Epever DR3210N-DDS solar MPPT controller, 12/24V, 30A, 100V DuoRacer input

Product detailed description

The DuoRacer series MPPT controller 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 several types of main batteries (BATT1) including sealed, gel, flooded, LiFePO4 and Li-NiCoMn batteries that are suitable for RVs, motorhomes, boats, etc. The device automatically detects the voltage of the starter battery system (BATT2) and recharges the battery when conditions are met.
 

The regulator works as an inverter, that is, it can process higher input voltage and lower current to lower voltage (increase current) with high efficiency. So we can use almost any solar panel.
The DuoRacer solar controller is equipped with the latesttechnology MPPT (Maximum PowerPoint Tracking) - Maximum power point tracking with a sophisticated tracking algorithm where the solar module operates at the ideal voltage that the solar module can produce at the highest available power. When compared to a conventional PWM controller, MPPT technology increases charging efficiency by about 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. In case the panel will give higher power, then the controller will only limit it to its nominal max power. The output of the PV panels must not exceed 1.5 times the nominal output of the controller - 580 Wp or 1170 Wp!
 

You can connect solar panels in series, but their output voltage at empty, referred to as Voc, must never exceed the value of the empty 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 value of Voc specified in the parameters of the solar panel is at 25 °C). Therefore, we do not recommend that the value of the stated Voc exceeds 90 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 MPP speed loss and time loss.
- Wider MPP operating voltage range to improve PV module utilization.
- Automatic charge control and charge current limitation function (BATT1).
- High quality and low failure rate of ST, TI and Infineon components to ensure product lifetime.
- Digital control of the adaptive three-stage charging mode circuit to increase the lifetime of BATT1.
- The BATT1 type can be set using the LED/LCD.
- If there is no charging for a long period of time and the PV array has a low voltage (PV<5V), the controller goes into low power mode.
- 100% charge and discharge within 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 ' Voltage BATT1 ' Current BATT1 ' Max. voltage BATT1 ' Min. voltage BATT1 ' Temperature BATT1 ' Battery type BATT1 ' Voltage BATT2 ' Current BATT2 ' Max. voltage BATT2 ' Min. voltage BATT2 ' PV voltage
 

Basic Specifications:
Rated charging power: 390 W (12 V) or 780 W (24 V)
Battery voltage rating 1: 12/24 V DC
Rated battery voltage 2: 12/24 V DC or auto
Battery input voltage range: 8.5 to 32 V
Battery type: sealed (default) / gel / flooded / LiFePO4 / Li-NiCoMn / user
Rated charging current: 30 A
Max. open circuit PV voltage: 100 V (92 V at approx. 25 °C)
Conversion efficiency: max. 98 %
Dimensions: 247.2 x 165 x 68.5 mm
Weight: 1.4 kg