MPPT load controller Victron BlueBLOCK 250/70 70A 12V / 24V / 36V / 48V

Victron BlueSolar MPPT 250/70: Ultrafast tracking, automatic multivoltage management and efficient connectivity

The design of isolated self-consumption facilities or systems with accumulation requires high-end components capable of adapting to multiple voltages and mitigating losses due to climatic fluctuations. The regulator Victron Blue Talar MPPT 250/70 it is a smart reference controller in the photovoltaic sector, ideal to ascend the power generated by the solar modules and ensure fluid and safe load transitions to the battery bank.

MPPT Tracking Immediate Response and Flex Voltage Adaptability

The main technical virtue of this team of Victron faced with traditional PWM regulators or standard controllers lies at their reaction speed. Thanks to its technology ultrafast tracking of the maximum power point (MPPT), the device constantly readjust the electrical parameters of input on days with variable clouds or partial shades. This dynamic optimization allows to recover and store up to 30% more daily energy than conventional systems, guaranteeing superior photovoltaic performance.

At the level of integration, the Bluesolar MPPT 250/70 stands out for its versatility by incorporating automatic voltage detection, which allows it to be coupled with total autonomy to battery banks that work at 12V, 24V, 36V or 48V. The dimensioning of the catchment field is extremely simple, since the regulator intelligently administers a nominal photovoltaic power of up to 1000W to 12V, 2000W at 24V, 3000W to 36V and reaches a roof of 4000W in 48V systems. In case the Solar field momentarily exceeds these powers, the internal software will automatically limit the output to protect the circuit. If you plan to perform the mechanical assembly of solar panels in residential or industrial decks to feed this equipment, we recommend ensuring the rigidity of the set by examining our options of structures for aluminum of high durability.

Advanced electronic security and monitoring VE.Direct

The reliability of the circuit of this 70A controller is based on its strict safety barriers. To safeguard the internal components of catastrophic surge, the configuration of the String must respect an absolute limit of 245V maximum tension in open circuit (VOC) and a short circuit intensity (ISC) that does not exceed any concept 35a. The injection process is activated intelligently by a thermal and voltage differential: the system starts when the photovoltaic voltage is at least 5V above the battery voltage, and it is maintained by requiring it to be 1V higher during its operation everyday.

Through its integrated port VE.Direct, the regulator allows a fluid local connectivity (using optional accessories) with mobile applications for smartphones, simplifying monitoring tasks, historical production data analysis and customization of load phases according to accumulator chemistry. If you are evaluating a direct network injection project to lower daytime power consumption without the need for physical storage, you can consult the inverters of STRING Suitable in our specialized menu inverters networking.

Technical characteristics:

• Nominal voltage of the battery bank: Automatic detection in 12V / 24V / 36V / 48V ranges.

• Nominal load current: 70 a.

• Photovoltaic power (FV) Maximum nominal:

  • In 12V: 1000 W systems.

  • In 24V Systems: 2000 W.

  • In 36V systems: 3000 W.

  • In 48V systems: 4000 W.

• Maximum tension of open circuit (VOC): 245 V DC.

• Maximum short circuit intensity (ISC): 35 A (strict limit to avoid damage to the controller).

• Starting conditions: Battery minimum fv voltage + 5V to start; and battery + 1V during work.

• Communications port: Connector VE.Direct native for data link and monitoring by mobile app.

• Physical dimensions (TR model): 185 mm wide x 250 mm high x 95 mm deep.

• Net weight of the device: 3 kg.

• Commercial availability: In stock.

FAQ Section (Frequently Asked Questions)

1. What advantages does the ultra-fast MPPT follow-up provide Victron compared with a PWM regulator? The ultrafast MPPT algorithm continuously and immediately locates the optimum voltage and current of the solar field. Unlike a classic PWM regulator, which strength to the plates to work on the battery voltage losing efficiency, the BlueSolar system adapts to changing climatic conditions (such as passing clouds) to produce up to 30% more energy with them .
2. What happens if I connect a power of solar upper than recommended for my battery voltage? The recommended dimensioning is designed to optimize the load, but for design reasons or roof space install a photovoltaic field that exceeds nominal limits (for example, more than 4000W in a 48V system), the regulator Victron BlueSolar Autolimitar The output power to the maximum set by its safety circuit to avoid overheating or faults.
3. Why is it essential that short-circuit intensity (ISC) do not exceed 35A? The short circuit intensity of 35A is the maximum physical threshold of tolerance that support the terminals and electronic tracks of the regulator. Connect an arrangement of solar in parallel that overpasses this input amperage puts at risk the operation of the equipment and could cause irreparable damage to the internal circuit, invalidating the factory warranty.
4. What are the minimum voltage conditions that this regulator requires to start each morning? For the regulator to start the battery charge process, it is a technical requirement that the voltage generated by the solar is at least 5V superior to the current battery voltage. Once the system has been launched, the regulator will continue to load and extract energy as long as the tension of the plates remains at least 1V above the battery.
5. How can I see the production data of my photovoltaic installation on the mobile phone? The regulator has an integrated data port called VE.Direct. Connecting an optional wireless communication accessory (such as the Bluetooth Smart Dongle Victron) To this port, you can link the equipment with the official application on your smartphone to monitor production in real time, configure voltages and review the accumulated energy history.