Uninterruptible Power Supply DAHUA PFM3350-1000 1000VA UPS

DAHUA PFM3350-1000 1000VA UPS is an uninterruptible power supply engineered to provide short-term backup power and surge protection for security systems, network equipment and small servers. The unit maintains power during mains interruptions and smooths voltage fluctuations to reduce the risk of data loss and equipment damage. Designed for rack or desktop placement in small installations, this UPS supports controlled shutdowns and continued operation of critical loads until mains power is restored or a planned shutdown can be performed.

Advantages

The UPS delivers 1000VA of capacity to support cameras, network switches, DVR/NVR devices and other low-to-moderate power loads. Built-in voltage regulation and battery-backed output reduce interruptions caused by brief outages and brownouts. The compact form factor allows deployment in confined spaces and near devices it protects. The device provides predictable run time for safe shutdown procedures and helps prolong the life of connected electronics by preventing abrupt power loss.

Suitable for

• Security camera systems and recorders (DVR/NVR)
• Network switches, routers and access points
• Small servers, NAS devices and storage systems
• Point-of-sale terminals and workstations requiring controlled shutdown

Key specifications

• Rated capacity: 1000VA
• Form factor: compact unit for desktop or rack-adjacent placement
• Output type: battery-backed AC output with voltage regulation
• Typical application: backup for security and network equipment
• Protection features: short-term backup during mains failure and mitigation of voltage fluctuations

How to use

Install the UPS on a stable, level surface near the devices to be protected or in a suitable rack position. Connect the UPS to the mains supply and allow the internal battery to charge before relying on backup power. Plug critical equipment into the battery-backed outlets and noncritical devices, if any, into surge-only outlets when available. During an outage, the UPS will supply power automatically; monitor the load and perform a controlled shutdown of sensitive equipment when the remaining runtime approaches safe limits.

Usage recommendations

For reliable operation, verify connected load does not exceed the 1000VA capacity and schedule periodic battery checks and replacements per manufacturer guidance. Keep the UPS in a ventilated environment away from heat sources and moisture. Regularly test the UPS with the actual equipment it protects to confirm acceptable runtime and orderly shutdown behavior.