40 a solar controller nformation
Intelligent pwm 12 volt 40 amp solar solar charge regulator controller
This intelligent ,multi-purpose solar charge and discharge controller has a very friendly interface of fixed LCD display .Various control parameters can be flexibly set ,fully meet your various application requirements.
Technical Data for NC 40a solar controller
PV input voltage
Rated charge current
12V/24V Auto or 48V
Charge loop voltage drop
Discharge loop voltage drop
PWM 4-stage（bulk, absorption，float, equalized）
Voltage of float charging
Voltage of absorption charging
Duration of absorption charging
Voltage of equalized charging
Duration of equalized charging
Load working mode
Regular control mode
Light control with switch-off point at night and switch-on point before dawn
Light control mode
Self-timing switch on/off mode
Light control voltage
GEL, SLD, FLD and USr(default)
LCD, 3 buttons
AL alloy heat sink
PCB terminal, ≤16mm2
-20 ~ +55 °C
-30 ~ +80 °C
10% ~ 90%, no condensation
196 x 111 x 54 mm
Remote communication，TTL, standard ModBus protocol
Packaging for pwm solar controller
About 40 amp solar controller
• Vivid LCD graphic symbols
• Simple button operation
• Automatic identification of system voltage level
• Intelligent PWM charging mode
• Adjustablecharge-discharge protection
• Automatic temperature compensation
• Settable operation mode of load
• Battery reverse-discharge protection
• Battery low voltage disconnection(LVD)
• Battery reverse connection protection
• Overcurrent protection
Application for solar charge controller
Q1: What's A PWM solar charge controller ?
A :PWM solar charge controller stands for “Pulse Width Modulation”. These operate by making a connection directly from the solar array to the battery bank. During bulk charging, when there is a continuous connection from the array to the battery bank, the array output voltage is ‘pulled down’ to the battery voltage. As the battery charges, the voltage of the battery rises, so the voltage output of the solar panel rises as well, using more of the solar power as it charges. As a result, you need to make sure you match the nominal voltage of the solar array with the voltage of the battery bank. *Note that when we refer to a 12V solar panel, that means a panel that is designed to work with a 12V battery. The actual voltage of a 12V solar panel, when connected to a load, is close to 18 Vmp (Volts at maximum power). This is because a higher voltage source is required to charge a battery. If the battery and solar panel both started at the same voltage, the battery would not charge.
Q2. May I take some samples to test before placing the order ?
A: Yes, but customers need to pay for the sample fees and express fees, and it will be returned when next order is confirmed.
Q3. What’s the price terms can you offer for us?
A: We can accept EXW, FOB, CIF and so on.
Q4. Where is your main market for your products?
A: Most of our products are exported to Southeast Asia, Europe.