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| Warranty: | 3years |
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The Solarthon MPPT Solar Charge And Discharge Controller is designed to maximize the efficiency of your solar panel system. With its advanced maximum power point tracking (MPPT) technology, it continuously monitors the power generation voltage of the solar panel in real time. By tracking the highest voltage and current values, it ensures that your battery is charged with the maximum power output.
This controller is equipped with a fully automatic MPPT mode, which eliminates the need for user adjustment. It intelligently tracks the maximum power point of the solar panel, adapting to changing environmental conditions. This guarantees that the system extracts the maximum energy from the solar array, optimizing its performance.
Manufactured by Guangdong Solarthon Technology Co., Ltd., the Solarthon MPPT Solar Charge And Discharge Controller is available in three variants: 20A, 40A, and 60A. Choose the appropriate model based on your power requirements and enjoy the benefits of enhanced solar charging efficiency.
| 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 |
Thank you for your interest in our inverters. Below are some frequently asked questions and their corresponding answers:
A: Yes, all our inverters are true pure sine wave.
A: Normally, we produce inverters with 110V, 115V, 120V, 220V, 230V, and 240V, 50/60Hz self-adaption. If you have special requirements, please consult our engineers.
A: Low frequency inverters have various protections, strong adaptability to the environment, and are more reliable with voltage regulation.
A: Pure sine wave output inverters are as good as the public power grid, if not better. They have a low repair rate, long lifespan, no harmonic pollution, and are environmentally friendly. On the other hand, modified sine wave output inverters have a negative impact on appliances and cannot load inductive loads such as air conditioners and refrigerators. Certain motor control circuits do not work well with modified sine wave inverters.
A: Our inverters can be used in households, offices, agricultural appliances, and other inductive loads such as refrigerators, air conditioners, water pumps, etc.
A: Yes, we accept OEM orders and can print your company logo on our products and packaging.
A: Please tell us your requirements, and our sales team will recommend a suitable inverter for you.
A: We provide 24-hour after-service consultancy to help you easily solve any technical problems you may encounter.
A: Actually, no. A power inverter is not absolutely required for a solar energy system. However, without a power inverter, you will not have 220 or 230 volts AC and will have to rely solely on battery power. This may be acceptable in a small RV or cabin, but most people prefer to use normal AC appliances.
A: This refers to the input voltage from the battery bank. The main consideration is that at higher voltages, the current is less, allowing you to use smaller wires between your solar panel array and your battery bank. It is important to note that the solar panels, inverter, and battery bank all need to use the same voltage.
A: If any product is faulty, you can send us pictures or videos, and we will study it and provide the necessary spare parts of the PCB board free of charge for after-sale service.
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