Electrical power is indispensable across all areas of modern infrastructure – particularly in professional environments, where safe and reliable power distribution systems are essential. This applies equally to event technicians, lighting engineers, facility operators, contractors and site managers. Hardly any stage production, film set, construction site or industrial installation can operate without a dependable power supply. A flexible, safe and high-performance distribution system is the foundation for delivering electrical power reliably from the source to the equipment – regardless of the environment or application.
What Is a Power Distribution Unit?
A power distribution unit (PDU) is an electrical system designed for the safe and structured distribution of electrical power from a central supply point to multiple outgoing circuits. Unlike simple socket-outlet solutions, professional power distribution systems are designed for higher power capacities and incorporate defined protection, switching and distribution functions.
Typical applications range from temporary installations on construction sites and at events to permanent power distribution systems in industrial environments. Power distribution is generally based on three-phase systems (400V), combined with various output configurations such as CEE and Schuko outlets or application-specific connector systems.
In addition to power distribution itself, modern power distribution units also fulfil key requirements relating to operational safety and compliance with applicable standards. These include electrical aspects such as integrated protective devices including residual current devices and circuit breakers, a clearly structured circuit layout and balanced load distribution across multiple phases, as well as mechanical requirements relating to enclosure design and internal construction.
In professional applications, distribution systems are often configured for specific operational requirements. Alongside standardised solutions, custom-built systems are frequently used, tailored precisely to the required power capacity, connector systems, distribution concept and environmental conditions.
Distribution Solutions by INDU-ELECTRIC – Reliable for Professional Applications
Power distribution units enable the safe distribution of electrical power from a central supply point to a wide range of electrical loads. They are used wherever a flexible and high-performance power supply is required – from industrial facilities and construction sites to live events and film productions.
Depending on the application, systems vary in terms of power capacity, connection types and design. Mobile power distribution units, temporary construction power distribution systems and specialised solutions for event and broadcast applications are specifically designed to meet the requirements of their respective operating environments.
What to Consider When Selecting a Distribution System
Selecting the right solution depends largely on the required power capacity, the connector systems used and the specific operating conditions. In addition to standard configurations for 16A, 32A, 63A and 125A, demanding applications often require high-capacity incoming supplies such as 400A or 630A via Powerlock or busbar systems. Complex power distribution systems may require significantly higher current ratings.
Another key factor is the selection of connectors. Depending on the country and application, different systems may be used, including CEE, PowerCON, TRUE1 and Schuko outlets, as well as multicore connection systems such as 19-pin (Socapex) or H-B16. In addition, country-specific connector systems are often required, such as North American connectors (e.g. Camlock, Twistlock or Edison), BAC connectors in the UK or Clipsal systems in Australia.
International standards, network configurations and colour coding schemes also play an important role in ensuring a safe and compliant system design. Robust materials and a well-engineered construction are equally essential for professional applications. To achieve this, INDU-ELECTRIC uses the specially developed THERMOLENE® material, which offers high mechanical strength, dimensional stability and optimised heat dissipation. In addition, the material is flame-retardant and self-extinguishing – essential characteristics for ensuring a high level of operational safety even under demanding conditions.
Protective and safety devices are another key consideration. Depending on the application, residual current devices (RCD or RCM), miniature and moulded-case circuit breakers (MCB or MCCB), RCBOs or other protective devices may be required. Power distribution should always be considered within the context of the overall electrical installation. Taking upstream and downstream distribution systems into account, together with proper selectivity coordination of protective devices, helps to limit faults to the affected circuit and maximise system availability. In mobile applications, it is also important to consider that distribution equipment is frequently integrated into changing power supply concepts and should therefore be suitable for different network and distribution configurations.
Key selection criteria include:
- Required power capacity and supply system
- Connectors and connector systems used on the incoming and outgoing sides
- Required protection and safety devices
- Applicable national and international standards
- Enclosure material, ingress protection rating and mechanical design
- Selectivity and consideration of upstream and downstream power distribution units
Suitable Solutions for a Wide Range of Applications and Requirements
Professional applications require reliable and flexible power distribution systems. Whether used in stationary industrial environments, on mobile construction sites or as part of complex event and film production setups, PDUs must be precisely aligned with their operating conditions.
INDU-ELECTRIC provides solutions for both mobile and stationary applications – from film sets, events and construction sites through to demanding industrial projects. In addition to standard power distribution units, complex systems are developed that integrate intelligent, monitorable and communicative components, enabling extended control and system monitoring capabilities.
Depending on the industry and application, the requirements for power distribution systems vary considerably – both technically and in terms of standards, connection configurations and environmental conditions. An overview of typical applications and industry-specific solutions can be found on our page “In Use Worldwide”.
Custom Power Distribution Systems for Specific Requirements
In many professional applications, standardised solutions are not sufficient. Distribution systems must be precisely tailored to power requirements, connection concepts and operating conditions. INDU-ELECTRIC develops and manufactures customised solutions for this purpose – from technical design and engineering through to final implementation. This is supported by a fully integrated and practice-oriented manufacturing process, covering all stages from planning and design to production and final testing.
Thanks to a high level of vertical integration, including in-house enclosure manufacturing and precise wiring, robust and durable systems are produced that operate reliably even under demanding conditions. Custom configurations are available from a quantity of one, enabling the precise implementation of specific requirements.
Anyone looking for power distribution systems for demanding applications needs more than compromises – they need well-engineered solutions with clearly defined characteristics. INDU-ELECTRIC stands for individually configurable distribution systems that meet the highest standards of safety, flexibility and practical usability.
When Is a Custom Solution the Right Choice?
Standard power distribution units reliably cover a wide range of applications. However, a custom solution becomes the right choice whenever there are specific requirements relating to power capacity, connections, enclosure design, protection functions or the operating environment. This is usually the case in professional applications.
Typical examples include specialised connector systems for international projects, customised incoming and outgoing power configurations, integrated metering and monitoring technology, or installations with limited available space. Tailor-made systems are also frequently required in the events and film industries, on construction sites, in industrial applications and for infrastructure projects.
A custom-designed solution allows functionality, safety and ease of operation to be optimised for the intended application. In addition, aspects such as handling, transportation, maintenance and future expansion can be specifically taken into account. The result is a distribution system that is precisely tailored to the requirements of the application and can be operated efficiently throughout its entire service life. INDU-ELECTRIC develops and manufactures customised power distribution systems from a quantity of just one unit.
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