Gold Member Since 2013
Guangzhou Queenswing Solar Energy Co., Ltd.

Solar Regulator, Solar Regulator MPPT, Regulator manufacturer / supplier in China, offering 12/24V 40A MPPT Solar Panel Charger Regulator with LCD (QW-SR- ML2440), Wall Mounted Inbuilt PWM Solar Controller 1000va Integrated Hybrid Solar Power Inverter, Hybrid Solar Inverter 3000va Built-in 50A PWM Solar Controller DC Solar Inverter and so on.

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Supplier Homepage Product MPPT Solar Charge Controller 12/24V MPPT controller 12/24V 40A MPPT Solar Panel Charger Regulator with LCD (QW-SR- ML2440)

12/24V 40A MPPT Solar Panel Charger Regulator with LCD (QW-SR- ML2440)

Purchase Qty.:
(Pieces)
1-19 20-49 50+
FOB Unit Price: US $125.67 US $119.18 US $117.32
Purchase Qty. (Pieces) FOB Unit Price
1-19 US $125.67
20-49 US $119.18
50+ US $117.32
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Port: Guangzhou, China
Production Capacity: 50000/Month
Payment Terms: T/T, Western Union, Money Gram, Cash

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Basic Info
  • Model NO.: QW-SR- ML2440
  • Certification: CE
  • Rated Voltage: 12V/24V/48V Auto
  • System Voltage: DC12V/24V Auto Identification
  • Charging Way: Three Stages
  • Efficiency: 90%~99%
  • Security Level: IP32
  • Gross Weight: 2.5kg
  • Transport Package: 1unit/Standard Packing
  • Origin: Guangzhou, China
  • Condition: New
  • Application: Solar System Controller, Charger Controller, Lighting Controller, Solar Working Station, Voltage Controller
  • Charging Current: 40A
  • Charging Mode: MPPT
  • Display: LCD&LED
  • Temperature Protection: 95 Degree
  • Size: 310*160*70mm
  • Trademark: QUEENSWING
  • Specification: CE, Rohs, SGS
  • HS Code: 8504409940
Product Description
12/24V 40A MPPT Solar Panel Charger Regulator with LCD (QW-SR- ML2440)

MPPT(Maximum Power Point Tracking) Solar charge controller capable of real-time detection of solar panel power voltage, and track the highest voltage and current values (VI), The maximum power output of the system in order to charge the battery.12/24V 40A MPPT Solar Panel Charger Regulator with LCD (QW-SR- ML2440)
ModelML2420ML2430ML2440
Battery voltage12V/ 24V
Max. solar panel voltage100V (25°C), 90V (-25°C)
Charging current20A30A40A
Discharging current20A
Model Rated charging current Rated discharging current Battery wire diameter 
(mm2) 
Load wire diameter (mm2)
ML242020A 20A 55
ML2430 30A 20A 65
ML2440 40A 20A 105

Exterior and Interfaces

 12/24V 40A MPPT Solar Panel Charger Regulator with LCD (QW-SR- ML2440)
 
No.ItemNo.Item
1Charging indicator10Battery "+" interface
2Battery indicator11Battery "-" interface
3Load indicator12Load "+" interface
4Abnormality indicator13Load "-" interface
5LCD screen14External temperature sampling interface
6Operating keys15RS232 communication interface
7Installation hole  
8Solar panel "+" interface  
9Solar panel "-" interface  
  
This controller has 5 load operating modes which will be described below:
No.ModeDescriptions
0Sole light control (nighttime on and daytime off)When no sunlight is present, the solar panel voltage is lower than the light control on voltage, and after a time delay, the controller will switch on the load; when sunlight emerges, the solar panel voltage will become higher than the light control off voltage, and after a time delay, the controller will switch off the load.
1 to 14Light control + time control 1 to 14 hoursWhen no sunlight is present, the solar panel voltage is lower than the light control on voltage, and after a time delay, the controller will switch on the load. The load will be switched off after working for a preset period of time.
15Manual modeIn this mode, the user can switch the load on or off by the keys, no matter whether it's day or night. This mode is designed for some specially purposed loads, and also used in the debugging process.
16Debugging modeUsed for system debugging. With light signals, the load is shut off; without light signals, the load is switched on. This mode enables fast check of the correctness of system installation during installation debugging.
 
17Normal on modeThe energized load keeps outputting, and this mode is suitable for loads which need 24-hour power supply.
12/24V 40A MPPT Solar Panel Charger Regulator with LCD (QW-SR- ML2440)
Connecting to external temperature sampling interface
Connecting communication cable
Connecting power cable
Power on
 

Protection Functions

  • Waterproof 
Waterproof level: IP32 
  • Input power limiting protection 
When the solar panel power exceeds the rated power, the controller will limit the solar panel power under the rated power so as to prevent excessively large currents from damaging the controller and enter into current-limited charging. 
  • Battery reverse connection protection 
If the battery is reversely connected, the system will simply not operate so as to protect the controller from being burned. 
  • Photovoltaic input side too high voltage protection 
If the voltage on the photovoltaic array input side is too high, the controller will automatically cut off photovoltaic input. 
  • Photovoltaic input side short-circuit protection 
If the photovoltaic input side gets short-circuited, the controller will halt charging, and when the short circuit issue gets cleared, charging will automatically resume. 
  • Photovoltaic input reverse-connection protection
When the photovoltaic array is reversely connected, the controller will not break down, and when the connection problem gets solved, normal operation will resume. 
  • Load overpower protection
When the load power exceeds the rated value, the load will enter into delay protection. 
  • Load short-circuit protection
When the load is short-circuited, the controller can implement protection in a quick and timely manner, and will try to switch on the load again after a time delay. This protection can be carried out up to 5 times a day. Users can also manually address the short circuit problem when finding the load is short-circuited via the abnormality codes on the system data analysis page. 
  • Reverse charging protection at night
This protection function can effectively prevent the battery from discharging through the solar panel at night.
  • TVS lighting protection.
  • Over-temperature protection 

12/24V 40A MPPT Solar Panel Charger Regulator with LCD (QW-SR- ML2440)12/24V 40A MPPT Solar Panel Charger Regulator with LCD (QW-SR- ML2440)
12/24V 40A MPPT Solar Panel Charger Regulator with LCD (QW-SR- ML2440)

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