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What is the Voltronic collection?
The Voltronic collection groups together inverters from the Axpert and InfiniSolar families, popular for their performance/price ratio in off-grid and self-consumption installations with batteries. They integrate a pure sine wave inverter, AC charger, and photovoltaic controller (MPPT or PWM depending on the series), thus simplifying the panel by concentrating functions in a single device. They are available for 12/24/48 V systems and typical power ratings between 1 kW and 11 kW.
Advantages and limitations
- “All-in-one” solution: inverter + charger + controller (in models with integrated MPPT/PWM).
- Flexible configurations: solar, grid, or battery priority, and backup modes for critical loads.
- Wide availability of spare parts and accessories, with simple installation and commissioning.
- Good option for tight budgets in residential or small business projects.
- Limitations: check Voc/Isc of the PV array against the integrated controller; some models handle lower PV voltage than a high-end external MPPT. Not all allow parallel operation or three-phase configuration.
Applications
- Off-grid homes with solar generation and generator backup.
- Self-consumption with batteries and backup function in case of grid outages.
- Small businesses, farms, irrigation cabins, or telecommunications.
How to choose your Voltronic
- System voltage: 12 V (low power and short distances), 24 V (medium), 48 V (high power and better currents).
- Solar regulation: MPPT recommended for performance; PWM (VP series) suitable for low-voltage PV arrays.
- Continuous and peak power: size according to the sum of loads and start-up peaks (motors, pumps, compressors).
- PV input: check cold Voc and string Isc against the limit of the integrated controller; if you need more margin, consider an external MPPT.
- Battery: compatibility with lithium or lead (AGM/GEL), charge current, and communications/BMS if applicable.
Indicative specifications
| Topology | Inverter-charger with integrated PV controller (MPPT/PWM depending on series) |
| Nominal voltages | 12 V / 24 V / 48 V (depending on model) |
| Typical power | ≈ 1–11 kW single-phase |
| Modes | PV/grid/battery priority, UPS/backup, equalization (lead) |
| PV input | Voc/Isc limits depending on the series (see each model’s datasheet) |
| Accessories | Sensors, communication modules, AC/DC protections, PV structures |
Best practices
- Calculate Voc at minimum temperature and respect the controller’s margin; protect strings with DC protections.
- Separate critical loads in a sub-panel and coordinate circuit breakers/RCDs for AC.
- Configure charge curves appropriate to the battery and check DC cable sections/torque pairs.
- Provide for ventilation and thermal environment; in warm climates, install in cool, dust-free areas.
Comparisons and related accessories
If you are looking for modular alternatives or greater communication, check Victron or TBB. Complete your system with MPPT Controllers, PWM, Lithium Batteries, DC Protections, and AC Protections.
With the Voltronic collection you can build reliable and economical photovoltaic systems for off-grid or self-consumption with backup, keeping the installation simple and optimized for your real needs.
