Midnite Solar Controllers Maximum Power Tracking Solar Controller Model MPPT 20
- Ref Price:
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- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 5 unit
- Supply Capability:
- 150 unit/month
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1. Structure of MPPT Maximum Power Tracking Solar Controller Model MPPT 15/ MPPT 30
The controller is an indispensable part of solar system, this MPPT Maximum power tracking solar controller is remarkable, because it can adjust with intelligence the working voltage of solar panels, so that the solar panels can reach the maximum power spot of the V-A characteristics curve during the work. Compared with the common solar controller, this MPPt Maximum power tracking solar controller can increase the use ratio of the solar panels power by 10-30%.
2. Main Features of MPPT Maximum Power Tracking Solar Controller Model MPPT 20
· Protection against overcharging of the accumulator
· Protection against over discharging of the accumulator
· Protection against reverse discharging of the accumulator to solar panels
· Overload protection and short circuit protection
3. MPPT Maximum Power Tracking Solar Controller Model MPPT 20 Images
4. MPPT Maximum Power Tracking Solar Controller Model MPPT 20 Specification
Type | MPPT20-12/25 | MPPT20-24/50 |
Nominal Voltage | DC：12V | DC：24V |
Voltage scope available for Max. solar power tracking | 12-25V | 24-50V |
Max. open circuit voltage for solar energy | 25V | 50V |
Max. charging current | 20A（referring charging current from accumulator） | |
Max. discharging current | 20A | 20A |
No load losses | ≤8mA | ≤40mA |
Off voltage after full charging | 14V | 28V |
Off voltage when undervoltage | 10.5V | 21V |
Starting recovery voltage | 12.6V | 25.2V |
Efficiency | 95%～97% | |
5. FAQ
We have organized several common questions for our clients, which may help you sincerely:
a) How about your capacity?
We can produce 300,000 set inverter per year currently, 60,000 set solar energy charge controllers. And the product is sold towards domestic and Europe, Australia and Africa etc.
b) How to guarantee the quality of the products?
The company presses the ISO9000 quality management system control product quantity strictly, the export production all passes the relevant national company check (CE, ROHS), and get high evaluation of the customer.
c) How long can we receive the product after signing Sales Confirmation?
Generally speaking, if there is enough quantity of finished products which can meet the clients’ requirement, we can manage the delivery within three to five working days according to the instruction of the payment terms in the Sales Confirmation; if the products need some time to get ready, we will arrange the delivery as soon as possible after the manufacture.
- Q: How do PWM solar controllers differ from MPPT controllers?
- PWM solar controllers and MPPT controllers are both used to regulate the charging of batteries in solar power systems, but they differ in their operation and efficiency. PWM controllers work by rapidly switching the solar panel's current on and off, resulting in a pulsating current flow. This type of controller is suitable for smaller solar systems and it regulates the voltage output to match the battery voltage. However, PWM controllers are less efficient compared to MPPT controllers, particularly when there is a significant difference between the solar panel voltage and the battery voltage. On the other hand, MPPT (Maximum Power Point Tracking) controllers are more advanced and efficient. They continuously track the maximum power point of the solar panel, adjusting the voltage and current to ensure maximum power transfer. MPPT controllers are able to convert the excess voltage into additional current, allowing for higher charging efficiency, especially in larger solar installations or when using panels with varying voltages. In summary, while PWM controllers are simpler and more cost-effective for smaller systems, MPPT controllers are more efficient and better suited for larger systems with varying solar panel voltages.
- Q: What are the advantages of using a solar controller in a solar power system?
- The advantages of using a solar controller in a solar power system are that it helps regulate the charging and discharging of the batteries, protects them from overcharging and over-discharging, increases their lifespan, improves overall system efficiency, and provides detailed information and monitoring capabilities to ensure optimal performance.
- Q: Can a solar controller be used for both off-grid and grid-tied systems?
- No, a solar controller cannot be used for both off-grid and grid-tied systems. Off-grid systems require a solar controller that can manage battery charging and discharging, while grid-tied systems do not require batteries and need a different type of controller to regulate the flow of energy to and from the grid.
- Q: What is the maximum temperature that a solar controller can withstand?
- The maximum temperature that a solar controller can withstand varies depending on the specific model and manufacturer. However, most solar controllers are designed to withstand temperatures up to around 60-70 degrees Celsius (140-158 degrees Fahrenheit).
- Q: What is the maximum charging efficiency for a solar controller?
- The maximum charging efficiency for a solar controller typically ranges from 95% to 98%.
- Q: What is the temperature rating of a solar controller?
- The temperature rating of a solar controller typically refers to the maximum and minimum temperatures at which the controller is designed to operate efficiently and effectively. The temperature rating will vary depending on the specific model and manufacturer, but in general, most solar controllers have a temperature rating between -20°C to 55°C (-4°F to 131°F). It is important to consider this temperature rating when selecting a solar controller for your system, as operating outside of the recommended temperature range can potentially lead to reduced performance or even damage to the controller.
- Q: How does a solar controller prevent damage from power spikes?
- A solar controller prevents damage from power spikes by regulating the flow of electricity from the solar panels to the battery or grid. It monitors the voltage and current levels, and when a power spike occurs, it immediately reduces or cuts off the flow of electricity to protect the system from potential damage.
- Q: Can a solar controller be used with a solar air conditioning system?
- Yes, a solar controller can be used with a solar air conditioning system. A solar controller is designed to regulate and optimize the power output of solar panels, ensuring efficient operation of the system. Since a solar air conditioning system relies on solar energy to power its operations, a solar controller can effectively manage and distribute the power generated by the solar panels to the air conditioning unit.
- Q: Can a solar controller be used with solar panels of different technologies (monocrystalline, polycrystalline, thin-film)?
- Yes, a solar controller can be used with solar panels of different technologies such as monocrystalline, polycrystalline, and thin-film. The solar controller's primary function is to regulate the charging of the batteries and manage the flow of electricity from the solar panels. It does not depend on the specific technology of the solar panels, but rather on the voltage and current output of the panels. Therefore, as long as the solar panels are within the voltage and current range supported by the solar controller, they can be used together regardless of the technology.
- Q: Can a solar controller be used with a battery bank of different capacities?
- Yes, a solar controller can be used with a battery bank of different capacities. The solar controller's main function is to regulate the flow of current from the solar panels to the batteries, ensuring that they are charged efficiently and preventing overcharging. It can work with battery banks of varying capacities by adjusting the charging parameters accordingly. However, it's important to note that using batteries of different capacities may result in uneven charging and discharging rates, potentially affecting the overall performance and lifespan of the battery bank.
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Midnite Solar Controllers Maximum Power Tracking Solar Controller Model MPPT 20
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 5 unit
- Supply Capability:
- 150 unit/month
OKorder Service Pledge
OKorder Financial Service
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