SIVACON 8PS - LR system

SIVACON 8PS – LR system

Current range from 400 A to

400 A
  • - The innovative alternative to cables

  • - The reliable busbar for a high level of protection in harsh environments

  • - For outdoor applications, tunnels, and building networking

Brochure „Energy and data successfully put on track”


Busbar instead of cables

SIVACON 8PS - LR system for outdoor applications

The LR busbar trunking system ensures reliable power transmission under adverse ambient conditions. Thanks to the system's epoxy cast-resin housing designed with a high, IP68-rating degree of protection and high short-circuit rating, it is perfectly suited for outdoor applications – such as for power transmission in petrochemical industry installations, outdoor networking of buildings sections, and for supplying power to subway rail line tunnels. 

Robust inside and out, versatile, and reliable

Forget about humidity and corrosive or salty atmospheres: These and similar environmental factors cannot harm the robust LR system. The epoxy cast-resin housing makes the system highly resistant to weather conditions and chemical substances, while also ensuring outstanding mechanical stability. The system's fire resistance rating of 180 minutes in accordance with IEC 60331 enhances the level of safety even further.

Optimum consistency for high currents

One convincing feature of the LR system is its versatility. Serving applications ranging from 400 A to 6,300 A, the system can be installed in flat, upright, vertical or horizontal configurations as needed. It can be optimally adapted to the given structural conditions using angles, connectors, and T-pieces, requiring little space for installation. And with its bolt-type terminal block, fitting and installation are simple and quick. The LR system is consistently integrated end-to-end, and, via adaptors, can be easily connected to LI and LD systems for indoor applications.


01 Straight trunking unit
02 Feeding unit
03 Junction unit
04 Junction box
05 Accessories
06 Adapter to the LI system
07 Expansion compensation
08 Cast connecting element

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

  • Suitable for outdoor applications thanks to its high degree of protection IP68 
  • Strong resistance to chemical substances and high mechanical stability thanks to epoxy cast-resin housing
  • Highly flexible and consistent thanks to integrated connection to LI and LD systems
  • Fire resistance of 180 minutes in accordance with IEC 60331
  • Flexible power transmission with little space requirements thanks to the various junction units
  • Feasible fire barrier tested to IEC 61439-6 requirements
  • Fire resistance times of 60, 90 and 120 minutes in accordance with the fire-resistance ratings of ISO 834-1 in line with IEC 61439-6
Technical data
Rated insulation voltage Ui
1000 V AC
Rated operational voltage Ue
1000 V AC
Degree of protection
Rated current lnA
400 A to 6300 A
Rated peak withstand current lpk
Up to 275 kA
Rated short-time withstand current lcw (1 s)
Up to 125 kA
Number of conductors
3 and PEN or 3, N and PE
Fire load
Max. 87 kWh/m
Junction point
Every 1 m on one side
Junction box
On request
Joining system
Bolt terminal block
Conductor material
Aluminium or copper
Housing material
Epoxy resin

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

The LR system is well-suited for use in harsh environments. Irrespective of whether the system is installed in the petrochemical industry, a subway tunnel, or for outdoor networking of building sections: The LR system ensures reliable power transmission – anywhere. 

SIVACON 8PS busbar trunking systems – power for any application

The LR system is part of the comprehensive SIVACON 8PS product family. Busbar trunking systems are the innovative alternative to cables for a wide range of applications and sectors – whether for outdoor installations or the chemical industry.

Brochure "Energy and data successfully put on track"


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. 

Customer Support

  • +4901805242471

    (Charges depend on the provider)

Technical documentation

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

Tender specifications

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

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: 

Online ordering system

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

Siemens Power Academy

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

News & Events

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. 

The Power Engineering Guide

Now available for free downloading

The Power Engineering Guide is a manual for everyone who is involved in the generation, transmission and distribution of electrical energy – from system planning, to implementation and control. Discover the SIVACON 8PS busbar trunking systems in Sections 3.3.7 and 4.5.5.