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Harnessed Single Pair Ethernet (SPE) for moving applications with a guarantee of up to 36 months

Simple and secure data communication to your system

Digitalisation and data exchange have become indispensable in modern production. With only one core pair in the Single Pair Ethernet, igus offers you the possibility of a future-proof data exchange. Transmission rates of up to 1GBit/s are easily possible, and the minimisation of the cable to only one pair of cores offers you further advantages. Compared to the CAT5e cable (CFBUS.PUR.045) , the 25% thinner cable allows you to save a lot of space in confined installation spaces, which has a significant influence on dynamic movement sequences in the machinery.

The newly developed, industrial-grade plug-in connectors offer a large-area shield connection and make a strong contribution to electromagnetic compatibility (EMC). igus uses a highly abrasion-resistant, notch-resistant PUR jacket and plug-in connectors with tough metallic interlocks. With the Single Pair Ethernet (SPE) cables harnessed, tested and certified by igus, you can connect sensors reliably and sustainably.

Tech up

Tech up

  • Energy chain-compatible Ethernet communication for the entire plant
  • 25% thinner than CAT5e, with the same data transmission rate
Cost down

Cost down

  • 25% smaller bend radius compared to CFBUS.PUR.045
  • Costs are 20% lower than those of a CAT5e cable (CFBUS.PUR.045)
  • Time saving as it is ready to connect


  • 100% digital and logic test incl. transmission speed (test seal and protocol)
  • Tested in the largest test laboratory of its kind for cables in moving applications
  • Member of the SPE Network


  • Future-proof data communication
  • Calculate guaranteed service life of the cable online

Product Manager Markus Hüffel will give a short introduction

Finally, the harnessed Single Pair Ethernet cable is available in addition to the version sold by the metre. Cable length and type of connector can be chosen freely, with no minimum order quantity.
SPE logo

The SPE Industrial Partner Network

igus continues to advance SPE together with strong partners

Single Pair Ethernet is the infrastructure foundation that makes IIoT and Industry 4.0 possible. In order to promote Single Pair Ethernet technology for the rapidly growing IIoT market, igus is participating in the SPE Industrial Partner Networks with other strong partners such as HARTING or TE Connectivity.  
For the reliable establishment of the entire future SPE ecosystem, standards for transmission protocols, cabling and device components are also jointly developed and adopted and published in IEEE 802.3 and IEC SC46C.  
In this way, the new cable could also be constructed in partnership for the T1 connector interface. As a result, the durable shield has reliable transference to the connector, ensuring optimal high electromagnetic compatibility (EMC). The combination of chainflex cable and SPE connector is extremely robust: igus uses a highly abrasion-resistant and notch-resistant PUR jacket, and the connector has tough metal latches with a PCB socket.

All details of the harnessed SPE cable at a glance

Cable qualityPart No.Number of cores and conductor nominal cross section     Outer diameterBend radius 
           [mm²]     [mm] 
      PURCAT9471001        (2x0.15)C          5.5    12.5xd order

Everything about the SPE (Single Pair Ethernet) cable

The key to industrial automation, the Industrial Internet of Things (IIoT)

Single Pair Ethernet technically describes the transmission of Ethernet (1000Base-T1) via only two copper wires and enables both data transmission via Ethernet and simultaneous power supply (PoDL). This technological leap leads to a reduction in the diameter by approx. 25% compared to an ordinary Ethernet cable. This white paper gives an overview of the current state of development of SPE and shows the opportunities the new transmission technology opens up for the industry by significantly reducing the installation space as well as the associated weight reduction:

36-month chainflex guarantee

chainflex guarantee In addition to the SPE cables, we give a 36-month guarantee on all our chainflex cables in good faith, because with over 30 years of experience in our 3,800 m² large test laboratory and 700 parallel running test trials, we can make reliable predictions about the service life of our cables.
Information here

Online shop for bus cables

Bus cable In addition to SPE, chainflex bus cables are also available for all other industrial bus systems such as Profinet, Ethernet, CAN bus or CC-Link. Depending on the cable family, they can be used for torsion resistance, tight radii, or particularly long travels and high speeds.
Buy here

Ready-to-connect cables

readycable portfolio 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. With 7 cable qualities, we always offer the most cost-effective drive cable that works.
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I look forward to answering your questions

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Monday to Friday from 7 am - 8 pm.
Saturdays from 8 am- 12 pm.



The terms "igus", "Apiro", "chainflex", "CFRIP", "conprotect", "CTD", "drylin", "dry-tech", "dryspin", "easy chain", "e-chain", "e-chain systems", "e-ketten", "e-kettensysteme", "e-skin", "e-spool", "flizz", "ibow", "igear", "iglidur", "igubal", "igutex", "kineKIT", "manus", "motion plastics", "pikchain", "readychain", "readycable", "ReBeL", "speedigus", "triflex", "robolink", "xirodur", and "xiros" are legally protected trademarks of the igus® GmbH/ Cologne in the Federal Republic of Germany and where applicable in some foreign countries.

igus® GmbH points out that it does not sell any products of the companies Allen Bradley, B&R, Baumüller, Beckhoff, Lahr, Control Techniques, Danaher Motion, ELAU, FAGOR, FANUC, Festo, Heidenhain, Jetter, Lenze, LinMot, LTi DRiVES, Mitsubishi, NUM,Parker, Bosch Rexroth, SEW, Siemens, Stöber and all other drive manufacturers mention on this website. The products offered by igus® are those of igus® GmbH