CY LSZH NR/OZ screened grey control cable

CY LSZH NR/OZ screened grey control cable is used for connecting, measuring, checking and control applications where there is a need for electrical screening. The tinned copper wire braid (TCWB) provides interference-free data and signal transmission.

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

These CY LSZH cables are designed for increased safety in the case of fire due to the virtual elimination of toxic fumes if burnt. Pronounced advantages when compared to a PVC control cable: 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 – CY LSZH
stranded plain copper conductors
halogen free core insulation
cores twisted into layers & polyester taped
tinned copper wire braid (TCWB) screen
grey low smoke zero halogen (LSZH) sheath


Technical – CY LSZH
conductor stranding: class 5 (flexible fine stranded), see Stranding/Resistance page
bend radius: 6 x overall diameter (O/D) fixed, 20 x O/D flexing
voltage rating: 300/500V operating, 3000V test
current rating: as per YY, CY or SY style cables chart, see Current Ratings page
temperature range: -25°C to +70°C flexible, -40°C to +80°C static
construction: generally according to BS6500 & VDE0250
flame retardant: according to EN 60332-1-2 (EN-50265-1), IEC 60332-1
smoke emission: according to EN 50268-1(-2), IEC 61034-1(-2), EN 61034-2
acid gas emission: according to EN 50267, IEC 60754-1, EN 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: CY LSZH NR/OZ screened grey control cable.


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

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

Abraision resistant version with polyurethane sheath: PUR-CY


For armoured or unbraided 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.