Do you need a UPS for a DVR

A UPS – Uninterruptible Power Supply – is a highly recommended addition to your CCTV system as a sudden pulse in the power can destroy your DVR’s hard drive.

Eaton 3S UPS

As well as keeping the system powered up during power fails, they clean the incoming power for spikes and surges, which destroy electronics.

They only add an extra $120 to the system cost but will save you over $500 for a repair to your DVR.

A good entry level unit for a DVR and cameras is the Eaton Pworeware 3S 700VA. This has several power outlets and the 700VA means it can power 700 watts of equipment.



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  1. Daniel May 15, 2014 at 5:45 pm #

    I think using a UPS is almost a must for a professional installation.

    • Rach May 17, 2014 at 8:25 pm #

      We had a camera system where the installer assured us it was top notch.
      Next power fail, the system stopped and never started again until we had the hard drives replaced.
      Apparently they don’t like sudden power fails!

      We now have a bill for a service call and the UPS, which was not suggested as an option at the time of install and would have saved us a $400 repair bill.