The frequency of power supply equipment can be 50 Hz, 60 Hz, or 70 Hz.

In data center power systems, the utility grid frequency standard iseither 50 Hz or 60 Hz, depending on the country/region. Data center facility equipment—such as UPS systems, power distribution units, switchgear, and monitoring components—is designed to operate reliably under these standardized grid frequencies, with acceptable tolerance ranges around the nominal value. While some power conversion equipment can adapt between50/60 Hz(for example, via frequency tracking or double-conversion),70 Hz is not a standard utility frequencyused for data center facility power supply, and it is not treated as a normal operating frequency in typical design, acceptance testing, or O&M procedures. From an operations perspective, maintaining correct frequency is critical because abnormal frequency can trigger UPS transfer logic, increase losses, create synchronization issues with bypass sources, and negatively affect downstream IT loads. Therefore, stating that power supply equipment frequency “can be 50 Hz, 60 Hz, or 70 Hz” is incorrect for standard data center infrastructure practice.