PDUs (Power Distribution Units) come in a range of types, each created to support different power distribution needs within IT environments. Choosing 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 feature monitoring or switching functions. They are commonly used in smaller server rooms where equipment demand is predictable and does not require real-time oversight. Basic PDUs are economical and deliver consistent power delivery across connected devices.
Metered PDUs
Metered PDUs enable facilities teams to monitor electrical load information directly from the unit. A display panel shows how much power is being drawn by connected equipment. Monitoring 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 offer 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
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 support environmental monitoring sensors that measure temperature and humidity levels. Intelligent PDUs are commonly used in enterprise-scale data centres where system performance depends on accurate power management.
Automatic Transfer Switch PDUs
Automatic Transfer Switch (ATS) PDUs provide 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
Cabinet-mounted PDUs are built for installation within server cabinets. Vertical units offer multiple outlets without occupying rack unit space. read more Horizontal models fit within standard rack slots and are used where vertical mounting is not suitable.
Selecting the Right PDU
Selecting 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 maintain uptime and supports infrastructure reliability.