Fronius Symo GEN24 Plus

Inverter for private PV systems with PV Point or Full Backup

Our three-phase Fronius GEN24 Plus hybrid inverter is the perfect heart for private photovoltaic systems. The Fronius GEN24 Plus with its PV Point provides an integrated basic backup power supply or even a comprehensive backup power solution with the option to connect a battery system.

The Fronius GEN24 Plus hybrid inverter enables energy self-sufficiency for electricity, heating, cooling and e-mobility with the use of a battery system. This means that the Fronius GEN24 Plus with Full Backup has a backup power solution that can even supply 3-phase loads, such as heat pumps. What’s more, the Multi Flow Technology lets the hybrid inverter supply parallel energy flows in the system, even in backup power mode.*

*The Full Backup option is not available for the Fronius Symo GEN24 Plus 3.0-5.0. Additional external components for grid switchover are required for the Full Backup. More information on this can be found in the operating instructions.

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Product details

Technical Data

Input Data

Number of MPP trackers	2
Maximum PV input power	3150 W
Max. input current (I_{dc max})	12,5 A / 12,5 A
Max. short circuit current, module array*	20,0 A / 20,0 A
DC input voltage range (U_{dc min} - U_{dc max})	80-1000 V
Feed-in start voltage (U_{dc start})	80 V
Nominal input voltage (U_dc,r)	610 V
MPP voltage range (U_{mpp min} - U_{mpp max})	125-800 V
Usable MPP voltage range	80-800 V
Number of DC connections	2+1
Max. PV generator power (P_{dc max})	4,5 kWpeak

Output Data

AC nominal output (P_ac,r)	3000 W
Max. output power (P_{ac max})	3000 VA
Max. grid power demand	10 VA
Max. AC output current	8 A
Grid connection (U_ac,r)	3~NPE 230V / 400V, 3~NPE 220V / 380V
AC voltage range (U_min - U_max)	154-280 V
Frequency (f_r)	50 / 60 Hz
Frequency range (f_min - f_max)	45-66 Hz
Total harmonic distortion	<3% @Pnom (230/400VAC 50Hz)
Power factor (cos φ_ac,r)	0,7-1 ind./cap.
Back-up power	1 ~ NPE 220 V / 230 V
Nominal AC output current (380V_AC)	4,5 A
Nominal AC output current (400V_AC)	4,3 A

Output Data PV Point

Max continuous output power	3000 VA
Nom. output current _{(Iac max)}	13 A
Grid connection	1 ~ NPE 220 V / 230 V
Frequency	50 Hz / 60 Hz
Max. switchover time PV-Point	15 s
Max. switchover time Full Backup	10 s
Frequency in backup power mode	53 Hz

Battery Connection

Number of DC connections	1
Max. input current (I_{dc max.})	12,5 A
Max. input / output power (Depending on the connected battery)	3150 W
Min. DC input voltage	160 V
Max. DC input voltage	531 V

General Data

Width	474 mm
Height	530 mm
Depth	165 mm
Weight	15,61 kg
Weight incl. packaging	19,35 kg
Degree of protection	IP66
Protection class	1
Overvoltage category (DC / AC)¹⁾	2/3
Night-time consumption	<10 W
Inverter design	Transformerless
Cooling	Regulated air cooling
Installation	Indoor and outdoor installation
Ambient temperature range	-25 - +60°C
Permitted humidity	0 - 100%
Max. altitude	3000m / 4000m
DC PV connection technology	3x DC+ and 3x DC- push-in spring terminals 2.5 - 10 mm²
DC battery connection technology	1x BATT+ and 1x BATT- push-in spring terminals 2.5 - 10 mm²
AC connection technology	5 pole AC push-in spring terminals 1.5 - 10 mm² 3 pole backup power push-in spring terminals 1.5mm² - 10mm² 5x PE-screw terminals 2.5 - 16 mm²
Certificates and compliance with standards	IEC 62109, IEC 62116, IEC 61727, IEC 62909, VDE 0126, VDE AR-N4105, AS/NZS 4777.2, EN 50549, CEI 0-21, G 98, R25 ⁶⁾
Back-up power functions	PV Point
Sound emissions	36 dB(A)
Interference emission class	B
Compatible batteries ⁵⁾	BYD Battery-Box Premium HVS/HVM ⁴⁾& LG FLEX

Efficiency

Max. efficiency (PV - grid)	98,1 %
European efficiency (ηEU)	96.7%
η at 5% P_ac,r³⁾	86.8%
η at 10% P_ac,r³⁾	92.4%
η at 20% P_ac,r³⁾	95.7%
η at 25% P_ac,r³⁾	96.3%
η at 30% P_ac,r³⁾	97.0%
η at 50% P_ac,r³⁾	97.6%
η at 75% P_ac,r³⁾	97.9%
η at 100% P_ac,r³⁾	98.1%
MPP adaptation efficiency	99.9%

Protection Devices

DC insulation measurement	Yes
Overload behaviour	Interface to ripple control receiver, energy management
DC disconnector	Yes
DC Reverse polarity protection	Yes

Interfaces

WLAN / 2x Ethernet LAN	Fronius Solar.web, Modbus TCP SunSpec, Fronius Solar API (JSON)
6x digital in/out + 6x digital in	Interface to ripple control receiver, energy management
Emergency stop (WSD)	Yes
Datalogger and web server	Included
2x RS485	Modbus RTU SunSpec (third-party supplier) / Fronius Smart Meter, battery, Fronius Ohmpilot

Technology

Integrated data communication

We are the first inverter manufacturer to offer a data communication package with fully integrated datalogging, WLAN, Ethernet, energy management, web server and a range of interfaces. The inverter is connected to the internet by network cable or WLAN - without additional cabling - and grants you the perfect overview of how the PV system is operating. Connection to third-party components is provided by means of interfaces such as Modbus TCP SunSpec, Modbus RTU SunSpec or Fronius Solar API (JSON). The open interfaces can also be operated in parallel to the Fronius Solar.web.

SuperFlex Design

The Fronius SuperFlex Design is an ingenious combination of technical performance attributes that make designing your PV system not only extremely simple, but also incredibly flexible. The key performance factors of the SuperFlex Design are two MPP trackers, together with a high system voltage and wide DC input voltage range. Every DC input, and therefore every MPP tracker, is able to accommodate the entire nominal output of the inverter. Regardless of whether the inverter has to cope with different roof orientations, shading of one or two strings, or the use of residual modules: a Fronius inverter featuring integrated SuperFlex Design will satisfy every conceivable operational PV system planning scenario using just a single inverter model.

Dynamic Peak Manager

The Dynamic Peak Manager is a new MPP tracking algorithm that dynamically adapts its behaviour when searching for the optimal operating point. Its special feature is that the Dynamic Peak Manager automatically checks the entire characteristic curve on a regular basis and finds the global Maximum Power Point (GMPP), even in partial shade.

Multi Flow Technology

Using Multi Flow Technology, different DC and AC energy flows are possible in parallel. On the one hand, this allows energy from the modules and from the battery to be made available for domestic use at the same time. However, it is also possible for the energy from the modules to be simultaneously fed into the battery and the in-house network. Furthermore, not only can the battery be charged from the DC side, but also from the AC side (for example from existing PV systems or other energy sources, such as a wind turbine). This means the inverter is also suitable for AC-coupled retrofitting. The inverter manages these energy flows in such a way that the highest possible degree of self-sufficiency is achieved.

Full Backup

With the full backup option, the entire household, i.e. 1 phase as well as 3 phase devices, can be supplied with electricity in the event of a grid outage. For Full Backup, a battery and a switching device for safe grid disconnection are required in addition to the inverter.

PV Point

The integrated basic grid back-up - a socket that is supplied with power during power outages - ensures that important loads can conitunue to operate should the power fail.

Active Cooling

Active cooling technology relies on one or more fans, which not only avoid hot spots, but also regulate the air circulation inside the inverter, thus keeping the temperature of the power electronics low. This has a positive effect on the service life of the devices, optimises yields and reduces costs. At Fronius, active cooling is supplied as standard in all devices.

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FOOTNOTES FOR TECHNICAL DATA

1) According to IEC 62109-1. Option to retrofit surge protection device DC SPD type 1+2 for 2 MPP trackers available under the following item number: 4,240,313,CK

2) Unrestricted / restricted voltage range.

3) At Udc,r

4) This does not apply to the BYD Battery-Box Premium HVS 12.8 & HVM 8.3

5) Depending on the country-specific certification and availability

6) You can find the current certificates under www.fronius.com/symo-gen24-plus-cert

* I_{sc pv} = I_{sc max} ≥ I_sc (STC) x 1,25 according to e.g..: IEC 60364-7-712, NEC 2020, AS/NZS 5033:2021.

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