Power Distribution Units (PDUs) are available in several types, each designed to support varying power distribution requirements within IT infrastructures. Selecting the appropriate type of PDU is determined by the size of the system, power demand, and the degree of power control needed within the facility.
Basic PDUs
Standard PDUs offer simple electrical distribution. These units do not feature monitoring or switching capabilities. They are typically used in smaller server rooms where equipment demand is predictable 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 monitor electrical load information at the unit. A display panel indicates how much power is being drawn by connected equipment. Tracking this information helps reduce the risk of exceeding circuit limits. Metered PDUs are often used in environments where power usage must be tracked across multiple racks.
Monitored PDUs
Networked PDUs offer remote access to load information through a network connection. IT teams can review power usage without visiting the cabinet physically. This supports maintenance planning and system audits. Remote monitoring also allows facilities teams to identify unused capacity within power circuits.
Switched PDUs
Remotely 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 commonly used in unmanned facilities or in distributed network environments.
Intelligent PDUs
Intelligent PDUs combine monitoring and switching features. These units deliver real-time data on voltage, current, and power usage. Some models support environmental monitoring sensors that measure temperature and humidity levels. Intelligent PDUs are commonly used in larger data centres where system performance depends on precise power management.
Automatic Transfer Switch PDUs
ATS PDUs provide redundancy by connecting equipment to two power sources. If one source fails, the unit automatically switches to the backup supply. This function supports business continuity during power interruptions.
Rack Mounted PDUs
Cabinet-mounted PDUs are built for installation within server check here cabinets. Zero-U units provide multiple outlets without occupying rack unit space. Horizontal units fit within standard rack slots and are used where vertical mounting is not suitable.
Selecting the Right PDU
Choosing the appropriate PDU type supports safe electrical distribution and equipment performance. Facilities teams should assess equipment demand, load requirements, and maintenance processes before installing PDUs. Suitable selection helps protect uptime and supports infrastructure reliability.