Cat 6, Cat 6a, Cat 7 (solid) structured wiring cable

Cat 6, 6a, 7 (solid) structured wiring cable (also known as Category 6, Category 6a and Category 7) is designed for data transmission in computer networks. 

Cat 6 is suitable 10BASE-T/TX & 1000BASE-T/TX. Cat 6a is defined at frequencies up to 500 MHz, twice that of Cat 6. Cat 7 is rated for frequencies of up to 600 MHz as standard, 1000 Mhz versions are available.

The Cat 6, 6a, 7 range includes cables suitable for use in a variety of environments & applications. Versions with stranded conductors (called patch cables) are also available on request.


Construction – Cat 6, 6a, 7
solid 24AWG or 23AWG plain copper conductors
polyethylene (PE) core insulation
cores twisted into pairs
optional screening
optional steel wire armour (SWA)
outer sheath material & colour varies


Technical – Cat 6, 6a, 7
conductor make-up: 1x solid strand between 0.51mm & 0.58mm diameter
screening options: UTP (or U/UTP) = unscreened twisted pairs
FTP (or F/UTP) = overall foil (aluminium/polyester) screen
F/FTP = individual foil screens plus overall foil screen
S/FTP = individual foil screens plus overall tinned copper wire braid
sheath options: PVC (polyvinylchloride) for standard use
LSZH (low smoke zero halogen) for increased fire safety
PE (polyethylene) for external or ducted applications
optional SWA: for direct burial or harsh conditions, PE, PVC or LSZH sheath
(armouring can reduce performance, please check if critical)
bend radius: dependent on type, please check if critical
temperature range: dependent on type, please check if critical
core identification: coloured white & blue, white & orange, white & green,
white & brown (colours may be solid or striped)


A printable PDF specification is available here: Cat 6, Cat 6a, Cat 7 (solid) structured wiring cable.


For lower frequency versions (Cat 5e) return to the Data, Signal, Structured Wiring front page. 

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 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.