MPPT Solar Charge Controller ML 48V Series

NOB: NA-ML-4830

An MPPT, or maximum power point tracker is an electronic DC to DC converter that optimizes the match between the solar array (PV panels), and the battery bank or utility grid. To put it simply, they convert a higher voltage DC output from solar panels down to the lower voltage needed to charge batteries. The maximum power point tracking (MPPT) is a higher efficient DC-DC converter technology compared to “shunt controller” and “pulse width modulation (PWM)” technologies.

ENQUIRY
Product Features:
  1. With the PowerCatcher MPPT technology, the controller is able to track the maximum power point of solar panels even in a complex environment. It has a higher response speed and tracking efficiency compared with those controllers with traditional MPPT technology.
  2. The maximum power point tracking algorithm can significantly improve the energy utilization efficiency of photovoltaic systems. The charging efficiency is 15% to 20% higher than the conventional PWM method.
  3. Automatic charging voltage regulation function: When there is a battery open circuit or lithium battery BMS overcharge protection, the controller battery terminal will output at the rated charging voltage value.
  4. MPPT tracking efficiency is up to 99.9%.
  5. Advanced digital power technology raises the circuit energy conversion efficiency to 98%.
  6. Support charging lithium batteries, gel batteries, sealed batteries, and vented batteries, etc.
  7. The controller features a limited current charging mode. When the solar panel power exceeds a certain level and the charging current is larger than the rated current, the controller will automatically lower the charging power and bring the charging current to the rated level.
  8. Support automatic identification of lead-acid battery voltage.
  9. The controller can be connected with the LCD screen or Bluetooth module so that users can not only check operating data and status but also modify the controller parameters.
  10. The controller is available for standard Modbus protocol and meets different communication needs.
  11. The controller has an overheat protection mechanism. When the temperature exceeds the set value, the charging current will decline in linear proportion, and discharging will be shut off so as to curb the temperature rise of the controller and keep the controller from being damaged by overheat.
  12. Featuring a temperature compensation function, the controller can automatically adjust charging and discharging parameters in order to extend the lifespan of the battery.
  13. Solar panel short circuit protection, battery open circuit protection, and TVS lightning protection, etc.
Product Parameter
Model ML4830 ML4860
System voltage 12V/24V/36V/48V Auto
No-load loss 0.7W-1.2W
Battery Voltage 9V ~ 70V
Max. solar input voltage 150V (25°C), 145V (-25°C)
Max. PowerPoint voltage range Battery voltage +2V to 120V
Rated charging current

30A

60A
Rated load current 20A
Pacitive load capacity 10000uF
PV System Max Input Power

400W/12V/ 800W/24V

1200W/36V/ 1600W/48V

800W/12V/ 1600W/24V

2400W/36V/ 3200W/48V
Conversion efficiency ≤ 98%
MPPT tracking efficiency ＞ 99%
Temperature compensation factor -3mv/°C/2V (default)
Operating temperature -35℃ to +45℃；
IP protection degree IP32
Net  weight 2.3KG 3.6KG
Communication method RS232 RS485
Altitude ≤ 3000m
Dimensions 226*182*81mm 285*205*93mm

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