| 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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Audited Supplier The Solarthon MPPT Solar Charge and Discharge Controller, developed by Guangdong Solarthon Technology Co., Ltd., is an advanced charging method that maximizes the power output of your solar panel system. The MPPT, which stands for maximum power point tracking, continuously monitors the power generation voltage of your solar panel in real-time. It automatically tracks the highest voltage and current values, allowing the controller to charge your battery with maximum power output.
This series of controllers features a fully automatic maximum power point tracking mode, eliminating the need for user adjustment. As the maximum power point of your solar panel changes with environmental conditions, the controller intelligently tracks and adjusts to ensure the maximum energy extraction from your solar array. This ensures that you can harness the most energy from your solar panel system, maximizing its efficiency and performance.
Choose from three different models, each with different amperage options: 20A, 40A, and 60A. Whether you have a small-scale residential system or a larger commercial setup, Solarthon MPPT Solar Charge and Discharge Controller has the right model to meet 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 |
Q: Are your inverters pure sine wave output?
A: Yes, all our inverters provide true pure sine wave output.
Q: What kind of output can you provide?
A: Normally, we produce inverters with 110V, 115V, 120V, 220V, 230V, and 240V, self-adapting to 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 offer various protections, strong adaptability to different environments, voltage regulation, and higher reliability.
Q: What's the difference between pure sine wave inverters and modified sine wave inverters?
A: Pure sine wave output inverters provide power comparable to the public power grid, with low repair rates, long lifespan, no harmonic pollution, and environmental friendliness. Modified sine wave output, on the other hand, can have a negative impact on appliances, especially inductive loads like air conditioners and refrigerators. Certain motor control circuits may also be incompatible with modified sine wave output.
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, and water pumps.
Q: Can you print our company logo on inverters, nameplates, and packaging?
A: Yes, we accept OEM orders and can customize the products accordingly.
Q: How do I choose the right inverter?
A: Simply tell us your requirements, and our sales team will recommend a suitable inverter for you.
Q: How can I solve technical problems?
A: We offer 24-hour after-service consultancy to assist you in easily resolving any technical issues.
Q: Do I need a power inverter?
A: While not absolutely required, a power inverter is necessary if you want to have 220 or 230 volts AC power and use normal AC appliances. Without a power inverter, you'll solely rely on battery power, which may be acceptable in small RVs or cabins.
Q: What's the difference between 12, 24, and 48 volt inverters?
A: The numbers refer to the input voltage from the battery bank. Higher voltages allow for lower currents, enabling the use of smaller wires between your solar panel array and the battery bank. It's important to ensure that the solar panels, inverter, and battery bank all operate at the same voltage.
Q: What should I do if the product is broken?
A: In the event of any faulty product, please send us pictures or videos for evaluation. We will provide the necessary spare parts for the PCB board free of charge as part of our after-sale service.
For more information, please contact us at Guangdong Solarthon Technology Co., Ltd.
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