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chainflex® high-end bus cable: CFBUS immediately available with 600V UL certification

With CFBUS, all standard bus types such as Ethernet, Profinet or CC-Link can now be guided together with cables with a higher voltage

The new cables with 600V UL approval now enable the user to lay his bus cables on a platform directly next to cables with a higher voltage level (such as drive cables), offering tangible savings potential.  

Order directly now

UL means "Underwriters Laboratories" and is an independent organisation in the USA. This organisation tests various products for their safety.  With regard to cables, UL stipulates that all cables with different voltage classes in one cable guide must always be mechanically separated from one another. The new high-end 600V bus cables from chainflex® eliminate the need for this significant additional cost and effort.   

Tech up

Tech up

  • UL voltage doubled to 600V
  • Laid directly next to cables with a higher voltage level possible
  • Reliably design cable service life online

Cost down

Cost down

  • Additional separating elements between the cables in the e-chain® no longer necessary
  • 36-month guarantee



  • Tested in the largest test laboratory (3,800 m²) , the largest laboratory of its kind for cables in moving applications
  •  chainflex® Test no. 3089 add link



  • Reduced material use due to special TPE outer jacket

Bus cables with 600V UL approval

Or: Why are there different voltages at UL?

The safety requirements for fire protection in the country of origin of UL, the USA, are much stricter than ours. Only appropriately tested products are awarded the UL certification mark. For energy supply systems, UL stipulates that all cables with different voltage classes and lying side by side, e.g. in a cable rack or energy chain, must always be mechanically separated from each other. This can be achieved by using appropriate sheet metal. Of course, meeting these standards involves a lot of effort and above all costs.  Using the example of the cable rack, one can say: "If all cables have the same voltage level, the cables can be laid side by side without this mechanical separation." This makes processing easier and saves enormous costs.
The different voltage classifications of UL are decisive here because now a cable with the higher style can be laid directly next to the other cables (such as drive cables).

CF bus cable with 600V UL

The chainflex test laboratory in Cologne was visited several times by UL experts

UL verified: 36-month chainflex guarantee and service life calculation based on 2 million test cycles per year

For many years, the technical requirements for energy chain systems have been increasing more and more. Travels have become longer, movements quicker and bend radii smaller.  Core ruptures, jacket abrasion and corkscrew are the result. igus has risen to the challenge and developed cables that can withstand high mechanical stress chainflex cables.
As a consistent continuation of this technological claim, igus is, in 2020, the first German company to have its brand promise for chainflex cables validated by an external body. In a complex certification process, the US institute "Underwriters Laboratories" confirmed the accuracy of the statement "igus® 36-month chainflex cable guarantee and service life calculator based on 2 billion test cycles per year". This makes igus the first in Europe to have the veracity of its advertising statement confirmed by an internationally recognised testing institution.

Machine tools brochure

Machine tools with igus

The motion plastics in use in machine tools: in our new igus magazine for the machine tool industry, experience motion plastics products for your modern machine tool, such as the new chainflex bus cables with 600V UL approval and many other areas to reduce costs and improve technology.

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Harnessed UL bus cables

readycable overview

Offering around 4,600 harnessed motor, servo, signal and encoder cables suitable for 24 manufacturer standards, igus is the world's No. 1 when it comes to harnessed cables for use in energy chains. Providing 7 different cable qualities, the range always offers the most cost-effective drive cable that is guaranteed to work.

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CF price check for bus cables

CF price check for bus cables

Bus is the abbreviation for "Binary Unit System" and describes a system that is responsible for the data transmission between individual participants within a network. We are happy to take responsibility along with you and determine your individual savings potential for bus cables with the free chainflex Price Check - always with UL approval and 36-month guarantee.

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