PDUs (Power Distribution Units) are available in a range of types, each created to support varying power distribution needs within IT infrastructures. Choosing the appropriate type of PDU depends on the size of the system, equipment demand, and the degree of power control required by the facility.
Basic PDUs
Standard PDUs provide simple electrical distribution. These units do not feature monitoring or switching capabilities. They are commonly used in compact server rooms where equipment demand is predictable and does not require real time oversight. Basic PDUs are economical and deliver reliable power delivery across connected devices.
Metered PDUs
Metered PDUs allow 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
Monitored PDUs provide remote access to load information through a network connection. IT teams can check power usage without visiting the cabinet in person. This supports maintenance planning and system audits. Remote monitoring also enables facilities teams to detect 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 allows 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 combine monitoring and switching features. These units provide real-time data on voltage, current, and power usage. Some models include environmental monitoring sensors that measure temperature and humidity levels. Intelligent PDUs are commonly used in enterprise-scale 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 feature supports business continuity during power interruptions.
Rack Mounted PDUs
Rack mounted PDUs are built for installation within server more info cabinets. Vertical units offer 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
Selecting the correct PDU type helps ensure safe electrical distribution and equipment performance. Facilities teams should assess equipment demand, load requirements, and maintenance processes before installing PDUs. Careful selection helps protect uptime and ensures infrastructure reliability.