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Fronius Verto 17.5 Plus SPD 1+2 — is a state-of-the-art three-phase hybrid inverter with a rated power of 17.5 kW, designed as an ideal solution for small businesses, agricultural enterprises and apartment buildings. This device combines high performance with maximum flexibility both for building new solar power plants and for expanding existing ones. The inverter is capable of providing full three-phase backup power (Full Backup) for the entire facility, has integrated security systems of the highest level and supports operation with modern high-voltage batteries.
Technical decoding of the Verto 17.5 Plus SPD 1+2 model
The inverter marking reflects its key architectural and functional features:
- Verto Plus: New adaptive platform of hybrid inverters from Fronius with battery support and integration into the energy sector.
- 17.5: Indicator of the rated output power of alternating current, which is 17 500 W (17.5 kW).
- 3 MPPT: The presence of three independent maximum power point trackers for complex roofs and flexible design.
- SPD 1+2: Factory configuration with an integrated surge protection device on the DC side of type 1+2.
5 key technical advantages of Fronius Verto 17.5 Plus
1. Full Backup power supply
In combination with a battery system, the inverter provides powerful full three-phase backup power for the entire house or enterprise. It is capable of supporting the operation of even large consumers such as heat pumps, cooling systems or fans, with a backup power rating of up to 17 500 VA.
2. Maximum flexibility (3 MPPT at 28 A)
The device is equipped with three high-current MPP trackers, each supporting a maximum useful input current of up to 28 A. Thanks to the integrated Dynamic Peak Manager algorithm, the inverter guarantees optimal generation even under shading conditions.
3. Highest level of safety with integrated SPD 1+2
This modification includes a built-in surge protection device on the DC side of type 1+2 and AC type 2. Together with the Fronius Arc Guard electrical arc detection system (AFCI), this guarantees the highest safety standards in the basic configuration without additional costs for extra components.
4. High DC input power
The inverter allows you to connect solar arrays with a maximum photovoltaic generator power of up to 26 250 W-peak. This significant DC overload allows for a substantial increase in energy generation efficiency in the morning and evening hours.
5. Compatibility with high-voltage batteries
Being a full-fledged hybrid, Verto Plus is compatible with modern high-voltage battery packs such as Fronius Reserva and BYD Battery-Box Premium (HVM, HVS models).
Detailed technical specifications (Model 17.5 Plus)
Input data (DC — Solar panels)
- Max. PV generator power to inverter: 26 250 W-peak.
- Number of MPP trackers: 3.
- Input voltage range (Udc min - Udc max): 150 – 1 000 V.
- Rated input voltage (Udc,r): 600 V.
- Max. useful input current: 28 A per tracker.
- Max. short-circuit current (Isc pv): 50 A per tracker.
Battery connection parameters
- Number of battery inputs: 1.
- Max. charge/discharge current: 50 A.
- Battery input voltage range: 150 – 700 V.
- Max. charging power (DC): 26 250 W.
- Max. discharging power (DC): 17 500 W.
- Max. charging power at AC connection: 17 500 W.
- Connection technology: DC connectors Stäubli MC4.
Output data (AC — Grid)
- Rated power (Pac r): 17 500 W.
- Max. output power: 17 500 VA.
- Rated output current (at 400 V): 25.4 A.
- Grid connection: 3-(N)PE 400/230 V or 3-(N)PE 380/220 V.
- Total harmonic distortion (THD): < 3 %.
- Rated Full Backup power: 17 500 VA.
General parameters and safety
- Maximum efficiency: 98.03 %.
- European efficiency (EU): 97.35 %.
- Dimensions (H×W×D): 865 × 574 × 279 mm.
- Weight (inverter): 43 kg.
- Enclosure protection class: IP66.
- Cooling: Controlled air cooling.
- Surge protection: DC Type 1+2 / AC Type 2.
- Country of manufacture: Austria.
Intelligent monitoring and interfaces
The device has a built-in data logger and web server, supports connection via integrated WLAN and Ethernet LAN (RJ45) modules. The inverter is easily integrated with the Fronius Solar.web monitoring platform. Open interfaces (Modbus TCP SunSpec, JSON) allow convenient integration of Fronius Wattpilot charging stations and Fronius Ohmpilot consumption regulators.
Service, design and warranty from «Total-Energo»
As an official Fronius partner in Ukraine, «Total-Energo» provides professional project support:
- Official distribution: We supply exclusively original Fronius equipment directly from Austria.
- Technical engineering: Assistance in calculating the optimal configuration for three independent trackers with currents of 28 A each.
- Full Backup integration: Design and configuration of the three-phase backup power system and high-voltage battery connection.
- Warranty support: Full range of maintenance services for Fronius equipment in Ukraine.