PPS-125-27 datasheet by Mean Well

PPS-125-27 Frequently Asked Questions (FAQs)

• What is the maximum ambient temperature for the PPS-125-27?
  The maximum ambient temperature for the PPS-125-27 is 40°C (104°F) for full load operation, and up to 60°C (140°F) for derated load operation.
• Can I use the PPS-125-27 in a high-humidity environment?
  Yes, the PPS-125-27 is designed to operate in humid environments, with a relative humidity of up to 95% non-condensing.
• What is the hold-up time for the PPS-125-27?
  The hold-up time for the PPS-125-27 is approximately 16ms at 100Vac input and full load.
• Can I use the PPS-125-27 in a redundant configuration?
  Yes, the PPS-125-27 can be used in a redundant configuration, but it requires an external ORing diode or a redundancy module to ensure proper operation.
• What is the MTBF (Mean Time Between Failures) for the PPS-125-27?
  The MTBF for the PPS-125-27 is approximately 550,000 hours at 25°C (77°F) ambient temperature, calculated according to MIL-HDBK-217F.