Loudspeaker cable - 4 x 2.5 mm² - 13 AWG - EN50399 CPR Euroclass Cca-s1b,d0,a1
Contractor Series
  • 13 AWG (2.5 mm²) thin and dense stranded conductors
  • EN50399 CPR Euroclass Cca-S1b,d0,a1
  • Class 5 IEC 60228 compliant
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The CLS425-Cca series are 4-core installation loudspeaker cables compliant to the Cca standards of the Construction Product Regulation (CPR) regarding fire and flammability resistance in fixed installations, minimizing toxic smokes and providing optimal resistance to spreading fire.

In addition to its outstanding fire properties, the outer jacket of the cabling is smooth and durable for easy installation and pulling. The stranding keeps the cable flexible and easy to handle. The cable can be used in both indoor and outdoor or in humid environments.

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Product variants

Available now

CLS425-CCA/1 100 m wooden reel
CLS425-CCA/3 300 m wooden reel


Product features

Application AV & IT
Series Contractor Series

Physical characteristics

EN50399 CPR Euroclass Cca-s1B,d0,a1
Inner conductor Insulation Material Polyolefin 3 mm (Ø)
Colours Black / Red / Blue / Yellow
Outer jacket Material Polyolefin 9.5 mm (Ø)
Colours Black
Type of cable 4-core loudspeaker cable
Inner conductor Material BC 40 x 0.263 mm (Ø) (OFC)
Section 0.0039 “²
American Wire Gauge 13 AWG
Number of conductors 4
Conductor twisting Yes

Mechanical characteristics

Temperature range Mobile installation - 41 °F till + 176 °F
Fixed installation - 59 °F till + 176 °F
Bending radius Mobile installation 15 x outer diameter
Fixed installation 15 x outer diameter

Electrical characteristics

Max. conductor DC resistance 7.98 (Ω / Km)
Dielectric strength 2 (KV / 1 min. DC)
Rated voltage 500 V


Cable properties


LSHF stands for Low Smoke, Halogen Free. This term refers to Halogen free flame retardant thermoplastic material used as a sheathing compound in cables. In the event of a fire or when exposed to high levels of heat, the chemicals in the jacket removes heat from the flame, whilst the reaction produces water as a by-product to help quench the flame.  As a result, the cable will emit very low levels of smoke, and non-toxic levels of poisonous halogen gasses.

Meter indicator

For ease of installation these bulk cables are provided with an indication on every meter of the cable. This enables installers to have a clear and efficient indication of how many meters they still have available on their reel.


Whenever class B2ca cable is not necessary, class Cca cables provides great fire safety at a reduced cost. Check your local norms to determine where class Cca cable can be used.


Information sheet English

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