SY NR/OZ armoured PVC control cable, no’d

SY NR/OZ armoured control cable has number coded cores and a bedded galvanised steel wire braid (GSWB) which provides excellent protection against mechanical damage.

These flexible and versatile SY NR/OZ cables are used for connecting, measuring, checking and control applications.

Suitable for installation in dry and moist rooms, outdoor installation not recommended.

If protection against mechanical (physical) damage is not required please see our range of YY control cables. If protection against electrical interference is required please see our range of CY screened control cables.


Construction – SY NR/OZ
stranded plain copper conductors
polyvinylchloride (PVC) core insulation
galvanised steel wire braid (GSWB) armour
clear PVC outer sheath


Technical – SY NR/OZ
conductor make-up: 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, 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
max. +70°C at conductor
construction: generally according to BS6500 & VDE0250
flame retardant:  according to IEC 60332-1
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: SY NR/OZ armoured control cable, number coded cores.


A similar cable with black low smoke zero halogen (LSZH) sheathing can be found here: SY LSZH

For alternative constructions (colours, braiding, etc.) return to the PVC 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.