L4669Hf - LEGRAND 3440 Technical Sheet

Halogen-free (white) AV SCS/BUS cable
Description
This white SCS-BUS cable has been purposely designed and built for the installation of
systems in rooms with a high risk of fire. Produced without halogens, the cable will burn
without releasing toxic substances or heavy, dense smoke, significantly increasing the
safety level.
This cable is used for the distribution of the power supplies and the operating signals to
all system BUS devices.
It consists of a white external sheath and two twisted conductors, of cross-section 0.50
mm , brown and brown/white in colour. It is sold in coils of 200 m.
2
It is therefore ideal for use in:
- Free way inside trunking, walkways and conduits
- Inside walls via suitable conduits
- Underground via suitable conduits.
The white SCS-BUS cable is suitable for underground installation.
Technical data
Insulation voltage: 450/750 V
Can be buried: YES protected by suitable conduits
External sheath colour: white (RAL 9010)
External sheath diameter: 5.2 +/- 0.1 mm
External sheath thickness: 0.8 mm
External sheath material: LDFRPE Thermoplastic quality M1, hardness 95 A Shore
Number of internal conductors: 2 unshielded twisted flexible conductors with sheath
Colour of internal conductors: brown – brown/white
Sheath thickness of internal conductors: 0.45 mm
Sheath material of internal conductors: LDPE Polyethylene
Conductor material: red electrolytic copper
Conductor section: 0.52 mm (7 x 0.308 mm2)
2
Operating temperature: (-15) – (+70) °C
Maximum short circuit temperature: 150°C
Coil length: 200 m
Standards, Certifications, Marks
Reference standards: The cable complies with the tests required by the following
regulations: UL13, UL1581, EN60811, EN50289, EN50290, EN60228, EN50265-2-1,
EN50395, EN50396 as described in document IMQ CPT 062.
Marks obtained:
Installation notes
Cable burying
The SCS BUS 336904 cable can be buried (protected by suitable conduits) along with
other signal cables if the voltages are < 50 V.
It is absolutely forbidden to run the cable 336904 together with power cables, where the
voltages are > 50 V. Failure to comply with the installation rules authorises BTicino to
disclaim all liability for the operation of existing plants.
Installation with other cables
Although the white cable constructively ensures the electrical insulation necessary
for installation with 450/750 V cable systems, there is no assurance of immunity from
electromagnetic interference that could occur if the cable were to be laid in the same
conduits through which the power cables run.
It is highly recommended to install the SCS-BUS white cable and the power cables in
different conduits.
MQ00522-c-EN 22/11/2013

L4669HF

181