YY LSZH NR/OZ flexible grey control cable

YY LSZH NR/OZ flexible grey control cable is designed for connecting, measuring, checking and control applications where there is no need armour or electrical screening.

Suitable for use indoors in dry or moist areas. May be available with UV stabilized sheath for external installations.

These YY LSZH cables ensure increased safety in the case of fire due to the virtual elimination of toxic fumes if burnt. Pronounced advantages when compared to PVC cabling: low fire load, low smoke emission, reduced fire propagation.

Note: low smoke zero halogen / halogen free (LSZH, LSOH, LSHF, OHLS) should not be confused with LSF (low smoke and fume), an in-depth explanation is shown on our Customer Support page.


Construction – YY LSZH NR/OZ
stranded plain copper conductors
halogen free core insulation
cores twisted into layers
grey low smoke zero halogen (LSZH) sheath


Technical – YY LSZH NR/OZ
conductor stranding: class 5 (flexible fine stranded), see Stranding/Resistance page
bend radius: 4 x overall diameter (O/D) fixed, 15 x O/D flexing
voltage rating: 300/500V operating, 2000V test
current rating: as per YY, CY or SY style cables chart, see Current Ratings page
temperature range: -5°C to +70°C flexible, -40°C to +80°C static
construction: generally according to BS6500 & VDE0250
flame retardant: according to IEC 60332-1-3, VDE 0482-332-1-1
smoke emission: according to IEC 61034-1 & 61034-2, BS 7622 part 1 & 2
acid gas emission: according to IEC 60754-1 & 60754-2
core identification: OZ, usually 2 core = numbered black cores without earth (green/yellow)
  NR, usually 3+ cores = numbered black cores with earth (inc. in core count)


A printable PDF specification is available here: YY LSZH NR/OZ flexible grey control cable.


Similar cables can be found elsewhere on our site as listed below.

Standard version with polyvinylchloride (PVC) sheath: YY NR/OZ grey

Abraision resistant version with polyurethane sheath: PUR-JZ/PUR-OZ grey


For screened and armoured versions return to the LSZH Control Flex front page.


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.