Photonic Universe is pleased to introduce a powerful 6,000W 48V low-frequency pure sine wave inverter with a built-in 35A battery charger and a peak power level of 18000W. But what exactly is an inverter? An inverter is a device that converts battery output (DC, or direct current) into 230V AC mains electricity (alternating current), the type of electricity supplied by utility companies to power standard domestic appliances like TVs, fridges, radios, lights, and to charge laptops or mobile phones. If you have a battery, connecting a power inverter will allow you to run household appliances in areas with no access to mains electricity, such as in a motorhome, caravan, boat, farm, or any other remote location. Inverters are also perfect for off-grid and backup systems in case of accidental power cuts.

This inverter features a pure sine wave output, meaning the 230V AC output harmonically follows a smooth sine wave, almost identical to normal mains electricity. Pure sine wave output is far superior to square sine wave or modified sine wave output for running appliances, as it is suitable for a broader range of appliances and is more efficient.

So, what is a low-frequency inverter? Low-frequency inverters have a few advantages compared to higher frequency inverters, namely their peak power capacity and their reliability. Low-frequency inverters can operate at a peak power level of up to 300% of their nominal power level for several seconds, while high-frequency inverters can only operate at 200% of nominal power for a fraction of a second. Low-frequency inverters operate using transformers instead of electronic components, resulting in a stronger, sturdier inverter that is less prone to damage.

Key features of this inverter include a fast built-in battery charger with charging current options ranging from 7A to 35A, advanced 4-step progressive charging, and the ability to choose from several battery types. If required, the battery charger can be permanently switched off. If you would like to learn more about low-frequency inverters, check out our article "Introduction to Low-Frequency Inverters".

You can choose either DC or AC priority mode for the inverter. In AC priority mode, when the inverter is connected to the mains, the batteries will be consistently charged by mains power until fully charged. Appliances will also be powered by mains by default. In DC priority mode, appliances will always be powered by the batteries, even if the mains input is connected. Once the battery charge drops below a certain threshold, the mains input will automatically kick in to charge batteries and power appliances.

The inverter also features a power-saving mode that allows it to work in "power on demand" standby mode by only generating power when the load is connected, thus saving energy and battery power. Furthermore, it has a UPS (Uninterrupted Power Supply) system that provides constant power for your appliances when the inverter is working in AC (mains) mode and the mains power supply shuts down. The inverter will then automatically switch to the battery, ensuring your appliances remain powered.

Moreover, there's a Bypass mode available when the mains power is connected (in AC priority mode). In this mode, the AC mains input is automatically linked to the AC output of the inverter, bypassing the DC-to-AC energy-converting circuits of the unit, which increases efficiency and ensures the quality of the AC output matches the AC input.

The inverter also boasts a detailed LCD display, showing voltages, battery status, current operating mode, and other important information. It is capable of accepting input AC power from a generator, with the recommended nominal power of the generator being twice the rated power of the inverter.

Various settings allow the user to customize the inverter, such as output voltage, output frequency, input voltage thresholds, battery type, and capacity. The inverter's 6000W nominal power and 18000W peak power ratings make it suitable for all standard household appliances, including kitchen appliances such as a fridge, microwave, TV, power tools, vacuum cleaner, cooker, oven, dishwasher, washing machine, and air conditioning unit.

Additionally, the inverter is equipped with important protection and safety features, including overload, over-temperature, low battery, and overcharge protection. For more information, you can click on the Details and Specifications tab.

Specifications:

- Input: 48V DC

- Output voltage: 208V / 220V / 230V / 240V (programmable in settings)

- Output frequency: 50Hz / 60Hz / auto (programmable in settings)

- Output wave: pure sine wave

- Input voltage range: normal or wide (programmable in settings)

- Battery bank type: sealed lead acid, gel, agm, calcium (programmable in settings)

- Battery charging current options: 7A / 14A / 21A / 28A / 35A (programmable in settings)

- Power rating: 6000W nominal, 18000W peak

- Nominal inverter efficiency: 88%

- Power saving mode

- UPS and bypass mode

- AC / DC priority mode

- Minimum battery voltage: 40V

- Low battery alert: 42V

- Protection against: overload, overheat, low battery, overcharge

- Overcharge protection voltage: 62.8V

- Power Factor: 0.9-1.0

- Operating temperature range: 0 - 40°C

- Weight: 40 kg

- Size: 60.5 x 21.8 x 17.9 cm

This product is covered by a 1-year manufacturer warranty and comes with a detailed user manual (see Documents tab) that explains wiring, installation, and operations. Please note that this inverter has AC power screw terminals instead of mains power sockets, enabling it to be connected to one or several AC mains power sockets using suitable AC cables. In the UK, 3-pin UK type mains sockets can be used, and in Europe, it can be connected to standard European mains sockets. Additionally, please note that this inverter is not supplied with cables. Detailed recommendations for cable length and thickness are available in the user manual. If you need help with installation or have any technical questions, we can provide FREE support. Feel free to contact us via email or phone.

The following documents are available to download:

- User manual for 6000W 48V pure sine wave low-frequency inverter with charger

6000W 48V low frequency pure sine wave off-grid inverter (peak power 18000W)