The Dahua PFM3350-600 is a 600VA/360W line-interactive uninterruptible power supply (UPS) designed to provide stable backup power for security systems, networking equipment, computers, DVRs/NVRs, and other sensitive electronic devices. It uses a wide 170–280VAC input range and digital voltage stabilization to adapt to fluctuations in the electrical grid. The UPS provides 230VAC output, with a typical 4–8 ms transfer time when switching to battery operation. In normal AC operation it delivers a pure sine wave, while battery operation uses a simulated sine wave. The built-in 7Ah lead-acid battery provides backup power, while the charging system can reach 90% capacity in approximately 4–6 hours. Designed for quiet operation, the PFM3350-600 uses no built-in fan and includes protection against overload, battery overcharge, and over-discharge. Two European-standard output sockets and a 1.2 m input cable make it suitable for compact professional and home-office installations.

Specification    Details
Brand    Dahua
Model    PFM3350-600
Product Type    Line-Interactive UPS
UPS Capacity    600 VA
Rated Power    360 W
Input Voltage    170–280 VAC
Rated Input Frequency    50/60 Hz
Input Current    2.9 A
Power Factor    ≥0.6
Default Output Voltage    230 VAC
Output Current    2.7 A
Output Frequency    50/60 Hz
Transfer Time    Typical 4–8 ms
AC Output Wave    Pure sine wave
Battery Output Wave    Simulated sine wave
Battery Type    Lead-acid
Battery Capacity    1 × 7Ah
Charging Current    1 A
Charging Time    4–6 hours to 90%
Output Sockets    2 × European Standard
Input Plug    European Standard
Input Cable Length    1.2 m
Protection    Overload, overcharge, over-discharge
Built-in Fan    No
Casing Material    Plastic
Color    Black
Operating Temperature    0°C to +40°C
Operating Humidity    0–90% RH, non-condensing
Storage Temperature    -15°C to +55°C
Dimensions    298.4 × 101.5 × 142.2 mm
Net Weight    4.4 kg
Gross Weight    4.6 kg


600VA / 360W line-interactive UPS
European Standard 230V output
Wide 170–280VAC input range
Digital voltage stabilization
4–8 ms typical transfer time
Built-in 7Ah lead-acid battery
Fast charging to 90% in 4–6 hours
2 × European-standard output sockets
Pure sine wave in AC mode
Simulated sine wave in battery mode
Overload protection
Battery overcharge protection
Battery over-discharge protection
Visual status indicators
Audible alarm notifications
Fanless design for quiet operation
1.2 m input cable