MPPT 40A SRNE solar regulator - ML2440

The new range of SRNE solar regulators offers optimal MPPT tracking efficiency of 99.9% as well as charging efficiency of 15 to 20% higher than PWM.

With advanced dual-peak or multi-period tracking technology, when the solar panel is shaded or part of the panel, resulting in multiple peaks on the I-V curve, the controller is still able to accurately track the maximum power point.

A built-in power point tracking algorithm significantly improves the energy usage efficiency of photovoltaic systems and increases charging efficiency by 15% to 20% compared to the conventional PWM method.

A combination of several tracking algorithms allows precise tracking of the optimal working point on the I-V curve in an extremely short time.

The product boasts optimal MPPT tracking efficiency of up to 99.9%.

Advanced digital power technologies increase the circuit's power conversion efficiency up to 98%.

Charging program options are available for different battery types, including gel batteries, sealed batteries, open batteries, lithium batteries, etc.

The controller has a current limited charging mode. When the solar panel power exceeds a certain level and the charging current is higher than the rated current, the regulator will automatically step down the load and bring the charging current to the rated level.

Immediate start of large capacitive charging current is supported.

Automatic recognition of battery voltage is supported.

LED fault indicators and an LCD screen that can display information in the event of an abnormality allow users to quickly identify system faults.

Historical data storage function is available and data can be stored for up to one year.

The controller is equipped with an LCD display with which users can not only check the data and operating states of the device, but also change the parameters of the controller.

The controller supports standard Modbus protocol, meeting the communication needs of various occasions.

The controller uses a built-in overheating protection mechanism. When the temperature exceeds the set value, the charging current decreases in linear proportion to the temperature in order to curb the temperature rise of the regulator, thereby preventing the controller from being damaged by overheating.

With a temperature compensation function, the controller can automatically adjust charging and discharging parameters to increase battery life.

Model ML2420 ML2430 ML2440
System voltage 12V/24V auto
No-load loss 0.7W to 1.2W
Battery voltage 9 to 35
Max solar input voltage 100V (25°C), 90V (-25°C)
Max power point voltage range Battery voltage +2V to 75V
Rated charging current 20A 30A 40A
Rated load current 20A
Max capacitive load capacity 10,000uF
Max photovoltaic system input power 260W / 12V
520W/24V 400W/12V
800W/24V 550W/12V
1100W/24V
Conversion efficiency ≤ 98%
MPPT tracking efficiency > 99%
Temperature compensation factor -3.0mv/°C / 2V (default)
Operating temperature -35°C to +45°C
Protection degree IP32
Weight 1.4 kg 2 kg 2 kg
Communication method RS232
Altitude ≤ 3000m
Product dimensions 210*151*59.5 mm 238*173*72.5 mm 238*175*72.5 mm