4000 Watt Off Grid Solar Inverter Charger, 24V/48V

Battery Terminal

The battery positive terminal serves as the power input, receiving direct current (DC) from the battery bank. This connection enables efficient energy transfer from the battery to the inverter, supporting uninterrupted power supply. Conversely, the negative terminal completes the circuit, facilitating the flow of electrons from the battery to the off-grid 4000-watt inverter.

LCD Display

LCD enhances user convenience by displaying clear, detailed information, reducing the need for external meters, and helping users diagnose and resolve issues quickly. In addition, its low power consumption ensures minimal impact on the efficiency of off-grid solar inverters, making them ideal for off-grid applications.

Cooling Fan

It prevents overheating, ensuring the inverter operates efficiently and extends its lifespan. By maintaining an optimal temperature, it reduces the risk of component failure and enhances reliability. The cooling fan also improves energy efficiency by allowing the pure sine wave off-grid solar inverter to handle higher loads. Efficient cooling minimizes power loss and protects sensitive electronic components.

Features

• Pure sine wave output for compatibility with loads of different types.
• The inverter charger has a mode for charging the battery from the AC supply with a charging capability of 0-30A.
• Visualization of the equipment's operating status through a digital LCD.
• Automatically transfers between battery and line modes. It enhances system performance, reliability, and user experience in off-grid applications.
• Pure sine wave output (THD < 3%) for a wide range of applications and harsh environments.
• A wide range of input voltages, accurate output, and fully automatic voltage stabilization, maximizing flexibility and efficiency.
• Overall protection functions: battery overvoltage protection, battery undervoltage protection, overload protection, short-circuit protection, and overtemperature protection.

Off-Grid Inverter for Solar Panel System:

• Off Grid Solar Inverter User Manual
• Off Grid Solar Inverter Wifi Plug Pro

What are the requirements of electrolytic capacitors for PV solar inverter?

As an important part of photovoltaic power generation, the main function of solar inverters is to convert DC from photovoltaic modules into AC. So, what are the requirements of electrolytic capacitors for photovoltaic solar inverters?

• High voltage. General high-power photovoltaic solar inverters incorporate the converted AC directly into the high-voltage power grid, but from the safety point of view, the output voltage of photovoltaic battery pack is generally not higher than 900V, two 450V electrolytic capacitors can be selected in series, but in order to improve security, two 500V electrolytic capacitors can be selected in series. Therefore, high voltage capacitors are needed to reduce the series connection of capacitors and improve reliability.
• High ripple resistance. In general, the current flowing through capacitors of photovoltaic inverters is 0.44 times of the effective value of the output current of the inverters. For example, the output voltage of photovoltaic inverters is 250V, the output current corresponding to 1 kW output power is about 2.54A, and the current flowing through DC bus capacitors is 1.12A. DC bus capacitors of 100 kW PV solar inverters need to flow through 112A RMS current. The rated current of the selected capacitors should not be lower than this value. If the rated current of an electrolytic capacitor can not meet the requirements, it is necessary to select multiple electrolytic capacitors in parallel to obtain the required current value. Therefore, a single electrolytic capacitor with high ripple resistance is required to reduce the number of parallel electrolytic capacitors and improve the overall reliability.