrated DC switch Yes Yes Same
Warranty
Warranty - - Neither datasheet publishes this
03

More useful comparisons

Open all inverters
Same type, similar size
SolarEdge
Fronius Primo 4.0-1 vs SolarEdge EV Charging Single Phase Inverter SE4000H (aka H4000SE / SE4000H)
11 differences, the largest is european efficiency
Same type, similar size
SolarEdge
Fronius Primo 4.0-1 vs SolarEdge SE4000H (HD‑Wave, single phase)
11 differences, the largest is european efficiency
Same type, similar size
Ginlong Solis
Fronius Primo 4.0-1 vs Solis-3P4K-4G
14 differences, the largest is european efficiency
Same type, similar size
GoodWe
Ginlong Solis S6-GR3P-4K02-NV-ND vs GoodWe GW4K-DT
6 differences, the largest is max dc voltage
04

Written summary

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