NSMPPT20 20A 12/24V MPPT solar charge controller

NSMPPT solar charge controller is multi-stage Maximum Power Point Tracking (MPPT) photovoltaic battery charge controller with our own technology. It’s main topology adopts in Buck conversion circuit, and uses MCU to adjust the solar panels working point intelligently in order to make the solar panels output its maximum power. When the circumstances change, the working point of solar panels deviate from the maximum power point, MCU will adjust the solar panels working point based on MPPT calculation to make the solar panels back to the maximum power point again. Compared with PWM controller, MPPT controller can increase the output power of solar panels by 5%~30%. The output power increasing proportion is affected by the factors such as solar panels property, humidity and light intensity. The controller uses wall-mount installing. Connecting terminal makes the wiring area bigger and wiring loss less.

Features
Technical Data
Connection

Advanced MPPT maximum power point tracking technology, tracking efficiency not less than 99.5%
Using high-quality components to improve system performance, the maximum conversion efficiency up to 97%
Fast maximum power point tracking speed, ensuring tracking efficiency while tracking
Accurate Identification and Tracking of the Maximum Power Point
Reliable maximum PV array input power Automatic limit function to ensure no overload under any conditions
Wide PV array maximum power point operating voltage range
The use of LCD design, dynamic display equipment operating data and work status
Accumulated Charge and discharge recording function
Various load control modes: manual mode, light control mode, dual time mode and debug mode
Adaptable to Sealed,Gel,Flooded and other customized battery type
Uses the standard MODBUS communication agreement based on the RS232 \ RS485 communication main line, maximizes satisfies the different demand

Model		NSMPPT20
Input	Max PV voltage	75V
Input	Max charging current	30A
Output	System voltage	12V/24V
	Max battery voltage	24V/32V
	Own consumption	12mA
	Charging control mode	3-stages(MPPT,Absorption,Float)
	Float charge	13.8V/27.6V
	Absorption charge	14.4V/28.8V
	Load disconnection(LVD)	10.8V/21.6V
	Load reconnection(LVR)	12.6V/25.2V
	Temperature compensation	-4mV/ cell/ °C
	Battery type	Lead acid(Gel, Sealed,Flooded)
Other	Maximum efficiency	97%
	interface	LCD, buttons
	Cooling style	Passive cooling
	Maximum wire size	16 mm²
	Ambient temperature	-10 to +50 °C
	Storage temperature	-20 to +60 °C
	Humidity	0 to 90%, no condensation
	Dimension	196mm×111mm×54mm
	Net weight(kgs)	0.526
	Grounding	Positive grounding

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