PUR EF YY high-flex control cable (unscreened)

PUR EF YY high-flex control cable (unscreened) is designed for use in free movement without tensile stress and in drag-chains etc.

These tough highly flexible PUR EF YY cables work well in control applications where the cable is constantly moving, particularily in arduous environments. The PUR sheath provides increased mechanical and chemical resistance when compared to standard PVC.  

Suitable for installation indoors or outdoors, in dry, moist or wet areas and where exposed to harsh mechanical strain or dragged over sharp/rough surfaces.

Highly flexible control cables are built along the same lines as YY/CY control cables but with finer stranded conductors. If there is need for protection against electrical interference please see our range of EF CY cables.


Construction – PUR EF YY
stranded plain copper conductors
polyvinylchloride (PVC) or polypropylene (PP) core insulation
cores twisted in layers
textile wrapping
grey polyurethane (PUR) outer sheath


Technical – PUR EF YY
conductor make-up: class 6 (extra-fine stranded), see Stranding/Resistance page
bend radius: 4 x overall diameter (O/D) fixed, 7.5 x O.D flexing
voltage rating: 300/500V operating, 4000V test
current rating: as per YY, CY or SY style cables chart, see Current Ratings page
insulation resistance: 20 MΩ x km
temperature range: -5°C to +70°C flexible, -40°C to +80°C static
flame retardant: according to IEC 60332-1-2
core identification: OZ, usually 2 core = numbered black cores without earth (green/yellow)
JZ, usually 3+ cores = numbered black cores with earth (inc. in core count)


A printable PDF specification is available here: PUR EF YY high-flex control cable (unscreened).


Standard flexible versions can be found here: PUR JZ-OZ 

For alternative constructions (smaller colour coded cores, PVC sheath, screened, etc.) return to the Highly Flexible Control and Data front page

These cables are often available in low smoke zero halogen versions, designed for increased safety in the case of fire. Please contact us for more information. 


All measurements should be considered nominal and images for illustration purposes only. Although Central Cables Ltd has made every reasonable effort to ensure its accuracy, the information contained herein is subject to error or omission and to change without notice. In no event will Central Cables Ltd be liable for any damages whatsoever, arising in connection with the information described.