30 Amp Solar Charge Controller

30 Amp Solar Charge Controller

Product name:PWM solar charge controller 30A
Model No.:NC 12/24 - 30D
Working principle:PWM Solar Charge Controller is a photovoltaic (PV) charge controller that tracks the PV array to deliver the available current for charging batteries. When charging, the Controller regulates battery voltage and output current based on the amount of energy available from the PV array and state-of-charge of the battery.



30 amp solar charge controller information 

30A 12V 24V 48V PWM solar panel controller solar charge controller solar system controller

This controller applies in solar photovoltaic systems, which coordinates the working of solar panels, batteries and loads. It adds some protection functions, so that the entire system can be in efficient and safe operation. The extremely low consumption makes this controller suitable for profes-sional applications in telecommunications and traffic management technology.

Technical Data for NC 30a solar controller





PV input voltage


Rated charge current



System voltage

12V/24V Auto or 48V



Rated current


No-load loss


Charge loop voltage drop


Discharge loop voltage drop

≤ 0.10V

Charging mode

PWM 4-stage(bulk, absorption,float, equalized)

Voltage of float charging


Voltage of absorption charging

14.4V(13V~15V) ×1/×2/×3/×4

Duration of absorption charging


Voltage of equalized charging *

14.6V(13V~15.5V) ×1/×2/×3/×4

Duration of equalized charging



10.7V(10V~14V) ×1/×2/×3/×4


12.6V(10V~14V) ×1/×2/×3/×4

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

5V(1V~10V) ×1/×2/×3/×4

Battery type

GEL, SLD, FLD and USr(default)



LCD, 3 buttons

Heat sink

AL alloy heat sink


PCB terminal, ≤16mm2

Working temperature

-20 ~ +55 °C

Storage temperature

-30 ~ +80 °C

Working humidity

10% ~ 90%, no condensation


196 x 111 x 54 mm

Net Weight

400g 410g

IP grade


Optional function

Remote communication,TTL, standard ModBus protocol


Temperature sensor

Packaging for pwm solar controller

About 30 amp solar charge 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 

Ideal for off-grid solar lighting system that needs light and timer control

Solar street light system

Solar garden light system

Solar billboard

Solar detection equipment etc.

Connection diagram 

Our Advantage

Our factory

Our market



Q1:What is a Solar Charge Controller? Why do I need one?

A charge controller, or charge regulator is basically a voltage and/or current regulator to keep batteries from overcharging. It regulates the voltage and current coming from the solar panels going to the battery. Most "12 volt" panels put out about 16 to 20 volts, so if there is no regulation the batteries will be damaged from overcharging. Most batteries need around 14 to 14.5 volts to get fully charged.

Q2:Do I always need a charge controller?

Not always, but usually. Generally, there is no need for a charge controller with the small maintenance, or trickle charge panels, such as the 1 to 5 watt panels. A rough rule is that if the panel puts out about 2 watts or less for each 50 battery amp-hours, then you don't need one.

Q3: Why 12 Volt Solar Panels are 17 Volts?

The obvious question then comes up - "why aren't panels just made to put out 12 volts". The reason is that if you do that, the panels will provide power only when cool, under perfect conditions, and full sun. This is not something you can count on in most places. The panels need to provide some extra voltage so that when the sun is low in the sky, or you have heavy haze, cloud cover, or high temperatures*, you still get some output from the panel. A fully charged "12 volt" battery is around 12.7 volts at rest (around 13.6 to 14.4 under charge), so the panel has to put out at least that much under worst case conditions.

Q4. 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.

Q5. What’s the price terms can you offer for us?

A: We can accept EXW, FOB, CIF and so on.

Q6. Where is your main market for your products?

A: Most of our products are exported to Southeast Asia, Europe.

Hot Tags: 30 amp solar charge controller, China, manufacturers, suppliers, factory, wholesale


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