Uninterruptible Power Supply QOLTEC 52282 3kVA Line-Interactive with LCD display

Online UPS 3kVA 3000W with power factor 1.0, LCD display, EPO and USB interfaces designed to provide continuous backup power and voltage regulation for critical equipment.

Advantages

This UPS offers on-line double-conversion topology for stable output and tight voltage regulation. The built-in LCD provides clear status and configuration information. An Emergency Power Off (EPO) feature enables rapid shutdown when required. USB connectivity allows monitoring and basic communication with connected systems. The unit supports a 3000W load with a 1.0 power factor, maximizing usable output for resistive and active loads.

Key specifications

• Rated capacity: 3 kVA / 3000 W
• Topology: On-line (double-conversion)
• Power factor: 1.0
• Display: LCD status panel
• Interfaces: USB, EPO
• Application: Backup power and voltage regulation for critical devices

How to use

Install the UPS on a stable surface in a ventilated area and connect input power according to the user manual. Connect loads to the UPS output outlets, ensuring the combined load does not exceed 3000 W. Use the LCD to monitor status and configure parameters. Connect the USB interface to a PC or monitoring device for basic communication and logging. Use the EPO input only when an immediate shutdown is required, following safety procedures in the manual.

Recommendations

Verify battery configuration and runtime with actual load before deployment. Schedule regular maintenance and firmware updates as specified by the manufacturer. Ensure cooling and ventilation around the unit and protect the UPS with appropriate upstream circuit protection.