Economic 30A MPPT Solar Charge Controller

Economic 30A MPPT Solar Charge Controller

If you want to set up one solar system, you need to select several key components, first is solar panel, second is battery, third is solar charge controller, maybe forth is the inverter. Then you can set up one whole solar energy. For battery, 12V batteries are popular. Like all car batteries...

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If you want to set up one solar system, you need to select several key components, first is solar panel, second is battery, third is solar charge controller, maybe forth is the inverter. Then you can set up one whole solar energy.

For battery, 12V batteries are popular. Like all car batteries are 12V, so most of solar systems like to use 12V batteries, especially solar RV systems.

For solar panels, the most popular are 60 cells panels, the working power will be from 260W to 290W. and the price is low, because all the on-grid systems like to use this type models. There are other types, like 36 or 72 cells panel, used for off-grid systems, the price is higher than 60 cells panels. So you can choose 275W cells panel, working voltage Vmp= 30V, Voc=37V.

For solar charge controllers, MPPT solar charge controllers market share is growing fast. The reason is that MPPT controller can increase 15-25% charging current than PWM solar controllers when battery voltage is low. And MPPT can use more solar panels in series than PWM, that means more flexible and easy application than PWM. Like 60 cells panels, you have to use MPPT solar charge controllers, can’t use PWM controllers.

Here is the datasheet of MPPT series solar controllers for your reference, MT3075 is included.

1512109655

MT3075 also has other features like below:

LCD display, with very easy recognition symbols, easy to read. You can check all data according to your request, like charging/discharging current, voltage of panel/battery/load…

RS485 standard MODBUS port, for remote communication.

High max power point tracking efficiency, can reach to 99.9%

High conversion efficiency, can reach to 98%

Perfect EMC and thermal design, CE tested by TUV

External temperature sensor, you can use long wires temperature sensor according to your request.

Also full electronic protection automatically.

 

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