Guangdong, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Electrical & Electronics
Management System Certification:
ISO 9001
Export Year:
OEM/ODM Service
Sample Available

24V 40A Controller, 24V 40A Solar Controller, 40A Solar Controller manufacturer / supplier in China, offering 24V 40A Solar Charge Controller for 1000W Solar Panel, off Grid Solar Inverter 3000W with LCD Monitoring, Mini Solar System Inverter Pure Sine Wave 1000W and so on.

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24V 40A Solar Charge Controller for 1000W Solar Panel

Get Latest Price
Min. Order / Reference FOB Price
1 Piece US $76-86/ Piece
Port: Shenzhen, China
Production Capacity: 10000PCS/Months
Payment Terms: L/C, T/T, Western Union, Paypal
Condition: New
Certification: ISO, CE
Application: Solar System Controller, Charger Controller, Solar Working Station
Rated Voltage: 12V/24V Auto Identified
Max. Input Voltage: 150V
Rated Charging Current: 40A

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Basic Info

Model NO.: CM 45A
No-Load Loss: 0.7W
Max. Input Power: Check The Specifications
Transfer Efficiency: 98%
Working Temperature: -35~ 65 Celsius
Max. Wiring Dimension: 25mm
Output Current: 20A
Warrenty: 12 Months
Trademark: STCB
Transport Package: Cartons
Origin: Guangdong Shenzhen
HS Code: 9032899090

Product Description

24V 40A Solar Charge Controller for 1000w solar panel

The full name of the MPPT is maximum power point tracking. It is an advanced charging way which could detect the realtime power of the solar panel and the maximum point of the I-V curve that make the highest battery charging efficiency. 

24V 40A Solar Charge Controller for 1000W Solar Panel

1. Can be used in all kinds of bad environment with Aluminum frame.

2. Double crest or multi crest tracing technique design, when the solar panel is under shadow or part of the solar panel is damaged, multi crest will turn up in IV curve, and the controller can still trace the Max. Power Point.

3. Builtin maximum power point tracking algorithm which could promote energy utilization efficiency of pv system. The charging efficiency is 15%~20% higher than PWM mode.

4. Adopting sorts of tracking algorithm to track the best working point of IV curve promptly and accurately, the MPPT efficiency could reach to 99.9%

5. The use of advanced digital power technology, circuit energy conversion efficiency is as high as 98%

6. Four stage charging order mode: MPPT-equalizing charging-boost charging-float charging.

7. With current-limiting charging mode, when the power of solar panel is over-sized and charging current exceeds the rated current, the controller will lower the charging power, which enables the system to work under the rated charging current.

8. It can communicate with PC by communication wires and cables, read or set controller's running parameters and monitor the system operation status.

9. The controller can realize networking operation by the link with telecommunication cable.

10. Have the fault code indication; it helps users confirm the system fault

11. 12V/24V/36V/48V auto identified.

12. Support data storage, the storage span can reach 5 years.

13. It can connect with LCD screen monitoring and the controller parameters are amendable.

14. Built-in temperature sensor, when the temperature exceeds the set value, the charging curreidentified.nt will lower down followed by the decrease of temperature, so as to control the controller's temperature rise.

15. With temperature compensation function to adjust the charge and discharge parameters automatically, which can improve battery service life.

16. Various system protection functions. Including over-charge, over-discharge, overload, overheat, the battery reverses connection protection and so on.

17. TVS lighting protection.

System voltage12V/24V Auto
No-load loss0.7 W to 1.2W
Battery voltage9 to 35
Max. solar input 
100V (25°C), 90V (-25°C)
Max. power point
 voltage range
Battery voltage +2V to 75V
Rated charging 
Rated load current20A
Max. capacitive 
load capacity
Max. photovoltaic 
system input power
260W/ 12V400W/ 12V550W/ 12V
520W/ 24V800W/ 24V1100W/ 24V
≤ 98%
 tracking efficiency
> 99%
Temperature compensation factor-3.0mv/ °C/ 2V (default)
Operating temperature -35°C to +45ºC
Protection degreeIP32
Communication methodRS232
Altitude≤ 3000m
Product dimensions210*151*59.5mm238*173*72.5mm238*173*72.5mm

Using Suggestion

1.The solar panel's terminal voltage may exceed human safety voltage, please use insulating tools and ensure the hands dry.  

2.Please connect wires cautiously and correctly. Although controller has reverse protection and short circuit protection, that doesn't mean it could handle all kinds of wrong, reverse connection and short circuit.

3.Please don't connect the solar panel to the controller's battery port or load port, otherwise the high voltage of the solar panel will damage the controller.

4.Please connect the battery first, then connect other equipments after the battery indicator on the controller is normally on. If connect battery reversely, the voltage of the load port will be the minus value of the battery voltage. That may damage the load equipment.

5.MPPT controller is designed according to solar panel's I-V curve, so when the controller connect the general constant voltage DC source, the controller may not work.

6.Advice is installing in the ventilated and well-cooled environment, because the controller will fever during operation.

7.Choosing the proper cable with enough capacity to avoid extra power loss in the circuit. Too much circuit loss may lead to wrong judgment.

8.Full charge is very important for the battery. The battery should be full charged at least once a month otherwise the battery will suffer permanent damage. The battery can be full charged only when the input power of the battery is more than power consumption of the load.

9.Please do not dip the controller into the corrosive liquid otherwise the controller will be damaged and release harmful gas.

10.Because the battery stores lots of energy, do not allow the battery short circuit in any case. We suggest tandem connect a fuse on the battery

11.The battery may release combustible gas, please far away from the spark.

12.Ensure the children are far away from battery ,pv and controller
Company and factory:
24V 40A Solar Charge Controller for 1000W Solar Panel
Project and Trade show:
24V 40A Solar Charge Controller for 1000W Solar Panel24V 40A Solar Charge Controller for 1000W Solar Panel
Our services:

1.  OEM&ODM services acceptable.

2. 1% pcb board provided .

3. Lots of cooperated agent for shipping by sea or by air.

4. 1year warrenty , if it is quality problem , we will provide the parts for free .


Q1: Why you should choose us?

    ---16 years UPS experiences

    ---Professional team for both oversea and domestic market

     --UPS provider of  SCO meeting 2015 and  Shanghai-Kunming high-speed railway project

    ---Qualified product plus competitable prices

    ---Delivery in time

    ---Sincerely services

Q2: How is your after-sale service?

      ---We provide 12-24 months warranty since the delivery date and free maintenance /

     replacement during  warranty period.

Q3: What kind of certification you have?

    ---ISO9000, CE,ROHS,UL,and so on

    Our products could pass different labor testing according to different countries' requirements.

Q4: Delivery time:

    ---Standard products could be delivered within 15 days; customized products could be

    developed within 45-60days.

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