EV Cables

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Nomenclature of Automotive Cables
According to DIN 76722
In a Simplified manner the type designations of the automotive Cables according to DIN 76722 provide information about
Types of automotive cables
Conductor insulation and Sheathing materials
Conductor designs and coatings
Screening measures for non-extruded coatings
Special design features
Numbers of cores, conductor nominal cross sections, for resistance cables conductor resistance / conductor length
The type designations of the automotive cables ‘accoriding to DIN 76722 are informative but non-binding due to the simpfied
structure of the coding key. the cable designation are not clear. For example for the cable designation FLR31Y11Y 2 x 05mm
several cable structures with a variety of external diameter and core colours may be permissible the coding key is read from
left ti right just as a cable is constructed form inside to outside.
Type of Automotive Cable
Insulation and sheathing materials
Designation
Designation
Meaning
Meaning
2G
3G
4G
5G
53G
NG
Y
2Y
4Y
5Y
6Y
7Y
9Y
10Y
11Y
12Y
13Y
31Y
51Y
52Y
91Y
NY
R
U
S
SIR (Silicon rubber)
EPR (Ethylene/propylene rubber, EPDM, EPM)
EVA (Ethylene/vinyl acetate)
CR (chloroprene rubber)
PE-C (chlorinated polyethylene)
Non-standardised elastomers
PVC (polyvinyl chloride)
PE (polyethylene)
PA (polyamide)
PTFE (polytetrafluoroethylene)
FEP (tetrafluoroethylene/hexafluorpropylene)
ETFE (ethylene/tertrafluorethylene)
PP (polypropylene)
PVDF (polyvinyl idenfluoride)
TPE-U (thermoplastic ployurethane, PUR)
PBT (polybutylene terephthalate)
TPE-E (thermoplastic polyester elastomer)
TPE-S (thermoplasticstyrene block copolymer)
PFA (perfluoroalkoxy alkane)
MFA (perfluoroalkoxy-methyl vinyl ether copolymer)
TPE-O (thermoplastic polyolefine elastomer)
Non- standardised thermoplastic and TPE
Reduced wall thickness thin wall according to ISO 6722
Ultra- reduced wall thickness ultra thin wall according to ISO 6722
Special wall thickness
FL
Vehicle cable
FHL
Vehicle high- voltage cable
Voltage class A according to ISO 6469-3
nominal voltage max. 30 voltage AC/ 60 Volts DC
Voltage class B according to ISO 6469-3
nominal voltage Max. 1000 Volts AC / 1,500 Volts DC
Conductor Materials
Designation Meaning
No designation
Al
M
Copper
Aluminum
Other conductor materials
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All information given are in good faith.Siechem's liability is only to replace the defective portion of cables provided the same is mutually established as manufacturing defects within the guarantee period as agreed in writing and
Siechem shall not be liable for any compensation or damages. Siechem reserves the right to revise any of the above specifications without prior intimation. Subject to Chennai Jurisdiction.