Gold Member Since 2011
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Foshan Ouyad Electronic Co., Ltd.

Solar Controller, MPPT Solar Controller, Solar Charge Controller manufacturer / supplier in China, offering High Efficiency LCD 48V 30A 40A MPPT Solar Controller, 20kw on Grid / Grid Tie Solar System, on Grid Solar Energy System 5kw and so on.

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Supplier Homepage Product Controller High Efficiency LCD 48V 30A 40A MPPT Solar Controller

High Efficiency LCD 48V 30A 40A MPPT Solar Controller

FOB Price: US $106-162 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $106-162/ Piece
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Production Capacity: 10000PCS Per Month
Transport Package: Carton Box, Plywood, Pallet
Payment Terms: L/C, T/T, Paypal, Money Gram, Western Union

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Basic Info
  • Model NO.: MPS303/304
  • Rated Voltage: 120V/1492V/240V/480V
  • Type: MPPT Function
  • Protection Class: IP54
  • Color: Blue
  • Life Span: 15- 20years
  • Size: 325*220*130mm
  • Specification: CE, ISO, SONCAP, VDE
  • HS Code: 8543709990
  • Application: Collector Controller, Solar System Controller, Charger Controller, Solar Working Station, Voltage Controller
  • Name: Solar Controller
  • Ambient Temperature: 0-40c(Full Load) 40-60c(De-Rating)
  • Charge Current: 30/40A
  • Warranty: 3years
  • Weight: 3.2kg
  • Trademark: OUYAD
  • Origin: Foshan China
Product Description
solar controller
LCD 48V 30A 40A MPPT solar controller
1. MPPT adopted, high efficiency
2. Wide range MPPT operating voltage
3. Multiple protection
4.LCD display
4.3years free warranty
High Efficiency LCD 48V 30A 40A MPPT Solar Controller
Working principle
High Efficiency LCD 48V 30A 40A MPPT Solar Controller
The MPPT function
High Efficiency LCD 48V 30A 40A MPPT Solar Controller
Solar charge system V-A curve
1. Normal Solar Charge Controller: solar panel works at point A, solar panel working voltage is a little higher than battery voltage
Charge Voltage: UA=13.2V
Charge Current: IA=9.8A
Charge Power: PA=13.2*9.8=129.36w
Area in drawing: +
2. MPPT Solar Charge Controller: solar panel works at point B, the solar panel working voltage much higher than battery voltage.
Charge Voltage: UB=18.4V,
Charge Current: IB=9.3A
Charge Power: PB=18.4*9.3=171.12w
Area in drawing +
Comparison: The power B is more than power A.

P/ PA =(PB- PA)/ PA=32.3%

1. We adopt the principle of MPPT and advanced Microprocessor Controlled and DSP technology.
2. Improve PV system output efficiency of 20%-30%.
3. Wide input DC voltage range
4. Digital intelligent control, use light signal transmission to control signal inner system for transfer with protection from interference and power loss
5. Solar controller charge module with electric plug, which is more convenience for adding adequate capacity maintenance
6. Battery charge control adopt three stags eg, equilibrium, boost, and float
7. DC and AC power distribution cabinets designed with lighting protection, . Connecting wires could come out from the top or bottom which is easy to connect.
8. When the temperature is 50° C, system will reach rated output.
9. High reliability, no need for maintenance, lifetime up to 20 years
10. LCD display which shows PV voltage, charge voltage and charge current

Rated Voltage48VDC
Rated charge current30A40A
Load current15A
Input voltage range52-88V
Max PV open circuit array voltage88VDC
Typical idle consumptionAt idle < 10mA
Overload protection (DC load)2.0*Inom>5s
1.25*Inom temperature controlled
Bulk charge58.4(default)
Floating charge53.6(default)
Equalization charge56V(default)
Overcharge disconnection59.2V
Over charge recovery54.4V
Over discharge disconnection43.2(default)
Over discharge reconnection49.2V
Temperature compensation-52.8mV/ºC
Lead acid battery settingsAdjustable
NiCad battery settingAdjustable
Load control mode1. Low Voltage Reconnect(LVR): Adjustable
2. Low Voltage Disconnect(LVD): Automatic disconnection
3. Reconnection: Includes warning flash before disconnect and reconnection
Low voltage reconnect48.0-56.0Vdc
Low voltage disconnect42.0-50.0Vdc
Ambient temperature0-40ºC(full load)  40-60ºC(de-rating)
AltitudeOperating 5000m, Non-Operating 16000m
Protection classIP21
Battery temperature sensorBTS- optional remote battery temperature sensor for increased charging precision
Terminal size(fine/single wire)#8 AWG

Sales manager :Fairy
Tel:0086-757 22133318

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Mr. Robert Hu
Overseas Manager
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