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SUN-18K-G02 vs Fronius Symo 17.5-3 480 6 of 16 identical Swap Change inverters

Deye SUN-18K-G02 vs Fronius Symo 17.5-3 480

Deye
SUN-18K-G02
18 kW 97.8 % euro Grid-tie
Open inverter page Datasheet PDF
VS
Fronius Symo 17.5-3 480
Fronius International
Fronius Symo 17.5-3 480
17.495 kW Grid-tie
Open inverter page Datasheet PDF
The verdict

SUN-18K-G02 leads on the differences that matter

The largest is rated ac power: 0.50 kW apart. 6 of 16 comparable parameters are identical, with 16 more left out because at least one datasheet does not publish them.

See all 10 differences
How alike are they
6 of 16 comparable
parameters are identical
identical differs not published
01

What actually differs

10 of 16 parameters
Parameter SUN-18K-G02 Fronius Symo 17.5-3 480 Difference
Rated AC power 18.00 kW 17.50 kW 0.50 kW apart
Max efficiency 98.6 % 98.0 % 0.6 pp more efficient
Max AC power 19.80 kW 17.50 kW 2.30 kW apart
Weight 28.0 kg 43.4 kg 15.4 kg lighter
Weight per kW 1.6 kg/kW 2.5 kg/kW 0.9 kg/kW lighter
Max AC current 28.7 A 21.0 A 7.7 A apart
Start voltage 250 V 200 V 50 V earlier start
Max operating temperature 65 °C 60 °C 5 °C more heat tolerant
Ingress protection IP65 NEMA 4X IP65 vs NEMA 4X
Dimensions 520x400x240 mm 724x511x226 mm 520x400x240 mm vs 724x511x226 mm
02

Full specification

Parameter SUN-18K-G02 Fronius Symo 17.5-3 480 Difference
AC output
Rated AC power 18.00 kW 17.50 kW 0.50 kW apart
Max AC power 19.80 kW 17.50 kW 2.30 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V - Not published by Fronius International
Max AC current 28.7 A 21.0 A 7.7 A apart
PV input
Max PV power 21.60 kW - Not published by Fronius International
DC/AC ratio 1.20 - Not published by Fronius International
Max DC voltage 1000 V 1000 V Same
MPPT voltage range 200-850 V - Not published by Fronius International
Start voltage 250 V 200 V -50 V for Fronius Symo 17.5-3 480
MPP trackers 2 - Not published by Fronius International
Strings per tracker - - Neither datasheet publishes this
Max input current per tracker - - Neither datasheet publishes this
Efficiency
European efficiency 97.8 % - Not published by Fronius International
Max efficiency 98.6 % 98.0 % +0.6 pp for SUN-18K-G02
CEC efficiency - 97.5 % Not published by Deye
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 28.0 kg 43.4 kg -15.4 kg for SUN-18K-G02
Weight per kW 1.6 kg/kW 2.5 kg/kW -0.9 kg/kW for SUN-18K-G02
Dimensions 520x400x240 mm 724x511x226 mm 520x400x240 mm vs 724x511x226 mm
Ingress protection IP65 NEMA 4X IP65 vs NEMA 4X
Cooling forced-air forced-air Same
Noise 45 dB - Not published by Fronius International
Max operating temperature 65 °C 60 °C +5 °C for SUN-18K-G02
Connectivity and safety
Wi-Fi Yes Yes Same
Ethernet Yes Yes Same
Arc fault protection - Yes Not published by Deye
Integrated DC switch Yes Yes Same
Warranty
Warranty - 10 yrs Not published by Deye
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.