Dahua 1500VA UPS 4 Ports 900W (DH-PFM350-900-A)

The Dahua DH-PFM350-900-A 1500VA 4 Ports 900W UPS is a high-performance line-interactive uninterruptible power supply designed to deliver stable and reliable backup power for critical systems such as CCTV surveillance, NVRs, desktop computers, and networking equipment. With its 1500VA / 900W capacity, it provides strong power support for multi-device setups, ensuring continuous operation during outages and protection against voltage instability. Built with advanced voltage regulation and fast transfer technology, it is ideal for environments that require consistent uptime and equipment protection.

Product Features

Boost and Buck Automatic Voltage Regulation (AVR)

The integrated AVR system stabilizes output voltage during fluctuations by boosting low voltage and bucking high voltage, ensuring safe and consistent power delivery without unnecessary battery usage.

High Power Capacity Backup

With a 1500VA / 900W rating, this UPS is designed to support higher load equipment and multiple devices simultaneously, making it suitable for surveillance and office systems.

Fast Transfer Time

Delivers a quick switch between mains and battery mode within approximately 2–10 milliseconds, minimizing interruptions and ensuring continuous operation of connected devices.

Cold Start Functionality

Allows the UPS to power on using battery power alone when no mains electricity is available, ensuring emergency usability at all times.

Multiple Device Connectivity

Equipped with 4 universal output sockets, enabling connection of several devices such as DVRs, NVRs, routers, and PCs at the same time.

Comprehensive Protection System

Provides protection against overload, overcharge, deep discharge, and power surges, helping to extend both UPS and connected device lifespan.

Intelligent Monitoring System

Features LED indicators and audible alarms that provide real-time updates on power status, battery mode, overload conditions, and system faults.

Stable Sine Wave Output

Delivers simulated sine wave output in battery mode, ensuring compatibility with a wide range of electronic and surveillance equipment.

Product Specifications

• Model: DH-PFM350-900-A
• Capacity: 1500VA / 900W
• Type: Line-interactive UPS
• Input Voltage Range: 140–290VAC (220V systems) / 81–145VAC (110V systems)
• Output Waveform: Simulated (stepped) sine wave in battery mode
• Voltage Regulation: Boost and Buck AVR (±10% output stability)
• Transfer Time: 2–6 ms typical, less than 10 ms maximum
• Frequency: 50/60Hz ±1Hz (battery mode)
• Power Factor: 0.6
• Battery Type: Sealed lead-acid
• Battery Configuration: 12V 9Ah × 2
• Charging Voltage: 27.4V ±1%
• Recharge Time: 4–6 hours to 90% capacity
• Surge Protection: Approximately 680 Joules
• Output Sockets: 4 universal AC ports
• Noise Level: Less than 40 dB
• Dimensions: 320 × 130 × 182 mm
• Net Weight: 10.4 kg
• Casing Material: Steel and plastic hybrid
• Operating Altitude: Up to 1,000 meters
• Indicators: LED status lights for mains, battery, and charging
• Alarms: Audible alerts for low battery, overload, and fault conditions