Inverter – FRONIUS – Primo GEN24 3.0 Plus – single-phase – hybrid – HV
Product details
Primo GEN24
Primo GEN24 is a series of transformerless photovoltaic inverters rated at 3.0–6.0 kW, equipped with the basic PV Point backup power function. Open communication interfaces enable the integration of Fronius components and third-party devices. Active cooling extends the inverter’s service life, while energy management functions help monitor and control the system’s operation.
Key benefits of Primo GEN24
- Integrated PV Point backup power supply – basic function included as standard.
- Expandable to full backup power – the Fronius UP.storage software update allows the inverter to be upgraded with full home backup power functionality.
- Two maximum power point trackers – the DC input voltage range is 65–600 V, and the start-up voltage is 80 V.
- Open communication interfaces – WLAN, two Ethernet LAN ports and two RS485 interfaces enable communication and device integration.
- Active cooling and IP66 protection rating – design suitable for indoor and outdoor installation.
- Integrated data logger and web server – support for communication with Fronius Solar.web.
Who is this a good choice for?
Primo GEN24 is an option for homeowners who want to combine a photovoltaic system with basic backup power and retain the ability to expand this functionality later. It is also suitable for users developing their own energy management system who want to integrate Fronius components and devices from other manufacturers via open communication interfaces.
| Parameter | Primo GEN24 3.0 Plus |
|---|---|
| Number of MPP trackers | 2 |
| DC input voltage range (V) | 65 - 600 |
| Rated input voltage (V) | 400 |
| Start-up voltage (V) | 80 |
| Usable MPP voltage range (V) | 65 - 530 |
| MPP voltage range at rated power (V) | 190 - 530 |
| Maximum total PV generator power (Wpeak) | 4,500 |
| Maximum usable input current MPPT 1 (A) | 22 |
| Maximum PV generator short-circuit current MPPT 1 (A) | 41,25 |
| Number of DC connections MPPT 1 | 2 |
| Maximum usable DC power MPPT 1 (W) | 3110 |
| Maximum PV generator power MPPT 1 (Wpeak) | 3,750 |
| Maximum usable input current MPPT 2 (A) | 12 |
| Maximum PV generator short-circuit current MPPT 2 (A) | 22 |
| Number of DC MPPT connections 2 | 2 |
| Maximum usable DC power MPPT 2 (W) | 3110 |
| Maximum PV generator power MPPT 2 (Wpeak) | 3,110 |
| Rated output power (W) | 3,000 |
| Apparent power (VA) | 3,000 |
| Maximum output power (VA) | 3,000 |
| Rated output current at 220 V AC (A) | 13,6 |
| Rated output current at 230 V AC (A) | 13 |
| Grid connection (V) | 1~ NPE 220/230 (+20%/-30%) |
| Rated frequency and frequency range (Hz) | 50/60 (45 - 65) |
| Total harmonic distortion (%) | < 2 |
| Power factor | 0.8 - 1 inductive / capacitive |
| Backup power functions | PV Point or Full Backup |
| PV Point rated output power (VA) | 3,000 |
| PV Point connection (V) | 1~ NPE 220/230 |
| PV Point switching time (s) | < 15 |
| Rated Full Backup output power (VA) | 3,000 |
| Full Backup connection (V) | 1~ NPE 220/230 |
| Full Backup switchover time (s) | < 10 |
| Number of battery DC inputs | 1 |
| Maximum battery input current (A) | 22 |
| Battery DC input voltage range (V) | 150 - 455 |
| Battery DC connection technology | 1x BATT+ and 1x BATT- push-in spring terminals 2.5 - 10 mm² |
| Maximum battery DC input / output power (W) | 3,000 |
| Maximum AC-coupled charging power (W) | 3,000 |
| Compatible batteries | Fronius Reserva, Reserva Pro and BYD Battery-Box Premium HVS/HVM, LG FLEX |
| Maximum efficiency (%) | 97,6 |
| European efficiency (%) | 96,8 |
| MPP tracking efficiency (%) | > 99,9 |
| Nighttime power consumption (W) | < 10 |
| Dimensions: height × width × depth (mm) | 530 × 474 × 165 |
| Inverter weight (kg) | 15,4 |
| Degree of protection | IP 66 |
| Safety class | 1 |
| DC / AC overvoltage category | 2/3 |
| Inverter design | Transformerless |
| Cooling | Active cooling technology |
| Installation | Indoor and outdoor installation |
| Ambient temperature range (°C) | -40 to +60 |
| Permissible air humidity (%) | 0 - 100 |
| Noise emission (dB(A)) | < 42 |
| Maximum altitude above sea level (m) | 4,000 |
| DC PV connection technology | 4x DC+ and 4x DC- push-in spring terminals 2.5–10 mm² |
| AC connection technology | 3-pole push-in AC spring terminals, 2.5–10 mm²; 3-pole protective earth (PE) terminals for conductor cross-sections of 2.5–16 mm² and 3x terminals for conductor cross-sections of 2.5–10 mm² |
| DC insulation resistance measurement | Integrated |
| Overload capacity | Operating point shift, power limiter |
| DC disconnector | Integrated |
| Reverse polarity protection | Integrated |
| WSD emergency switch | Integrated |
| WLAN / 2 × Ethernet LAN | Fronius Solar.web, Modbus TCP SunSpec, Fronius Solar API (JSON) |
| 6 digital inputs | Connection to a remote control receiver, energy management |
| 6 digital inputs/outputs | Connection to a remote control receiver, energy management |
| Data logger and web server | Integrated |
| 2 × RS485 | Modbus RTU SunSpec (third-party manufacturer) / Fronius Smart Meter energy meter, battery (GEN24 Plus), Fronius Ohmpilot |
| Certificates and compliance with standards | IEC 62109, IEC 62909, AS/NZS 4777.2, CEI 0-21, ABNT BNR 16149 and 16150, IEC 62116, IEC 61727, G98/G99 |
| Life cycle assessment | In accordance with ÖNORM EN ISO 14040 and 14044 standards (verified by experts from the Fraunhofer IZM institute) |
Full Backup and battery support apply only to GEN24 Plus; Full Backup requires external switching components. Battery power depends on the connected model.

