EPEVER DR3210-DDS Solar MPPT Controller 12 24V DuoRacer 30A Input 100V

EPEVER DR3210-DDS

The MPPT controller DuoRacer series is designed to charge two batteries suitable for caravans, boats, etc. Panel voltage up to 100 V and maximum charging current 30 A, battery 12/24 V , PV max. 390/780 Wp.

The DuoRacer MPPT charge controller is designed to charge two batteries - on-board and starter (shown below as BATT1 and BATT2) in a solar system. This controller supports multiple main battery types (BATT1), including sealed, gel, flooded, LiFePO4 and Li-NiCoMn batteries, which are suitable for RVs, RVs, boats, etc. The device automatically detects the system voltage of the battery starter (BATT2) and after meeting the conditions, the battery is recharged.

The regulator works as an inverter, which means that it can process a higher input voltage and a lower current to a lower voltage (increase the current) with high efficiency. So we can use practically any solar panel. The DuoRacer solar controller is equipped with the latest technology MPPT (Maximum PowerPoint Tracking) - tracking the point of maximum power with a sophisticated tracking algorithm, when the solar module works at the ideal voltage that the solar module can produce at what highest available performance. When compared to a classic PWM controller, MPPT technology increases charging efficiency by approx. 30%. The maximum charging power to the battery of this model is 30 A, which corresponds to a panel power of 390 Wp if you have a 12 V battery, or 780 Wp if you have a 24 V battery. If the panel gives a higher output, then the regulator will only limit it to its nominal maximum output. The power of the PV panels must not be higher than 1.5 times the nominal power of the regulator - i.e. 580 Wp or 1170 Wp!

You can connect solar panels in series, but their output open-circuit voltage, denoted as Voc, must never exceed the value of open-circuit voltage Voc 100 V - exceeding this value will permanently damage the regulator (here, it must be taken into account that the voltage of the solar panel increases with decreasing ambient temperature and the Voc value given in the solar panel parameters is at 25 °C). Therefore, we do not recommend that the value of the specified Voc exceed 90 V)

Main function

• Maximum power point tracking technology with extremely fast tracking speed and tracking efficiency of more than 99.5%.
• Advanced MPPT control algorithm to minimize speed loss and MPP time loss.
• Wider MPP operating voltage range to improve PV module utilization.
• Automatic charging control function and charging current limitation (BATT1).
• High quality and low failure rate of ST, TI and Infineon components to ensure product life.
• Digital control of the adaptive three-stage charging mode circuit to increase the lifetime of BATT1.
• BATT1 type can be set by LED/LCD.
• If there is no charging for a long time and the PV array has a low voltage (PV<5V), the controller will go into low power mode.
• 100% charging and discharging in the operating temperature range.
• AES control signal for car refrigerator.
• Standard Modbus protocol and RS485 communication port (5 V, 200 mA).

Built-in display function

Display loop: PV voltage › PV current › PV energy › Generated energy › BATT1 voltage › BATT1 current › Max. voltage BATT1 › Min. voltage BATT1 › Temperature BATT1 › Battery type BATT1 › Voltage BATT2 › Current BATT2 › Max. voltage BATT2 › Min. voltage BATT2 › PV voltage

Remote display MT11 (optional accessory, not included) supplied can display various operating data and information about system faults. Information can be displayed on the backlit LCD screen, the buttons are easy to operate and the numerical display is easy to read.

Rated charging power: 390 W (12 V) or 780 W (24 V

Nominal voltage of battery 1: 12/24 V DC

Nominal voltage of battery 2: 12/24 V DC or auto

Battery input voltage range: 8.5 to 32V

Battery Type: Sealed (Default) / Gel / Flooded / LiFePO4 / Li-NiCoMn / Custom

Rated charging current: 30 A

Max. PV open circuit voltage: 100 V (92 V at a temperature of approx. 25 °C)

Transfer efficiency: max. 98%

Dimensions: 247.2 x 165 x 68.5 mm

Weight: 1.4 kg