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New busbar trunking system enables higher energy efficiency for data centers of tomorrow 

The LData busbar trunking system is an economical and flexible alternative to conventional cables and gives operators a solution for intelligent and future-proof power distribution. It is based on the technology of the existing Siemens LD and BD2 systems from the Sivacon 8PS portfolio and offers new features such as data center-specific tap-off units to easily and flexibly connect additional server racks as well as the ability to transmit data directly via the conductors.
The new busbar trunking system transmits not only power but also data such as current and diagnostic information, thereby contributing to the digitalization of the power distribution. It collects this energy data using communication-capable measuring and switching devices from the Sentron portfolio. Thanks to the integrated powerline technology, it transmits the data via standard communication protocols to high-level energy management systems as well as cloud-based systems for further processing and analysis. This data creates energy transparency and supports predictive maintenance by making energy saving potentials visible and counting operating hours, for example. Continuous monitoring enables possible faults, including those caused by defective components, to be detected and avoided at an early stage. This allows data centers to operate more efficiently and reliably. By transmitting data directly via the busbars, there is no need for additional data cables and complex wiring. This makes it possible to save planning and installation time as well as material costs. The use of conductors made of lighter and more cost-efficient aluminum instead of copper lowers material costs as well.
“It’s expected that by 2020 as many as 50 billion devices will be connected to the Internet of Things. If you imagine 50 billion smartphones stacked on top of each other, this device tower would almost reach to the moon. Because of this enormous amount of data, the energy demand of data centers will continue to rise in the years to come. This will make efficient power distribution more critical than ever. Our solution is designed to meet the needs of the data centers of tomorrow. LData transmits currents up to 2,500 A and can thereby transfer higher volumes of electrical energy. Through choosing larger conductor cross-sections, energy loss during transmission can be optimized at the same time. Furthermore, the powerline technology allows operators to make energy consumption transparent and optimize it continuously,” said Carsten Schwarz, Product Life Cycle Manager for LData at Siemens Smart Infrastructure.
As a result of the ever-increasing volume of data, it must be possible to scale systems flexibly and cost-efficiently. Additional server racks can be supplied in the data center via the tap-off units of the LData busbar trunking system. The units can be installed via plug & play under voltage and without interrupting operations – subject to national standards. A variety of tap-off units are available for LData, allowing data centers to be expanded quickly and easily. Because of their compact design, the units can be placed either below or on the sides of the busbars. This can be done along the entire length of a busbar, e.g. at a spacing of 60 cm, corresponding to the grid of the server racks. Special tap-off points are no longer necessary, eliminating the associated planning and installation steps.

Additional server racks can be supplied in the data center via the tap-off units of the LData busbar trunking system.

A variety of tap-off units are available for LData (here in L-shape). They have a very compact design and can be placed either below or on the sides of the busbars.

A variety of tap-off units are available for LData (here in cubic shape). They have a very compact design and can be placed either below or on the sides of the busbars.

For further information on Siemens Smart Infrastructure, see
For more information about Sivacon 8PS LData, see
For further information about Light+Building 2020, see
Siemens Smart Infrastructure (SI) is shaping the market for intelligent, adaptive infrastructure for today and the future. It addresses the pressing challenges of urbanization and climate change by connecting energy systems, buildings and industries. SI provides customers with a comprehensive end-to-end portfolio from a single source – with products, systems, solutions and services from the point of power generation all the way to consumption. With an increasingly digitalized ecosystem, it helps customers thrive and communities progress while contributing toward protecting the planet. SI creates environments that care. Siemens Smart Infrastructure has its global headquarters in Zug, Switzerland, and has around 72,000 employees worldwide.
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Siemens AG (Berlin and Munich) is a global technology powerhouse that has stood for engineering excellence, innovation, quality, reliability and internationality for more than 170 years. The company is active around the globe, focusing on the areas of power generation and distribution, intelligent infrastructure for buildings and distributed energy systems, and automation and digitalization in the process and manufacturing industries. Through the separately managed company Siemens Mobility, a leading supplier of smart mobility solutions for rail and road transport, Siemens is shaping the world market for passenger and freight services. Due to its majority stakes in the publicly listed companies Siemens Healthineers AG and Siemens Gamesa Renewable Energy, Siemens is also a world-leading supplier of medical technology and digital healthcare services as well as environmentally friendly solutions for onshore and offshore wind power generation. In fiscal 2019, which ended on September 30, 2019, Siemens generated revenue of €86.8 billion and net income of €5.6 billion. At the end of September 2019, the company had around 385,000 employees worldwide. Further information is available on the Internet at
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Anna Korb

Smart Infrastructure

Freyeslebenstr. 1
91058 Erlangen

+49 9131 173 663 7