Solarthon MPPT Solar Charge and Discharge Controller
The Solarthon MPPT Solar Charge and Discharge Controller, developed by Guangdong Solarthon Technology Co., Ltd., is an advanced charging solution designed to optimize the power output of your solar panel system.
Maximum Power Point Tracking (MPPT)
MPPT, short for maximum power point tracking, is a cutting-edge charging method that continuously monitors the voltage of your solar panel in real time. By tracking the highest voltage and current values, this controller ensures that your battery is charged with the maximum power output possible.
Automatic and Efficient
With the Solarthon MPPT Solar Charge and Discharge Controller, there's no need for manual adjustments. The controller's maximum power point tracking mode automatically adapts to changing environmental conditions, ensuring that your solar panel system extracts the maximum amount of energy from the sun.
Choose Your Power Capacity
This series of controllers is available in three power capacities: 20A, 40A, and 60A. Whether you have a small residential setup or a larger commercial system, there's a Solarthon MPPT Solar Charge and Discharge Controller to suit your needs.
Model |
STB1220 |
STB1240 |
STB1260 |
Maximum Charging Current |
20A |
40A |
60A |
System Voltage |
12/24V automatic identification |
12/24V automatic identification |
LiFePO4 12.8V 120AH |
MPPT Charging Voltage |
<14.5/29V |
<14.5/29V |
12V/24V <10mA, 48v<12mA |
Maximum Battery Voltage |
35V |
35V |
35V |
Overcharge protection voltage |
10.0~32.0V(lithium battery, default 14.4V) |
Battery Type |
gel, AGM, lead-acid, lithium (default gel battery) |
Maximum PV Voltage |
100V(-20ºC), 90V(25ºC) |
Maximum input power |
260W/520W |
520W/1040W |
750W/1500W |
MPPT Tracking Range |
battery voltage+1.0V)~Voc*0.9 *² |
Output Current |
20A |
30A |
30A |
Operating Mode |
universal controller (default), street light mode, user manual mode |
Maximum MPPT Tracking Efficiency |
>99.9% |
>99.9% |
>99.9% |
Maximum Charging Conversion Efficiency |
98.0% |
98.0% |
98.0% |
Dimensions |
136.6*136.6*67.1mm |
196.5*136.6*97.1mm |
262.5*186.5*97.5mm |
Self Power Consumption |
≤12mA |
≤12mA |
≤12mA |
Communication |
RS485(RJ11 port) |
RS485(RJ11 port) |
RS485(RJ11 port) |
Operating Ambient Temperature |
-20~+55ºC |
-20~+55ºC |
-20~+55ºC |
Storage Temperature |
-25~+55ºC |
-25~+55ºC |
-25~+55ºC |
IP Rating |
IP32 |
IP32 |
IP32 |
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