SIVACON 8PS - LI system

SIVACON 8PS – LI system

The efficient power supply for infrastructure and industry from 800 A up to 6300 A, for multi-storey buildings and industrial applications.

Energy and data successfully put on track


powerline technology

Rely on SIVACON 8PS with the new powerline technology

Innovative powerline technology enables SIVACON 8PS busbar trunking systems to transmit energy and energy data economically, safely, and reliably with plug-and-play functionality. Energy data is transmitted to automation and energy management systems and as well as to cloud-based systems (IoT) via the conductors. 

Busbar instead of cables

SIVACON 8PS – LI system for infrastructure and industry

When you choose the LI busbar trunking system, you're opting for a secure, future-proof investment. This is because you're banking on an integrated solution for safe and reliable power supply that is highly flexible and efficient across the board – from planning and installation to operation. This reliable system is particularly well-suited for applications in the 800 A to 6,300 A range that have to reliably transmit large volumes of power over long distances – such as in infrastructures, multi-storey buildings and industrial installations. 

Protecting people and safeguarding your investment

Thanks to its compact sandwich design, the LI system allows efficient and modern power management with a low voltage drop. It can be operated up to full load at high temperatures without derating.

The system's future-proof functionalities and innovative technical features such as versatile tap-off units with communication-capable measuring and switching devices are not its only persuasive highlights: Its safety standards are also impressive. A broad selection of design verified trunking and tap-off units compliant, with Parts 1 and 6 of the IEC 61439-series international standards ensure a high level of personal and equipment safety as well as enhanced operational availability. What’s more, the system meets the Class EI90 and EI120 fire protection requirements, tested to EN 1366 Part 3 European building regulations.

Effective and flexible in planning and operation

The LI busbar trunking system empowers you to build a cost-efficient infrastructure. Its compact sandwich design enables the system to be easily integrated into narrowly confined building structures. A range of conductor configurations and modular tap-off units equipped with circuit-breakers and fuse switch disconnectors or with various junction units make it simple to flexibly design and adjust your power supply system at any time.


In addition, tap-off units for up to 1,250 A that can be connected while lines are live enable simple changes or adjustments to be made during operation*. This can prove useful, for example, when live production lines require new tap-off units for machinery or work stations.


* according with EN 50110-1 (VDE 0105-1); please always observe national regulations/standards


01 Transformer connection/feeding unit
02 Fire barrier
03 Connection/feeding unit to SIVACON S8
04 Straight trunking unit
05 Junction unit
06 Tap-off unit
07 Accessories for mounting

SIVACON 8PS - LI system. Your advantages at a glance

  • High degree of protection to IP55, and IP66 for power transmission
  • Fire barrier tested in accordance with European Standard EN 1366-3
  • Fire resistance of 180 minutes in accordance with IEC 60331
  • Cost-efficient infrastructure through compact sandwich design
  • Reliable installation through hook and bolt connection
  • Cost-effective data transmission using powerline technology


Brochure: "An integrated solution for safe and efficient power supply – LI busbar trunking system"


Technical data
Rated insulation voltage Ui
1000 V AC
Rated operational voltage Ue
1000 V AC
Degree of protection
IP55, IP66*
Rated current InA
800 A to 6300 A
Rated peak withstand Ipk
Up to 330 kA
Rated short-time withstand current Icw (1 s)
Up to 150 kA
Number of conductors
4 to 6 conductors (incl. 200 % N resp. additional Clean Earth)
Fire load
Max. 15.54 kWh/m
Fire load (per tap-off point)
0.98 kWh
Tap-off point

Up to 3 per 3 m length (per side)

Tap-off unit
Up to 1250 A
Data transmission
powerline, data cable
Joining system
Hook and bolt connection with shear-off nut
Conductor material
Aluminium or copper
Housing material
Painted sheet steel
*) IP66 for mere power transmission runs without feeders

SIVACON 8PS - LI system in practice: one system, many applications

Integrated power supply solutions of the SIVACON 8PS product family's LI system provide the best option in places where large volumes of electric power have to be transmitted reliably and efficiently – whether for industrial manufacturing lines, multi-storey buildings, or sensitive locations such as data centers, airports, and hospitals.
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Downloads, support, services

Use our service offerings

Tender specifications, catalogues, technical documentation, and of course contact with our Customer Support Center: Here you will find important documents and links for your SIVACON 8PS busbar trunking systems. 

Technical documentation

You will find an up-to-date overview of the technical documentation for the SIVACON 8PS busbar trunking systems at: 
Industry Online Support

Tender specifications

To support you, we offer a comprehensive range of tender specification texts at: 
Tender specifications 

Totally Integrated Power (TIP) Consultant Support

Expert staff from our TIP Consultant Support unit will provide you with targeted support for the planning and design of electrical power supply systems at:
Consultant Support for Totally Integrated Power (TIP)

Online ordering system

Meet complex requirements whenever they arise – with the SIVACON 8PS busbar trunking systems.
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Siemens Power Academy

The Siemens Power Academy offers professional training courses in the fields of power generation, transmission, and distribution.
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News, Media and Events

Trade shows, and regional and international trade fairs and exhibitions: Get to know the SICAVON 8PS busbar trunking systems. Come learn firsthand about this innovative alternative to cables.