| After-sales Service: | 3years |
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| Warranty: | 3years |
| Condition: | New |
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Shipping Cost:
Estimated freight per unit. |
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| Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Suppliers with verified business licenses
Audited Supplier The Solarthon MPPT Solar Charge And Discharge Controller, manufactured by Guangdong Solarthon Technology Co., Ltd., is designed to optimize the charging process of solar panels by utilizing maximum power point tracking (MPPT).
MPPT, short for maximum power point tracking, is an advanced charging method that constantly monitors the power generation voltage of the solar panel in real time. By tracking the highest voltage and current values, the Solarthon MPPT Controller ensures that the battery is charged with the maximum power output.
This series of controllers features a fully automatic MPPT mode, eliminating the need for user adjustments. As the maximum power point of the solar panel changes with environmental conditions, the controller automatically tracks the panel's maximum power point, guaranteeing optimal energy extraction from the solar array.
Choose from three available options: 20A, 40A, or 60A, depending on your specific needs and requirements.
| 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 |
Company Name: Guangdong Solarthon Technology Co., Ltd.
Q: Are your inverters pure sine wave output?
A: Yes, all our inverters are true pure sine wave.
Q: What kind of output can your inverters provide?
A: Normally, we produce inverters with self-adaptive 110V, 115V, 120V, 220V, 230V, and 240V outputs at 50/60Hz. If you have special requirements, please consult our engineers.
Q: What's the difference between low frequency and high frequency inverters?
A: Low frequency inverters have various protections, strong adaptability to the environment, and more reliable voltage regulation.
Q: What's the difference between pure sine wave and modified sine wave inverters?
A: Pure sine wave output inverters provide power just as good as the public power grid, with low repair rates, long lifespan, no harmonic pollution, and environmental-friendly operation. 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 may not be compatible with modified sine wave.
Q: What appliances can your inverters load?
A: Our inverters can be used with household, office, agricultural appliances, and other inductive loads such as refrigerators, air conditioners, water pumps, etc.
Q: Can you print our company logo on inverters, nameplates, and packaging?
A: Yes, we accept OEM orders.
Q: How to choose the right inverter?
A: Simply tell us your requirements, and our sales team will recommend a suitable inverter for you.
Q: How to solve technical problems?
A: We offer 24-hour after-service consultancy to help you solve technical issues easily.
Q: Do I need a power inverter?
A: Actually, no. A power inverter is not absolutely required in a solar energy system. However, without a power inverter, you will not have 220V or 230V AC power and will solely rely on battery power. This may be acceptable for small RVs or cabins, but most people prefer using normal AC appliances.
Q: What's the difference between 12, 24, and 48 volt inverters?
A: The voltage refers to the input voltage from the battery bank. Higher voltages allow for lower current, enabling the use of smaller wires between the solar panel array and the battery bank. It's important to ensure that the solar panels, inverter, and battery bank all use the same voltage when deciding on a system voltage.
Q: What to do if the product is broken?
A: If any product is faulty, you can send us pictures or videos, and we will study the issue and provide free spare parts of PCB boards for after-sale service.
For more information, click here. Thank you!
Suppliers with verified business licenses
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