PDUs (Power Distribution Units) come in a range of types, each created to meet 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
Basic PDUs provide straightforward electrical distribution. These units do not include monitoring or switching capabilities. They are commonly used in compact server rooms where equipment demand is stable and does not require real-time oversight. Basic PDUs are economical and deliver consistent power delivery across connected devices.
Metered PDUs
Metered PDUs allow facilities teams to view electrical load information at the unit. A display panel indicates how much power is being drawn by connected equipment. Tracking this information helps minimise 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 in person. 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 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 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 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 cabinets. more info Vertical units provide multiple outlets without occupying rack unit space. Horizontal models 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 review equipment demand, load requirements, and maintenance processes before installing PDUs. Careful selection helps maintain uptime and ensures infrastructure reliability.