The CyberPower PR500LCDRT1U Smart App Sinewave UPS (500VA / 400W) features an LCD panel, offers a sine wave output, and is active-PFC-compatible for safeguarding mission-critical servers, telecom equipment and VoIP, and inter-networking hardware that requires seamless sine wave power. It incorporates microprocessor-based digital control and includes the PowerPanel Business edition software. The UPS system is ENERGY STAR qualified with GreenPower UPS Bypass circuitry to reduce energy consumption and heat build-up.
Suitable for servers, workstations, network devices, and telecom equipment
Capacity of 500VA / 400W
Full AVR (Automatic Voltage Regulation) Buck/Boost
AVR (Automatic Voltage Regulation) provides battery back-up power if the voltage drops below 80V or exceeds 150V
Mine has a loud transformer hum and noticeable ...
Mine has a loud transformer hum and noticeable vibration even on AC and with the battery fully charged. (NOT fan noise.) With a steady load, the problem goes away after several hours, but at the slightest change in load (e.g. a HD spinning up) I can hear a relay click and the hum/vibration are back. It also under-reports line voltage by 5 - 6V. Is this normal?
Asked by: david
Hello David, Sounds like this unit may be displaying issues. Please reach out to our support team at 877-297-6937 and we'd be happy to assist. We look forward to hearing from you!
Answered by: TechSupport
Date published: 2021-02-17
does this make any noise? fan noise? I'm think about mounting this in my sound studio.
Asked by: Kevin
Bit late to the party, but in the hopes this may help someone: Yes, it makes noise. There is a constant hum, not just when on battery power, and noticeable vibration, kind of like touching a speaker. I would not recommend this for a quiet location.