How to Choose the Right Rack PDU

When designing a server rack or expanding a data centre, most attention is typically given to servers, switches, storage and cooling. Yet one component is still often overlooked: the Rack Power Distribution Unit (Rack PDU).

This is surprising, because the PDU forms the foundation of the power distribution within a rack. Choosing the right one has a direct impact on the availability of IT systems, energy management, monitoring capabilities and the flexibility to scale your infrastructure in the future.

Where a PDU was once regarded as little more than a simple power strip, that is no longer the case. Modern data centres demand far greater visibility into energy consumption, remote management, cyber security, integration with DCIM software, and support for AI and high-density computing environments. As a result, the Rack PDU has become an essential part of the overall data centre infrastructure.

Choosing the right Rack PDU, however, is not always straightforward. There are various types of PDUs, different power capacities, connector options, mounting methods and communication protocols to consider. What’s more, the decisions you make today are likely to remain in place for many years.

This guide takes you through the selection process step by step. You’ll learn:

• what a Rack PDU is and why it matters;
• the different types of Rack PDUs available;
• which technical specifications are genuinely important;
• why monitoring and energy management are becoming increasingly essential;
• the common mistakes to avoid; and
• how to choose a solution that will continue to meet your requirements well into the future.

Whether you’re a Data Centre Manager, MEP Engineer, Solutions Architect, Facilities Manager, or responsible for the technical infrastructure of a server room, this guide will help you make a well-informed decision.

What Is a Rack PDU?

A Rack Power Distribution Unit (Rack PDU) is a power distribution system that safely and reliably delivers electrical power to the equipment installed in a server rack. This includes servers, storage systems, networking equipment, UPS systems and other IT hardware that must remain continuously available.

Although a Rack PDU may appear similar to an advanced power strip at first glance, this comparison is misleading. A professional Rack PDU is specifically designed for mission-critical environments where reliability, safety, energy efficiency and uptime are paramount.

In modern data centres, a Rack PDU does far more than simply distribute power. Depending on the model, it can:

• measure energy consumption per phase, circuit or outlet;
• be monitored and managed remotely;
• switch individual outlets on or off;
• generate alerts when abnormal conditions occur;
• monitor environmental sensors such as temperature and humidity; and
• communicate with DCIM, BMS and monitoring platforms using protocols such as SNMP, Modbus TCP or a REST API.

As a result, the Rack PDU has evolved from a passive power distribution device into an active component of the overall data centre infrastructure.

Why Is a Rack PDU Important?

Choosing the right Rack PDU affects far more than simply supplying power.

The wrong choice can create limitations later when racks need to be expanded, higher power densities are required, or monitoring and management become more important. With AI workloads, GPU servers and high-density racks demanding ever greater levels of power, flexibility has become a key design consideration.

A well-chosen Rack PDU helps organisations to:

• make the most of the available power capacity;
• prevent overloaded power feeds;
• gain clear insight into energy consumption;
• detect faults more quickly;
• simplify maintenance; and
• support future expansion without replacing the entire power distribution infrastructure.

As a result, the PDU is no longer just the endpoint of the power distribution chain. It has become a valuable source of operational data for managing the entire IT infrastructure.

Where Are Rack PDUs Used?

Rack PDUs are used in almost every environment where multiple IT systems are housed within a rack, ranging from small server rooms to hyperscale data centres.

Common applications include:

• Enterprise data centres
• Colocation data centres
• Cloud and hyperscale environments
• Edge data centres
• Industrial automation
• Telecommunications facilities
• Network rooms
• Broadcast and media environments
• Healthcare organisations
• Government organisations
• Financial institutions

Although these environments differ significantly, their core requirements remain the same: reliable power distribution, maximum availability and sufficient flexibility to accommodate future growth and changing demands.

A Rack PDU Is Not a Commodity Product

One of the most common misconceptions is that all Rack PDUs are fundamentally the same and differ only in the number of outlets.

In reality, the differences are far more significant.

When selecting a Rack PDU, you’ll need to consider factors such as:

• the required power capacity;
• single-phase or three-phase power;
• the type of input and output connections;
• vertical (0U) or horizontal installation;
• energy monitoring capabilities;
• remote switching functionality;
• communication protocols;
• integration with existing management software;
• redundancy requirements; and
• future scalability.

That’s why selecting the right Rack PDU should begin with your project’s overall power distribution requirements, rather than simply comparing product specifications.

What Types of Rack PDU Are Available?

Not every Rack PDU offers the same functionality. While some models simply distribute power, others can measure energy consumption, remotely switch individual outlets, or integrate fully with a Data Centre Infrastructure Management (DCIM) platform.

Choosing the right type therefore starts with understanding not just what you need today, but what level of visibility and functionality your infrastructure may require in the future.

The most common types of Rack PDU are:

• Basic PDU – Click here to learn more about the Basic PDU.
• Metered PDU – Click here to learn more about the Metered PDU.
• Monitored PDU – Click here to learn more about the Monitored PDU.
• Switched PDU – Click here to learn more about the Switched PDU.
• Managed PDU – Click here to learn more about the Managed PDU.
• Inline Meter – Click here to learn more about the Inline Meter.

Although these categories are widely recognised across the industry, the exact functionality can vary between manufacturers. Always verify which features are actually included before making your selection.

Basic PDU

A Basic PDU is the simplest form of Rack Power Distribution Unit. Its primary purpose is to distribute electrical power safely and reliably to multiple devices within a server rack.

In most cases, a Basic PDU does not include energy metering, network connectivity or remote management capabilities. This makes it an ideal solution for environments where reliability and simplicity are more important than monitoring or advanced management features.

When should you choose a Basic PDU?

A Basic PDU is typically suitable for:

• Small server rooms
• Network cabinets
• Test environments
• Installations where energy monitoring is not required

Schleifenbauer Insight

At Schleifenbauer, a Basic PDU offers the same reliable power distribution expected from any professional Rack PDU, while benefiting from the company’s modular engineering philosophy.

Depending on the project requirements, a Basic PDU can be configured with different outlet combinations, power ratings and connection options. It also benefits from the same industrial build quality used throughout the entire Schleifenbauer product range.

This allows organisations to choose a straightforward solution without compromising on quality or future flexibility.tion.

Metered PDU

A Metered PDU builds upon the functionality of a Basic PDU by adding power metering.

By measuring the total electrical load of the PDU, administrators gain valuable insight into available capacity and rack utilisation. This information supports capacity planning, helps prevent circuit overloads and provides accurate energy reporting.

Typical applications

A Metered PDU is commonly used when organisations require:

• Capacity planning
• Energy reporting
• Load monitoring
• Improved visibility of rack power consumption

Schleifenbauer Insight

Schleifenbauer integrates power metering into the same modular hardware platform used across its intelligent PDU range.

As operational requirements evolve, organisations can benefit from a platform designed to support future expansion, allowing additional functionality to be incorporated without changing the overall engineering philosophy.

Monitored PDU

A Monitored PDU combines energy metering with continuous remote monitoring.

In addition to measuring the total load, many Monitored PDUs also provide outlet-level power metering, allowing operators to monitor the energy consumption of individual connected devices.

This level of visibility supports:

• Capacity planning
• Load balancing
• Energy optimisation
• Early detection of abnormal power consumption

Many Monitored PDUs also support environmental sensors for monitoring:

• Temperature
• Humidity
• Door contacts
• Water leak detection

The collected data can be integrated into DCIM, BMS and infrastructure management platforms using standard communication protocols.

Schleifenbauer Insight

Schleifenbauer develops both its hardware and firmware entirely in-house.

This enables seamless integration through open protocols such as SNMP, Modbus TCP and REST API, while allowing the platform to evolve continuously based on real-world customer feedback.

The result is an open, future-ready monitoring platform that integrates easily into existing data centre infrastructures.

Switched PDU

A Switched PDU extends the functionality of a Monitored PDU by allowing individual outlets to be switched remotely.

This enables connected equipment to be powered on, powered off or rebooted without requiring physical access to the rack.

Typical applications include:

• Remote server reboot
• Lights-out data centres
• Troubleshooting
• Controlled power sequencing
• Automated recovery procedures

As individual outlets can be controlled independently, appropriate access rights and operational procedures are essential.

Schleifenbauer Insight

Within the Schleifenbauer platform, outlet switching is fully integrated with monitoring, energy metering and alarm management.

This enables administrators to manage power distribution, monitor consumption and integrate operational data into existing DCIM or Building Management Systems through a single, open platform.

Managed PDU

The term Managed PDU is interpreted differently across the industry.

Generally, it describes an intelligent Rack PDU that combines advanced monitoring, outlet switching, user management, security features and integration capabilities into a single platform.

Managed PDUs are commonly deployed in enterprise data centres, colocation facilities and other mission-critical environments where maximum availability and centralised management are essential.

Schleifenbauer Insight

Rather than viewing a Managed PDU as a standalone product, Schleifenbauer considers it part of a complete power management platform.

By combining proprietary hardware, in-house developed firmware, open communication protocols and licence-free DCEM software, organisations benefit from a scalable solution that integrates easily with existing infrastructures while remaining flexible for future developments.

Inline Meter

An Inline Meter is not a complete Rack PDU, but a metering device installed between the power source and an existing PDU.

It enables energy consumption to be measured without replacing the existing power distribution infrastructure.

This is particularly beneficial when:

• the existing PDUs are still in good condition;
• additional energy metering is the only requirement; or
• an existing installation is being modernised in stages.

An Inline Meter therefore provides a cost-effective way to gain greater insight into the energy consumption of existing racks while extending the value of the current infrastructure.

Overview of the Different Types of Rack PDUs

Type	Power Distribution	Phase-Level Energy Metering	Outlet-Level Monitoring	Remote Switching	Typical Application
Basic	✔	✖	✖	✖	Small server rooms and straightforward installations
Metered	✔	✔	✖	✖	Capacity planning and energy metering
Monitored	✔	✔	✔	✖	Data centres with centralised monitoring
Switched	✔	✔	✖	✔	Remote management and controlled equipment restarts
Managed	✔	✔	✔	✔	Mission-critical and complex IT environments
Inline Meter	N/A	✔	✖	✖	Upgrading existing Basic and legacy PDU installations with energy metering

Which Type of Rack PDU Is Right for Your Environment?

There is no single “best” Rack PDU. The right choice depends entirely on the requirements of your project.

Ask yourself the following questions:

• Do you simply need to distribute power, or do you also require visibility into energy consumption?
• Is remote management essential?
• Do you need the ability to remotely reboot individual devices?
• Should the PDU integrate with your existing monitoring or DCIM software?
• Do you expect the rack to be expanded over the coming years?
• Are there requirements relating to cyber security, event logging or access control?

By answering these questions first, you can avoid investing in features you’ll never use, or choosing a solution that becomes inadequate within a few years.

Which Specifications Really Matter When Choosing a Rack PDU?

Selecting a Rack PDU should begin with defining the technical requirements of the rack, not by comparing brands or product models. A PDU that meets your needs today should also support the growth of your IT infrastructure five or even ten years from now.

That’s why it’s important to look beyond the number of outlets or the initial purchase price. Power capacity, power configuration, connector types, monitoring capabilities and future scalability often have a much greater impact on the overall lifespan of the installation.

In this section, we’ll explore the key technical considerations that influence the reliability, scalability and manageability of a server rack.

Single-Phase or Three-Phase?

One of the first decisions is the power configuration.

Rack PDUs are available for both single-phase and three-phase electrical installations.

A single-phase PDU is commonly used in smaller server rooms and racks with relatively modest power requirements. For many standard IT environments, this is an ideal solution.

In modern data centres, however, three-phase PDUs are increasingly becoming the preferred choice. By distributing the electrical load across three phases, they can support much higher power densities while reducing the current carried by each individual phase.

When Is a Single-Phase PDU Suitable?

• Small server rooms
• Network racks
• Low-power applications
• Edge computing locations
• Test environments

When Should You Choose a Three-Phase PDU?

• Data centres
• High-density racks
• AI and GPU servers
• Colocation facilities
• Growing IT environments
• High-power applications

A three-phase installation also provides significantly greater flexibility for future expansion without requiring a complete redesign of the power infrastructure.

How Much Power Capacity Does a Rack PDU Need?

This is arguably the most important question when designing a rack.

The correct PDU is determined not by the number of outlets, but by the total electrical load of all connected equipment.

This includes devices such as:

• servers;
• storage systems;
• network switches;
• firewalls;
• UPS systems; and
• future equipment planned for expansion.

One of the most common mistakes is designing solely for today’s requirements. In reality, most racks continue to evolve throughout their operational life. A PDU with sufficient capacity today may become a limiting factor within only a few years.

For that reason, it’s advisable to allow sufficient spare capacity for future growth and avoid having to replace the entire PDU at a later stage.

C13, C19 or Universal Cx Outlets?

When designing a server rack, the type of outlets fitted to the Rack PDU is another important consideration. Traditionally, the choice has been between IEC C13 and IEC C19 outlets.

C13 outlets are commonly used for standard IT equipment such as servers, switches and networking hardware.

C19 outlets are intended for higher-power equipment, including blade servers, UPS systems and GPU platforms.

The market is evolving, however. Increasingly, modern Rack PDUs are equipped with universal Cx outlets, such as the Scolmore IEC Lock system. These combine the functionality of multiple IEC outlet types into a single universal connection.

A universal Cx outlet supports, among others:

• C14 plugs
• C16 plugs
• C20 plugs
• C22 plugs

This provides considerably greater flexibility when configuring a rack. Equipment with different connector types can be connected without having to decide in advance on a fixed ratio of C13 and C19 outlets.

For organisations, this means a Rack PDU can more easily adapt as hardware changes and infrastructure expands over time.

Practical advice: If the configuration of your rack is likely to change during its operational life, universal Cx outlets can help maximise outlet utilisation while reducing the need to specify multiple outlet types from the outset.

Why This Matters

Choosing a Rack PDU is about far more than simply counting outlets. Long-term flexibility is equally important. Universal Cx outlets reduce the risk of having to replace a Rack PDU simply because new equipment uses different plug types from those originally anticipated, helping to future-proof your power distribution infrastructure.

Vertical (0U) or Horizontal (1U, 1.5U or 2U) Mounting?

Rack PDUs are available in a range of mounting configurations.

A vertical 0U PDU is installed along the side of the rack and occupies no usable rack space. For this reason, it has become the preferred choice in modern data centres.

Horizontal PDUs are mounted within a standard rack unit and are primarily used in smaller installations or network cabinets where vertical mounting is not possible.

For most modern server racks, a vertical 0U solution offers the greatest flexibility and makes the most efficient use of available rack space.

Choosing the Right Inlet

In addition to the outlet configuration, selecting the correct power inlet is equally important.

Common inlet options include:

• IEC 60309
• Wieland
• Hardwired
• NEMA (depending on regional standards)

The most suitable connection depends on:

• the required power capacity;
• local electrical standards;
• the existing electrical installation; and
• the desired level of redundancy.

Selecting the wrong inlet can result in unnecessary modifications to the electrical infrastructure.

Redundancy (A and B Feeds)

For mission-critical IT environments, power redundancy is often essential.

Many racks therefore incorporate two completely independent power feeds:

• Feed A
• Feed B

Servers equipped with dual power supplies are connected across both feeds. If one power path fails, the equipment continues operating via the second power supply, helping to maximise uptime.

When selecting a Rack PDU, it’s therefore important to consider not only the capacity of an individual PDU, but the overall power architecture of the rack.

Future Scalability

A Rack PDU is typically expected to remain in service for many years.

That’s why it’s sensible to plan today for future developments such as:

• higher rack power densities;
• AI workloads;
• GPU servers;
• additional environmental sensors;
• more advanced monitoring capabilities; and
• integration with DCIM platforms.

A solution that perfectly meets today’s requirements may become a constraint as your infrastructure evolves.

Designing with future expansion in mind helps avoid unnecessary replacements and makes upgrades significantly easier.

Technical Specification Checklist

Before selecting a Rack PDU, it’s good practice to review the following considerations:

Category	Question
Power Capacity	Is sufficient capacity available, including allowance for future growth?
Power Phases	Is a single-phase or three-phase solution required?
Outlets	What combination of C13, C19 or universal Cx outlets is needed?
Mounting	Is vertical (0U) or horizontal mounting preferred?
Inlet	Is the power inlet compatible with the existing electrical installation?
Redundancy	Is an A/B feed configuration required?
Monitoring	Is visibility into energy consumption required?
Remote Management	Should individual outlets be remotely switched?
Integration	Does the PDU need to integrate with DCIM or Building Management Systems (BMS)?
Scalability	Can the solution support future expansion and increasing power demands?

From Project Requirements to the Right Rack PDU

A Rack PDU should never be selected purely on the basis of a product specification or catalogue number. The right choice starts with understanding the requirements of your project.

In practice, every data centre project begins with a number of fundamental questions. How much power is required? What equipment will be installed? Is remote monitoring needed? What level of future growth is expected? And how can you avoid selecting a solution that no longer meets your needs in a few years’ time?

By answering these questions at the outset, you can avoid costly modifications later and create a power distribution solution that supports the entire lifecycle of the rack.

Step 1 – Inventory the Equipment

The first step is surprisingly straightforward: create a complete inventory of all the equipment that will be installed in the rack.

Don’t just consider today’s requirements. Plan for future expansion as well.

Your inventory should include equipment such as:

• Servers
• Storage systems
• Network switches
• Firewalls
• Load balancers
• KVM switches
• UPS systems
• Appliance servers
• GPU servers
• Other peripheral equipment

The number of devices is important, but even more critical are their maximum power consumption and power connector requirements.

Step 2 – Calculate the Required Power Capacity

Many organisations focus solely on their current power consumption.

While understandable, this is one of the most common design mistakes.

Most racks continue to evolve throughout their operational life.

Allow sufficient spare capacity for:

• additional servers;
• new networking equipment;
• higher rack power densities;
• AI and GPU workloads; and
• future expansion.

A PDU operating at 95% of its capacity today leaves very little room for growth tomorrow.

Step 3 – Define the Required Level of Monitoring

Not every organisation requires the same level of operational visibility.

Establish in advance which information is genuinely valuable for your environment.

For example:

• Power distribution only
• Energy consumption monitoring
• Phase-level load monitoring
• Outlet-level energy monitoring
• Temperature monitoring
• Humidity monitoring
• Alarm notifications
• Historical reporting

Clearly defining these requirements upfront helps prevent both over-specification and missing critical functionality.

Step 4 – Consider Operational Management

Increasingly, organisations manage their infrastructure remotely.

It’s therefore worth considering questions such as:

• Should equipment be capable of remote reboot?
• Who should have access to the PDU?
• Which authentication methods are required?
• What level of event logging is needed?
• Should the PDU integrate with existing monitoring software?

Particularly in colocation and enterprise environments, remote management can save valuable time during maintenance and fault resolution.

Step 5 – Verify Integration with Existing Systems

A Rack PDU rarely operates in isolation.

In most environments, it forms part of a wider infrastructure in which multiple systems exchange information.

Check whether the PDU can integrate with:

• DCIM platforms;
• Building Management Systems (BMS);
• monitoring software;
• asset management systems;
• energy management platforms; and
• custom dashboards.

Support for open communication protocols and a well-documented API generally makes integration simpler while reducing dependency on a single vendor.

Step 6 – Plan for Future Change

The service life of a Rack PDU is often considerably longer than that of the servers connected to it.

During that time, infrastructure requirements are likely to change.

Consider developments such as:

• higher power densities;
• new generations of servers;
• AI workloads;
• stricter sustainability targets;
• additional monitoring requirements; and
• evolving cyber security policies.

A future-ready design helps prevent the need to replace an entire PDU simply because the IT equipment has changed.

Step 7 – Look Beyond the Purchase Price

When selecting a Rack PDU, it’s easy to focus primarily on the purchase cost.

However, the total cost of ownership (TCO) over the product’s lifetime is often far more significant.

Consider costs such as:

• installation;
• configuration;
• software licensing;
• firmware updates;
• maintenance;
• future expansion;
• replacement; and
• technical support.

A solution that appears less expensive initially may prove considerably more costly over its operational life.

Frequently Asked Questions During a PDU Project

The same questions arise time and again during the design and implementation of data centre projects:

• Is a custom-built solution necessary, or will a standard configuration suffice?
• How much spare capacity should be allowed?
• How can overload conditions be prevented?
• Which monitoring features genuinely add value?
• Which communication protocols are most future-proof?
• How can vendor lock-in be avoided?
• Can the same PDU be expanded later?
• How can the PDU be integrated with existing management software?

Answering these questions during the design phase helps avoid unexpected issues during implementation.

Practical Checklist for Project Teams

Use the following checklist before making your final selection.

Checkpoint	Completed
Equipment inventory completed	☐
Maximum power requirement calculated	☐
Spare capacity included	☐
Required number of C13, C19 or universal Cx outlets determined	☐
Single-phase or three-phase configuration selected	☐
A/B feed redundancy designed	☐
Monitoring requirements defined	☐
DCIM/BMS integration verified	☐
Security and access policies established	☐
Future expansion requirements considered	☐

The best Rack PDU is not necessarily the one with the greatest number of features, but the one that best matches both the technical and operational requirements of your project.

By defining your project requirements first and selecting the appropriate solution afterwards, you create an infrastructure that not only meets today’s needs but is also prepared for future developments.

Monitoring and Energy Management: From Power Distribution to Data Centre Intelligence

Ten years ago, a Rack PDU was largely regarded as a passive component within a server rack. As long as it supplied power to the connected equipment, its job was considered complete.

That perception has changed completely.

In modern data centres, the Rack PDU has become an important source of operational intelligence. In addition to distributing power, it collects valuable data that helps organisations optimise capacity, identify faults more quickly and gain detailed insight into energy consumption.

For organisations aiming to maximise availability and improve energy efficiency, monitoring is no longer a luxury—it is an essential part of the infrastructure.

To determine the ideal PDU configuration, a practical checklist is available. Click here to access the checklist.

Why Is Monitoring Becoming Increasingly Important?

Data centres are processing ever-growing volumes of data while supporting increasingly powerful hardware. AI workloads, GPU clusters and high-performance computing have driven a significant increase in rack power densities over recent years.

As a result, it has become increasingly important to understand:

• how much power a rack is actually consuming;
• whether one phase is carrying a heavier load than the others;
• how much spare capacity remains available; and
• where unusual conditions or peak loads are occurring.

Without this information, it becomes far more difficult to plan expansions safely or identify potential issues before they lead to downtime.

What Data Can a Modern Rack PDU Collect?

Depending on the type of PDU, a wide range of electrical and environmental data can be measured and monitored.

Common electrical measurements include:

• current (A);
• voltage (V);
• power (kW);
• energy consumption (kWh);
• power factor;
• phase load;
• outlet-level load; and
• frequency.

When environmental sensors are connected, a Rack PDU can also collect data on:

• temperature;
• humidity;
• water leak detection;
• door status; and
• vibration.

Together, these measurements provide a comprehensive picture of the conditions both inside and around the rack.

From Reactive to Proactive Management

One of the greatest advantages of monitoring is the ability to identify potential issues before they result in downtime.

Examples include:

• a phase that is becoming progressively more heavily loaded;
• rising temperatures within a rack;
• cooling system failures;
• unusual patterns of energy consumption; and
• equipment drawing unexpectedly high levels of power.

By automatically generating alerts, administrators can respond earlier and help prevent unplanned outages.

Monitoring therefore shifts infrastructure management from a reactive approach to a proactive one.

Integration with DCIM and Monitoring Platforms

In most data centres, a Rack PDU does not operate as a standalone device.

The data it collects is typically integrated into existing management platforms, providing a centralised view of the entire infrastructure.

Depending on the environment, a Rack PDU can exchange data with:

• Data Centre Infrastructure Management (DCIM) platforms;
• Building Management Systems (BMS);
• Network Management Systems (NMS);
• monitoring software;
• operational dashboards; and
• energy management systems.

This creates a single environment from which both IT infrastructure and building services can be monitored and managed.

Communication Protocols

To exchange information with other systems, intelligent Rack PDUs support a range of industry-standard communication protocols.

The most commonly used protocols include:

SNMP

The industry standard for network monitoring. SNMP is widely used to collect status information and alarm notifications within centralised monitoring platforms.

Modbus TCP

Commonly deployed in industrial environments and Building Management Systems, where energy monitoring and technical building services need to operate together.

REST API

Increasingly, organisations want to integrate PDU data directly into their own dashboards, cloud platforms or automation software. A REST API provides a flexible and straightforward way to achieve this.

By supporting open standards, organisations can more easily expand their infrastructure while reducing dependency on a single software platform.

Energy Management Is Becoming Increasingly Important

Alongside availability, sustainability has become a growing priority.

More and more organisations want detailed insight into:

• energy consumption per rack;
• energy usage by department or business unit;
• long-term consumption trends;
• peak power demand; and
• opportunities to improve energy efficiency.

The data collected by a Rack PDU can make a significant contribution to achieving these objectives.

It provides valuable information not only for technical administrators, but also for facilities management, sustainability reporting and capacity planning.

Monitoring Is Not an End in Itself

Collecting data only creates value when it leads to better operational decisions.

Before implementing a monitoring strategy, consider the following questions:

• What information do we actually need?
• Who will use this data?
• Which alerts are genuinely relevant?
• How will abnormal conditions be investigated and resolved?
• What reports do we want to generate?

An effective monitoring strategy aligns with the organisation’s operational processes, ensuring that valuable information is acted upon rather than becoming unused data.

Practical Example

Imagine an organisation adding a new AI cluster to an existing rack.

Without monitoring, it is difficult to determine how much additional load the new equipment introduces. Engineers often have to rely on calculations or assumptions rather than real operating data.

With real-time energy monitoring, it is possible to verify immediately:

• how much additional power is actually being consumed;
• whether the electrical load remains within safe operating limits;
• how the load is distributed across the different phases; and
• how much spare capacity is still available.

This enables expansion projects to be planned with greater confidence while reducing the risk of unexpected issues during deployment.

Monitoring transforms a Rack PDU from a passive power distribution device into an active component of the data centre infrastructure.

By providing insight into energy consumption, electrical loading and environmental conditions, organisations can improve capacity planning, detect faults more quickly and carry out future expansions with greater certainty.

A modern Rack PDU therefore supports not only today’s power distribution requirements, but also the intelligent management of tomorrow’s data centres.

Rack PDUs for AI, High-Density Computing and the Data Centres of Tomorrow

The demands placed on data centres are evolving rapidly. Whereas a typical server rack consumed less than 5 kW of power ten years ago, rack power densities of 15, 20 or even more than 30 kW are now increasingly common. In AI, high-performance computing (HPC) and GPU environments, power requirements can be significantly higher still.

This shift affects far more than servers and cooling systems. It also changes how electrical power must be distributed within the rack. As a result, a Rack PDU that was perfectly adequate only a few years ago may no longer meet the requirements of today’s IT infrastructure.

Selecting the right Rack PDU therefore requires a broader perspective than simply addressing current needs. The key question is not only how much power is required today, but also how the infrastructure is likely to evolve over the years ahead.

Why AI Is Changing the Requirements for Rack PDUs

AI applications rely on powerful GPUs and specialised processors that consume significantly more power than traditional servers.

While a conventional server may require only a few hundred watts, modern GPU servers can draw several kilowatts per system. When multiple GPU servers are installed within a single rack, the total power demand increases rapidly.

This means the power distribution infrastructure must not only provide sufficient capacity but also enable accurate monitoring to help prevent overload conditions.

The consequences of a power-related issue are also far greater. If an AI cluster experiences an unexpected outage, the result may not only be downtime but also the interruption of long-running model training or other mission-critical business processes.

High-Density Racks Require a Different Approach

As rack power densities continue to increase, the principles of rack design are changing as well.

In high-density environments, greater attention must be paid to factors such as:

• balanced load distribution across all phases;
• sufficient capacity for future expansion;
• the appropriate mix of C13, C19 or universal Cx outlets;
• well-organised cable management;
• accurate energy metering; and
• integration with monitoring and infrastructure management systems.

In these environments, a well-designed Rack PDU plays a key role in creating an infrastructure that is more efficient, easier to manage and better prepared for future growth.

Monitoring Is Becoming Increasingly Important

The higher the power density of a rack, the more important it becomes to have accurate insight into real-time energy consumption.

Real-time monitoring helps organisations to:

• identify peak loads;
• monitor load distribution across individual phases;
• plan future expansions;
• prevent overload conditions; and
• analyse long-term energy consumption trends.

This enables infrastructure teams to make informed decisions based on real operational data rather than assumptions or conservative safety margins.

Scalability as a Design Principle

A server rack is rarely designed solely for today’s requirements.

New servers, additional storage capacity and more demanding networking equipment mean that the electrical load of a rack almost always changes throughout its operational life.

For that reason, it is sensible to plan ahead for:

• additional outlets;
• higher power capacities;
• extra environmental sensors;
• future monitoring requirements; and
• integration with new software platforms.

A scalable infrastructure reduces the need to replace major components as the IT environment continues to evolve.

Open Integration Prevents Future Limitations

Increasingly, organisations operate infrastructure supplied by multiple vendors.

Monitoring software, DCIM platforms, Building Management Systems (BMS) and bespoke dashboards all need to exchange information seamlessly.

As a result, support for open communication standards has become increasingly important.

When selecting a Rack PDU, it’s worth verifying:

• which communication protocols are supported;
• whether a well-documented API is available;
• how easily data can be integrated into existing management software; and
• whether future expansion remains possible without becoming dependent on a single vendor.

An open architecture provides greater flexibility and significantly reduces the risk of vendor lock-in.

Sustainability and Energy Efficiency

Sustainability is also becoming an increasingly important priority for data centres.

Organisations not only need to comply with environmental regulations but also want a clearer understanding of the actual energy consumption of their IT infrastructure.

A modern Rack PDU can support these objectives by providing reliable data for:

• energy reporting;
• capacity planning;
• rack load optimisation; and
• internal sustainability initiatives.

This information supports both technical decision-making and wider organisational objectives.

The Rack PDU as Part of a Larger Ecosystem

A modern Rack PDU does not operate in isolation.

Power distribution is just one element of a wider infrastructure in which UPS systems, generators, cooling, monitoring, security and network management all work together.

For that reason, a Rack PDU should not be viewed simply as a piece of hardware, but as a key building block within an integrated data centre design.

Ultimately, it is the interaction between these systems that determines the availability, efficiency and flexibility of the data centre.

Checklist for AI and High-Density Projects

When selecting a Rack PDU for an AI or high-density environment, review the following considerations:

Checkpoint	Why It Matters
Is sufficient spare power capacity available?	Helps avoid premature replacement as demand grows.
Is phase-level load visibility available?	Supports effective load balancing across all phases.
Are enough C19 or universal Cx outlets provided?	Required for higher-power equipment such as GPU servers.
Can energy consumption be monitored in real time?	Supports accurate capacity planning and operational insight.
Can the PDU integrate with a DCIM platform?	Enables centralised monitoring, reporting and management.
Is the solution designed for future expansion?	Extends the operational life of the infrastructure.
Are open communication protocols supported?	Reduces dependency on a single software platform and helps prevent vendor lock-in.

The rise of AI, GPU computing and high-density racks is fundamentally changing the way data centres are designed. As a result, the importance of a future-ready power distribution strategy continues to grow.

When selecting a Rack PDU, it is therefore important to look beyond today’s power requirements and consider scalability, monitoring capabilities, integration options and the flexibility to support future technological developments.

A well-chosen Rack PDU provides not only the foundation for reliable power distribution, but also for a data centre that is ready to meet the challenges of the years ahead.

Vendor Lock-In: Why an Open Rack PDU Platform Is Becoming Increasingly Important

When selecting a Rack PDU, organisations often focus on technical specifications such as power capacity, outlet configuration and monitoring capabilities. Yet one important consideration is frequently overlooked during the purchasing process: vendor lock-in.

Vendor lock-in occurs when an organisation becomes dependent on a single supplier for software, firmware, expansion options or ongoing management. This can limit flexibility, increase long-term costs and make future upgrades unnecessarily complex.

For modern data centres, it is therefore important to evaluate not only the hardware available today, but also the freedom to adapt and expand the infrastructure in the future.

What Is Vendor Lock-In?

Vendor lock-in occurs when an organisation becomes dependent on a single supplier for the management, maintenance or expansion of its infrastructure.

This dependency can arise for several reasons, including:

• proprietary communication protocols;
• vendor-specific software;
• mandatory software licences;
• limited integration capabilities; and
• hardware that only works with the manufacturer’s own accessories or software.

In itself, this may not be an immediate problem. However, as the infrastructure grows and evolves, such dependencies can significantly reduce flexibility.

Why Is This Becoming More Important?

Data centres are constantly evolving.

New servers are deployed.

Monitoring platforms are replaced or upgraded.

Cloud technologies continue to develop.

Cyber security requirements become more stringent.

New sustainability reporting obligations are introduced.

A Rack PDU, by contrast, often remains in service for ten years or more.

For that reason, it is essential that the chosen solution can continue to integrate easily with new systems throughout its operational life.

Open Communication Protocols

An important consideration is how a Rack PDU communicates with other systems.

Widely adopted industry standards include:

• SNMP
• Modbus TCP
• REST API
• Syslog
• LDAP
• RADIUS

By supporting open standards, organisations can integrate their Rack PDUs more easily with existing monitoring, security and infrastructure management platforms.

This prevents valuable operational data from being confined to a single software ecosystem.

Data Ownership

Increasingly, organisations regard operational data as a strategic asset.

Information such as energy consumption, electrical loading, alarm events and historical trends is used for:

• capacity planning;
• sustainability initiatives;
• regulatory compliance;
• cost analysis; and
• predictive maintenance.

For this reason, organisations should retain full ownership and control of their operational data.

When selecting a Rack PDU, it is advisable to ask:

• Who owns the collected data?
• Can the data be exported easily?
• Are standard export formats supported?
• Can the data be shared with other systems?

Open access to data helps ensure that valuable operational information does not become locked within a single software platform.

Software and Licensing

The overall cost of a Rack PDU extends well beyond the hardware itself.

Software has become an increasingly important part of the total cost of ownership.

Some solutions require additional licences for features such as:

• monitoring;
• reporting;
• user management;
• API access;
• firmware updates; and
• advanced functionality.

Other manufacturers include these capabilities as standard.

For this reason, organisations should evaluate not only the initial purchase price but also the lifetime cost of ownership when comparing Rack PDU solutions.

Firmware and Cyber Security

Intelligent Rack PDUs are connected to the network.

As a result, they form part of an organisation’s overall cyber security strategy.

Important questions to consider include:

• How are firmware updates delivered?
• How long will the manufacturer provide security updates?
• Which authentication methods are supported?
• Are security vulnerabilities actively addressed?
• Is comprehensive event logging available for auditing purposes?

Today, cyber security is no longer an optional extra—it has become a key selection criterion for all network-connected infrastructure, including Rack PDUs.

Integration with Existing Infrastructure

A Rack PDU rarely operates as a standalone system.

In practice, it needs to work alongside systems such as:

• DCIM platforms;
• Building Management Systems (BMS);
• network monitoring tools;
• asset management systems;
• automation software; and
• cloud platforms.

The easier these integrations are to implement and maintain, the lower the management costs are likely to be over the full lifetime of the installation.

Flexibility for Future Expansion

Data centres are changing faster than ever.

New technologies, evolving workloads and increasing power requirements continually place new demands on the infrastructure.

When selecting a Rack PDU, it is therefore important to consider not only today’s requirements, but also questions such as:

• Can communication modules be replaced at a later stage?
• Can the firmware be upgraded with new functionality?
• Will the PDU support future communication protocols?
• Can the solution adapt to new software platforms?
• Can the system be expanded without replacing the entire PDU?

A flexible architecture can significantly extend the useful life of the investment.

Practical Checklist

Use the following questions when selecting a Rack PDU:

Question	Why It Matters
Does the PDU support open protocols?	Enables straightforward integration.
Is an API available?	Allows integration with bespoke software.
Are software licences required?	Provides insight into the total cost of ownership.
Do you retain ownership of your data?	Reduces dependency on a single supplier.
How are firmware updates managed?	Supports cyber security and long-term continuity.
Is integration with existing systems straightforward?	Helps reduce implementation costs.
Can the solution adapt to future requirements?	Extends the operational life of the installation.

A Rack PDU is more than a power distribution device. It is a network-connected component, a source of operational data and an integral part of the data centre infrastructure.

When selecting a solution, it is therefore important to consider not only today’s technical specifications, but also flexibility, integration capabilities and the total cost of ownership over the next ten years.

An open architecture helps organisations integrate new technologies more easily, retain ownership of their data and support future expansion without becoming unnecessarily dependent on a single supplier.

Expert Insights: 10 Practical Lessons for Choosing a Rack PDU

Every data centre environment is different. Even so, the same challenges tend to arise during design, implementation and expansion projects.

Based on practical experience, there are several considerations that can make the difference between a solution that operates reliably for many years and an infrastructure that quickly reaches its limits.

The following insights can help you avoid common mistakes.

1. Design for the Next Ten Years, Not Just Today

A Rack PDU often remains in service considerably longer than the servers connected to it.

Servers are typically replaced every three to five years, while a high-quality Rack PDU may remain part of the infrastructure for ten years or more.

You should therefore avoid selecting a solution based solely on the current rack configuration.

Ask yourself:

• What equipment might be installed in this rack in three years’ time?
• Is the power requirement likely to increase?
• Will monitoring become more important?
• Could AI workloads or GPU servers be introduced?

A relatively small investment in additional flexibility can prevent a costly replacement later.

2. The Number of Outlets Does Not Tell the Whole Story

A common mistake is to compare PDUs solely by the number of outlets they provide.

However, twenty C13 outlets offer little value if half of the equipment will eventually require C19 connections.

Always consider:

• the type of equipment;
• the expected power demand;
• the required ratio of C13 and C19 outlets; and
• future expansion.

The right outlet configuration is more important than simply choosing the PDU with the greatest number of connections.

3. Allow Room for Growth

Almost every rack changes during its operational life.

Additional storage.

New switches.

More servers.

Higher-powered GPU systems.

For that reason, it is advisable not to design right up to the maximum available capacity.

Spare power capacity and unused outlets provide valuable flexibility and make future expansion easier.

4. Monitoring Only Adds Value When You Act on It

Modern Rack PDUs can collect large volumes of data.

But data alone does not solve operational problems.

Consider in advance:

• Which information do we actually need?
• Which alarms are genuinely relevant?
• Who will respond to an alert?
• Which reports will we actually use?

A small number of useful alerts is often more valuable than hundreds of warnings that are eventually ignored.

5. Keep Cabling Clear and Organised

A well-designed rack should not only be technically correct, but also easy to maintain.

Planning ahead for factors such as:

• the position of the PDU;
• cable lengths;
• power cable routing; and
• clear separation of the A and B feeds;

makes maintenance easier and reduces the risk of human error.

6. Consider Management, Not Just Hardware

A Rack PDU is increasingly part of a wider infrastructure management environment.

It is therefore important to think about questions such as:

• Who should have access?
• Which permissions should different users have?
• Which systems need to receive data?
• How will firmware updates be carried out?

These decisions are at least as important as the hardware specification itself.

7. Avoid Dependency on a Single Supplier

Data centres are constantly evolving.

New software.

New monitoring platforms.

New security requirements.

Choose solutions that can integrate easily with other systems and support open standards.

This gives you greater freedom when expanding or changing the infrastructure in the future.

8. Do Not Overlook the Installer

A good design also takes account of the people who will install and maintain the equipment.

Practical details such as:

• clear labelling;
• a logical outlet layout;
• sufficient room for cable management; and
• easy replacement of components;

can save a considerable amount of time over the life of the installation.

9. The Cheapest Solution Is Not Always the Most Cost-Effective

Rack PDU selection is often heavily influenced by the initial purchase price.

However, the total cost consists of far more than the hardware alone.

Consider:

• implementation;
• management;
• software;
• licences;
• maintenance;
• expansion; and
• energy management.

A solution with a higher purchase price may ultimately result in lower operating costs over its full service life.

10. Always Start with the Project, Not the Product

This may be the most important lesson of all.

Every organisation has different requirements.

Every server room is different.

Every growth strategy is different.

There is therefore no universal “best” Rack PDU.

The right solution can only be determined once you clearly understand:

• which equipment will be installed;
• what level of availability is required;
• how monitoring will be organised;
• which expansions are expected; and
• how the infrastructure is likely to grow over the coming years.

Only then can you identify the Rack PDU that best suits the project.

Choosing a Rack PDU is not simply a matter of comparing technical specifications. The decisions made during the design phase are equally important.

By planning ahead, allowing for future expansion and considering management requirements from the outset, you can create an infrastructure that performs reliably today and is ready for the challenges of tomorrow.

Which Rack PDU Is Right for Your Environment?

There is no universal Rack PDU that is the best choice for every application. The right solution depends on the requirements of your infrastructure, the functionality you need and the expected growth of the data centre.

The decision guide below will help you select the most suitable type of Rack PDU step by step.

Step 1 – Do You Only Need to Distribute Power?

Yes

If you only require reliable power distribution and do not need visibility into energy consumption or remote management, a Basic PDU will usually be sufficient.

Typical applications include:

• Small server rooms
• Network cabinets
• Test environments
• Equipment without monitoring requirements

➡️ Recommendation: Basic PDU

No

Continue to Step 2.

Step 2 – Do You Need Visibility into Energy Consumption?

Yes

If you want to understand how much energy a rack is using or help prevent overload conditions, you should choose at least a Metered PDU.

This provides insight into areas such as:

• current consumption;
• load;
• power usage; and
• available capacity.

Then continue to Step 3.

No

If monitoring is unlikely to become important in the future, a Basic PDU will often remain sufficient.

Step 3 – Do You Want to Monitor the Rack Remotely?

Yes

A Monitored PDU is the logical choice.

It allows you to:

• track energy consumption;
• receive alarm notifications;
• monitor electrical load;
• read environmental sensors; and
• integrate data with monitoring software.

Continue to Step 4.

No

➡️ Recommendation: Metered PDU

Step 4 – Do You Need to Restart Equipment Remotely?

Yes

If individual devices need to be switched off or restarted remotely, choose a Switched PDU.

This is particularly useful for:

• colocation environments;
• unmanned locations;
• international organisations; and
• remote infrastructure management.

Then continue to Step 5.

No

➡️ Recommendation: Monitored PDU

Step 5 – Are You Operating in a Mission-Critical Environment?

Examples include:

• enterprise data centres;
• hyperscale environments;
• cloud platforms;
• financial institutions;
• healthcare organisations;
• telecommunications;
• government environments.

Yes

In these environments, additional requirements often include:

• comprehensive event logging;
• user roles and permissions;
• cyber security;
• DCIM integration;
• API integrations; and
• scalability.

➡️ Recommendation: Managed PDU or an advanced Switched PDU, depending on the required management functionality.

No

In many cases, a Switched PDU will provide more than enough functionality.

Step 6 – Do You Expect the Rack to Grow Over the Coming Years?

Yes

Do not look only at the current configuration.

Also check for:

• sufficient spare outlets;
• capacity for additional power demand;
• support for future monitoring requirements;
• expansion options; and
• compatibility with future software platforms.

A Rack PDU is often used for ten years or more, so it is important to plan ahead.

No

If the configuration is expected to remain stable, a simpler model may be sufficient.

Step 7 – How Important Is Flexibility?

Consider the following questions:

✔ Do you want to be able to modify the configuration?

✔ Do you expect to need non-standard outlet combinations?

✔ Do you require specific cable lengths?

✔ Must the PDU comply with existing standards within your organisation?

✔ Do you regularly work on project-based installations?

If you answer “yes” to several of these questions, it is worth considering not only standard models, but also solutions that better match the specific requirements of the project.

Decision Tree at a Glance

Question	Yes	No
Do you only need power distribution?	Basic PDU	Continue to the next step
Do you need energy metering?	Metered PDU	Basic PDU
Do you need remote monitoring?	Monitored PDU	Metered PDU
Do you need remote switching?	Switched PDU	Monitored PDU
Do you need advanced management?	Managed PDU	Switched PDU
Are you upgrading an existing installation?	Consider an Inline Meter	Select a new PDU

Practical Considerations

Regardless of which type of Rack PDU you choose, always verify the following:

• Does the maximum power capacity support both the current and future load?
• Is the ratio of C13 and C19 outlets suitable?
• Is a single-phase or three-phase solution required?
• Does the PDU fit within the rack design?
• Is redundancy required?
• Can the PDU integrate with existing management platforms?
• Are firmware updates and security measures properly managed?
• Does the solution align with the organisation’s growth plans?

Common Mistake

A common mistake is to focus immediately on a specific brand or model.

A better approach is to define the technical and operational requirements of the project first. Only then does it become clear which type of Rack PDU is genuinely suitable for the environment.

This method helps prevent the selection of a solution that meets today’s requirements but becomes restrictive within a few years.

The right Rack PDU is not the one with the most features, but the one that best supports your organisation’s objectives.

By assessing monitoring, management, power capacity, scalability and future expansion in a structured way, you can select a solution that is not only reliable today, but also prepared for the developments of the years ahead.

The 10 Biggest Mistakes When Choosing a Rack PDU

Choosing a Rack PDU may appear straightforward at first. In practice, however, many organisations make the same mistakes when designing or purchasing a new power distribution solution.

These issues often only become apparent when a rack is expanded, a fault occurs or the organisation needs greater visibility into energy consumption.

By considering the following points in advance, many common problems can be avoided.

1. Focusing Only on the Purchase Price

A Rack PDU is a long-term investment.

Even so, the decision is often based solely on the lowest initial purchase price.

This can mean overlooking important factors such as:

• scalability;
• monitoring capabilities;
• software;
• management;
• maintenance; and
• future integrations.

As a result, a cheaper solution may ultimately prove more expensive than a slightly more advanced option that can continue to grow with the organisation for many years.

2. Designing Only for Current Requirements

A server rack rarely remains unchanged.

New servers.

Additional storage.

Faster switches.

GPU systems.

Everything evolves.

When a PDU is specified to match the current configuration exactly, capacity problems often arise within only a few years.

Always design with sufficient room for future growth.

3. Choosing the Wrong Ratio of C13 and C19 Outlets

Many organisations focus only on the total number of outlets required.

However, the type of connection is just as important.

An increasing number of high-performance servers use C19 connections.

If this is not taken into account, organisations may later need to rely on adapters or other undesirable workarounds.

4. Underestimating the Importance of Monitoring

Monitoring is sometimes treated as an optional extra.

In reality, it provides valuable information about:

• energy consumption;
• electrical load;
• usage trends;
• overload conditions;
• temperature; and
• capacity planning.

Monitoring often becomes essential as an organisation grows.

5. Overlooking Management Requirements

Today, a Rack PDU is an integral part of the network infrastructure.

For that reason, it is important to consider aspects such as:

• user access and permissions;
• event logging;
• firmware management;
• authentication;
• cyber security; and
• remote management.

These considerations are every bit as important as the hardware itself.

6. Focusing Only on the Number of Outlets

A PDU with more outlets is not necessarily the better choice.

More important factors include:

• power capacity;
• load capability;
• scalability;
• outlet types;
• monitoring capabilities; and
• redundancy.

The right configuration is far more important than simply having the largest number of outlets.

7. Forgetting About Vendor Lock-In

Many organisations only start thinking about software, APIs and licensing after the PDU has already been installed.

Before making a decision, check:

• which communication protocols are supported;
• how data can be exported;
• which software is required; and
• whether future integrations will remain possible.

Doing so helps avoid unnecessary dependence on a single supplier.

8. Inadequately Planning for Redundancy

An A/B power feed only delivers true redundancy when the entire design is built around it.

Make sure to verify:

• both power paths;
• the load on each feed;
• dual power supplies;
• maintenance scenarios; and
• failover procedures.

Redundancy is not determined by the PDU alone, but by the overall infrastructure design.

9. Ignoring Future Technologies

AI.

GPU servers.

High-density racks.

Next-generation server platforms.

Power requirements continue to increase.

A Rack PDU is often used for much longer than the equipment connected to it.

For that reason, it is wise to consider technologies that may only become relevant several years from now.

10. Starting with the Product Instead of the Project

This is perhaps the most common mistake of all.

Many organisations begin by browsing a product catalogue.

Experienced infrastructure engineers start by asking questions such as:

• What equipment will be installed in the rack?
• How is the environment expected to grow?
• What level of monitoring is required?
• How will the rack be managed?
• What level of availability is needed?
• How can future limitations be avoided?

Only once these questions have been answered does it become clear which Rack PDU is the right choice.

Choosing the right Rack PDU involves much more than comparing technical specifications.

The best solution is achieved when technical requirements, management, monitoring, future growth and long-term scalability are all considered from the outset.

By avoiding the most common pitfalls, organisations can build an infrastructure that remains reliable and fit for purpose for many years.

The Right Rack PDU Starts with the Right Questions

A Rack PDU is far more than a device for distributing power. It forms the critical link between the electrical infrastructure and the IT equipment that supports mission-critical business operations every day.

As this guide has shown, selecting a Rack PDU involves much more than comparing the number of outlets or the maximum power rating. Monitoring, scalability, redundancy, energy management, cyber security, integration capabilities and future expansion all determine whether a solution will continue to meet operational requirements over the long term.

For that reason, the selection process should not begin with a product catalogue, but with a thorough assessment of the project’s technical and operational requirements.

Every IT environment is different. A colocation data centre has different requirements from an edge deployment. An AI cluster demands a different approach from a traditional server room. Even within the same organisation, individual racks may have very different configurations and operational objectives.

A future-ready Rack PDU should therefore not only meet today’s requirements, but also provide the flexibility to adapt to changing technologies, higher power densities and evolving management and monitoring needs.

Why a Project-Based Approach Is Becoming Increasingly Important

More and more organisations are choosing to base their Rack PDU selection on the specific requirements of each project rather than on a standard product.

This means first considering questions such as:

• How much power capacity is required now and in the future?
• What equipment will be connected?
• What level of monitoring is needed?
• Is remote switching required?
• How will redundancy be implemented?
• Which software and infrastructure management platforms will be used?
• What are the cyber security and compliance requirements?
• How is the infrastructure expected to grow over time?

Only once these questions have been answered can an organisation select a solution that aligns technically, operationally and economically with its long-term objectives.

The Schleifenbauer Approach

At Schleifenbauer, this project-driven approach is at the heart of everything we do.

Rather than asking organisations to choose from a limited range of standard configurations, every Rack PDU is tailored to the technical requirements of the project. The result is a solution that fits the infrastructure, instead of forcing the infrastructure to adapt to the limitations of a standard product.

This philosophy is reflected in the way Schleifenbauer designs and manufactures its Rack PDUs:

• designed and manufactured in the Netherlands;
• hardware and firmware developed entirely in-house;
• open standards and an open API enable straightforward integration with existing systems;
• DCEM software is available without recurring licence fees;
• solutions are engineered with a focus on reliability, scalability and long-term durability; and
• close collaboration between engineers and customers ensures that real-world experience continuously drives product improvements.

The result is a Rack PDU that not only meets the technical specifications on paper, but also delivers the performance, flexibility and reliability required in modern data centres, server rooms and other mission-critical IT environments.

A Long-Term Investment

A Rack PDU is often one of the longest-lasting components within a server rack. While servers, switches and storage systems are replaced regularly, the power distribution infrastructure typically remains in service for ten years or more.

For that reason, selecting a Rack PDU deserves the same level of consideration as choosing servers, networking equipment or cooling systems.

A well-designed solution contributes to:

• higher availability;
• improved energy management;
• more efficient maintenance;
• easier capacity planning;
• lower operating costs; and
• the flexibility to support future expansion.

As a result, a Rack PDU provides not only the foundation for reliable power distribution, but also for a data centre that is ready to meet the demands of the years ahead.

Want to Learn More?

Whether you are designing a new data centre, expanding an existing server room or replacing your current Rack PDUs, it pays to define your technical requirements carefully before selecting a solution.

The engineers at Schleifenbauer are happy to advise on topics such as power distribution, redundancy, monitoring, system integration and scalability. Based on your project requirements, they can help develop a solution that meets both your current needs and your organisation’s future ambitions.

Let’s discuss your project!

+31 73 523 0256

info@schleifenbauer.eu

Het Sterrenbeeld 52
5215 ML ‘s-Hertogenbosch
Nederland