EPEVER DR1206-DDS solar MPPT controller 12 24 V DuoRacer 10A input 60V

EPEVER DR1206-DDS

The DuoRacer series MPPT controller is designed to charge two batteries suitable for caravans, boats, etc. Panel voltage up to 60 V and maximum charging current 10 A, battery 12/24 V, PV max. 130/260 Wp.

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

The controller works as an inverter, which means that it can process higher input voltage and lower current to lower voltage (increase current) with high efficiency. We can therefore use practically any solar panel. The DuoRacer solar controller is equipped with the latest MPPT (Maximum PowerPoint Tracking) technology - tracking the maximum power point with a sophisticated tracking algorithm, when the solar module operates at the ideal voltage that the solar module can produce at the highest available power. Compared to a classic PWM controller, MPPT technology increases charging efficiency by approximately 30%. The maximum charging power into the battery of this model is 10 A, which corresponds to a panel power of 130 Wp if you have a 12 V battery, or 260 Wp if you have a 24 V battery. If the panel produces higher power, the controller will only limit it to its nominal max. power. The power of the PV panels must not be higher than 1.5 times the nominal power of the controller - i.e. 190 Wp or 390 Wp!

You can connect solar panels in series, but their open-circuit voltage, referred to as Voc, must never exceed the open-circuit voltage Voc value of 60 V - exceeding this value will permanently damage the controller (it must be taken into account that the voltage of the solar panel increases with decreasing ambient temperature, and the Voc value specified in the solar panel parameters is at 25 °C). Therefore, we do not recommend that the value of the specified Voc exceed 45 V)

Main features

• 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 and charging current limitation function (BATT1).
• High-quality and low failure rate of ST, TI and Infineon components to ensure product life.
• Digital circuit control of adaptive three-stage charging mode to increase the service life of BATT1.
• BATT1 type can be set by LED/LCD.
• If there is no charging for a long time and the PV array is low voltage (FV<5V), the controller will enter low power mode.
• 100% charging and discharging within the operating temperature range.
• AES control signal for car refrigerator.
• Standard Modbus protocol and RS485 communication port (5V, 200mA).

Built-in display function

Display loop: PV voltage › PV current › PV energy › Generated energy › BATT1 voltage › BATT1 current › Max. BATT1 voltage › Min. BATT1 voltage › BATT1 temperature › BATT1 battery type › BATT2 voltage › BATT2 current › Max. BATT2 voltage › Min. BATT2 voltage › PV voltage

The MT11 remote display (optional, not included) supplied can display various operating data and system fault information. The information can be displayed on the backlit LCD screen, the buttons are easy to operate and the numeric display is easy to read.

Rated charging power: 130W (12V) or 260W (24V)

Rated battery voltage 1: 12/24V DC

Rated battery voltage 2: 12/24V DC or auto

Battery input voltage range: 8.5 to 32V

Battery type: sealed (default) / gel / flooded / LiFePO4 / Li-NiCoMn / custom

Rated charging current: 10A

Max. PV open circuit voltage: 60 V (46 V at approx. 25 °C)

Conversion efficiency: max. 97.4 %

Dimensions: 227.2 x 143 x 58.1 mm

Weight: 0.8 kg

If connection with communication modules is required, a modified connection cable marked CC-RJ45-3.81-150U must be used. The wiring to the connector for DuoRacer controllers is as follows: