Letter codes defining cables according to the European system CENELEC

Norm Reference

H – Harmonised Cable
A – National approved cable
N – National cable

Rated Voltage

01 – from 100 / 100 V to 300 / 300 V
03 – 300 / 300 V
05 – 300 / 500 V
07 – 450 / 750 V
1 – 600 / 1000 V

Insulation and Sheath

B – EPR rubber T. 90°C
E – Polyethylene (PE)
G – EVA Rubber T. 110°C
M – Mineral
N – Polychloroprene or equivalent
N2 – Polychloroprene or equivalent for welding cable
N4 – Chlorosulphonated Polyethylene (CSP) or equivalent
Q – PUR
R – Standard EPR rubber T.60°C
S – Silicone Rubber
T – Textile yarn braid
J – Glass yarn braid
V – Polyvinylchloride (PVC) T.70°C
V2 – Polyvinylchloride (PVC) T.90°C
V3 – Low temperature Polyvinylchloride (PVC)
V4 – Cross-linked Polyvinylchloride (XLPE)
V5 – Oil resisting PVC compound
X – Cross-linked Polyethylene (XLPE)
Z – Low smoke and zero halogen elastomeric compound
Z1 – Low smoke and zero halogen thermoplastic compound

Metal Covering

A7 – Aluminum screen
C – Concentric copper conductors
C4 – Multi core copper braid screen
C5 – Single core copper screen
C7 – Tape, wire or flat wire (copper) screen

Special Constructions

H – Divisible flat cables
H2 – Not divisible flat cables
H6 – 3 or more flat cables
H7 – Not divisible double insulated cable
H8 – Spiral cables

Conductor Flexibility

D – Welding cable flexible conductor
E – Very flexible conductor for welding cable
F – Flexible conductor for mobile applications class 5
H – Very flexible conductor class 6
K – Flexible conductor for fixed applications class 5
R – Solid stranded conductor class 2
U – Solid single conductor class 1