Dahua PFM3350-600: compact backup power during a power failure
The Dahua PFM3350-600 is a compact line-interactive UPS of 600 VA / 360 W. In the event of a power failure or brief interruption, it switches to the built-in battery within a few milliseconds, so your cameras, NVR or network keep running.
With a wide input voltage of 170 to 280 VAC, the UPS also works reliably on a weak or fluctuating mains supply, and corrects the voltage automatically. Two earthed sockets power your equipment; the plug-and-play design makes installation straightforward.
Why this UPS
Wide input voltage
Operates stably from 170 to 280 VAC and adapts to fluctuations in the mains supply.
Fast switchover
Switches over to the battery within 4 to 8 milliseconds, so connected equipment does not shut down.
Built-in battery
A 7Ah lead-acid battery bridges the power failure and recharges to 90% in 4 to 6 hours.
Two outputs
Two earthed sockets (EU), for example for an NVR and the camera power supply.
Protected
Protection against overload, short circuit, overcharging and deep discharge of the battery.
Compact and quiet
Compact in size, quiet in operation and keeps the output voltage digitally stable.
Technical specifications
| Power | |
| Capacity | 600 VA / 360 W |
| Topology | Line-interactive |
| Input | |
| Input voltage | 170-280 VAC |
| Input current | 2.9 A |
| Frequency | 50/60 Hz |
| Output | |
| Output voltage | 230 VAC (standard) |
| Output current | 2.7 A |
| Transfer time | 4-8 ms |
| Waveform | Mains power: pure sine wave; battery: simulated sine wave |
| Battery | |
| Type | Built-in, lead-acid battery, 1x 7 Ah |
| Charging time | 4-6 hours to 90% |
| Connections | |
| Outputs | 2x socket, earthed (EU) |
| Input plug | EU, cable 1.2 m |
| Protection | |
| Security | Overload, short circuit, overcharging, deep discharge |
| Housing | |
| Dimensions | 298,4 x 101,5 x 142,2 mm |
| Weight | 4.4 kg |
| Material / colour | Plastic, black |
| Environment | |
| Operating temperature | 0 to 40 °C, 0-90% non-condensing |
| Certification | |
| Standards | CE (EN IEC 62040-1, EN 62040-2, EN 61000-3) |
Frequently asked questions
What do I use this UPS for?
To keep a smaller camera system, an NVR or network equipment online during a power failure or short interruption. The UPS bridges the outage with the battery and protects against voltage spikes.
How long does the battery bridge a power failure?
That depends on how much power you connect (maximum 360 W). The lighter the load, the longer the backup time. For an estimate for your setup, you can contact [email protected].
Is the battery replaceable?
Yes, the UPS has a built-in lead-acid battery (1x 7 Ah) that can be replaced. The UPS signals when the battery needs replacing.
Which plugs does it have?
One EU earthed input plug with a 1.2 metre cable and two EU earthed outputs.
Reviews
There are no reviews yet.