3 kVA Backup Uninterruptible Power Supply, 120V/220V

3 kVA/1800W backup UPS price is competive and provides 110V/120V AC or 220V/230V/240V AC input & output voltage for options. Optional USB/RS-232 communication port and RJ-11/RJ-45 protection, LED and LCD panels for selections. High quality UPS backup power supply for home and emergency power supply for PC, 3 years warranty and CE certified.

Features

1. Wide range of voltage/frequency input.

• The backup power supply for desktop computer has automatic on-line voltage stabilization and input voltage ranges from 81V to 145V AC or 162V to 290V AC, including 110V UPS power supply, 120V UPS power supply, 230V UPS power supply, 240V backup power supply, which effectively reduces the battery usage rate, thereby extending the battery life, especially suitable for areas where there are large power grid fluctuations and poor power environment.

2. Excellent microprocessor ensures reliable operation.

• The domestic UPS power supply adopts advanced microcomputer (CPU) control technology, faster and more accurate data processing and control.
• With interactive design, the UPS system uses AC to DC to charge the battery and ensures that the built-in battery has enough energy during running.
• Advanced Hall devices and high quality components are adopted in UPS to provide users with a reliable power supply.

3. Intelligent no-load automatic on and off technology.

• When the utility power is supplied, the UPS will automatically turn on and the battery will be charged at the same time.
• The system will automatically detect the load when the UPS is in the shutdown state and power failure. If the load is less than 5%, the backup power unit UPS will be in no-load state and automatically shut down after 1 minute to reduce loss and effectively extend the battery lifespan. High performance UPS emergency power supply.

Specification

KNOWLEDGE BASE --- What Is Back up UPS?

Back up UPS is connected in parallel between the mains and the load and is simply used as a backup power source. When the mains power is normal, the load is completely and directly supplied by the mains, the inverter does not do any power conversion and the battery is powered by an independent charger. On the contrary, when the mains is abnormal, the UPS power unit provides the power for the load completely.

The power back up UPS has simple structure and the cheapest price. It is used for some non-important loads, such as home computers. However, when the mains power fails, the relay will switch the inverter to the load, the switching time is longer, there are usually a few milliseconds interruption, so the battery backup UPS power supply should not be used for some very important computer equipment. High performance backup power supply for TV, laptop, computer, etc.