Power Distribution Units (PDUs) are available in several types, each designed to support different power distribution requirements within IT infrastructures. Selecting the appropriate type of PDU is determined by system size, equipment demand, and the level of power control required by the facility.
Basic PDUs
Standard PDUs offer simple electrical distribution. These units do not include monitoring or switching capabilities. They are typically used in compact server rooms where equipment demand is stable and does not require real-time oversight. Basic PDUs are cost effective and support consistent power delivery across connected devices.
Metered PDUs
Load-Metered PDUs enable facilities teams to view electrical load information directly from the unit. A display panel shows how much power is being drawn by connected equipment. Tracking this information helps minimise the risk of exceeding circuit limits. Metered PDUs are frequently used in environments where power usage must be tracked across multiple racks.
Monitored PDUs
Networked PDUs provide remote access to load information through a network connection. IT teams can check power usage without visiting the cabinet in person. This assists with maintenance planning and system audits. Remote monitoring also enables facilities teams to identify unused capacity within power circuits.
Switched PDUs
Switched PDUs feature remote outlet control. Each socket can be turned on or off through a management interface. This enables technicians to restart servers or network devices if a system becomes unresponsive. Switched PDUs are often used in unmanned facilities or in distributed network environments.
Intelligent PDUs
Smart PDUs integrate monitoring and switching features. These units provide real time data on voltage, current, and power usage. Some models support environmental monitoring sensors that measure temperature and humidity levels. Intelligent PDUs are widely used in larger data centres where system performance depends on precise power management.
Automatic Transfer Switch PDUs
ATS PDUs support redundancy by connecting equipment to two power sources. If one source fails, the unit automatically switches to the backup supply. This function helps maintain business continuity during power interruptions.
Rack Mounted PDUs
Rack mounted PDUs are designed for installation within server cabinets. Zero-U units provide multiple outlets without occupying rack click here unit space. Horizontal units fit within standard rack slots and are used where vertical mounting is not suitable.
Selecting the Right PDU
Choosing the correct PDU type supports safe electrical distribution and equipment performance. Facilities teams should review equipment demand, load requirements, and maintenance processes before installing PDUs. Careful selection helps maintain uptime and ensures infrastructure reliability.