QOLTEC Pure Sine Wave Online Double-Conversion UPS for RACK 5kVA 5000W PF1.0 with LCD, EPO, USB, RS-232, Intelligent Slot

Experience uninterrupted power with a true online double-conversion UPS delivering a full 5000W at power factor 1.0. This 3U rackmount unit provides pure sine wave output with zero transfer time, ensuring your critical servers, network equipment, and sensitive electronics stay protected from power anomalies.

Overview

The QOLTEC 53939 is a high-performance online UPS designed for rack installation. It converts incoming AC to DC and then back to AC, completely isolating connected equipment from utility power disturbances. With a rated capacity of 5000VA/5000W, it supports demanding loads while maintaining output voltage regulation within ±1%. The wide input voltage range (110-300V AC) reduces battery usage during fluctuations, and the automatic frequency sensing (50/60Hz) makes it suitable for various environments.

What stands out

• Online double-conversion topology with pure sine wave output and 0ms transfer time
• Power factor 1.0 delivers maximum real power (5000W) for high-efficiency loads
• Rackmount 3U form factor with hot-swappable batteries and external battery pack support
• Comprehensive communication: USB, RS-232, and intelligent slot for SNMP/relay card
• LCD panel for real-time status, plus EPO (Emergency Power Off) function for safety
• High efficiency up to 93% reduces energy costs and heat generation

Technical details

• Topology: Online Double Conversion
• Rated power: 5000 VA / 5000 W
• Power factor: 1.0
• Output waveform: Pure sine wave
• Form factor: Rackmount (3U)
• Input voltage nominal: 230V AC; range: 110-300V AC
• Output voltage nominal: 230V AC (configurable); regulation: ±1%
• Frequency: 50/60 Hz auto-sensing
• Transfer time: 0 ms
• Battery type: Sealed Lead Acid (SLA), maintenance-free
• Communication: USB, RS-232, Intelligent Slot
• Display: LCD panel
• Efficiency (AC-AC): up to 93%
• Bypass: Automatic and Manual
• Protection: Overload, short circuit, over-temperature
• Hot-swappable batteries: Yes
• External battery pack support: Yes

Our verdict

For mission-critical applications where downtime is not an option, this QOLTEC UPS delivers robust power protection with advanced features and flexible management. Its online design and high power factor make it a reliable choice for data centers and server rooms.