SynCon® – Connecting Cables & Transformer Terminals Single Core Conductor BETAtherm® 155 UL/cUL (AWG)

BETAtherm® 155 UL/cUL is a flexible low-voltage cable with UL recognition, consisting of a tinned copper stranded wire and insulated with coloured electron-beam crosslinked polyolefine copolymer.

Due to its electron-beam cross-linked insulation, BETAtherm® 155 UL/(AWG) achieves a special thermal resistance required for Class F. This results in excellent thermal resistance. However, it cannot even be melted at elevated temperatures and has to be skinned during processing. Skinning is simple and also possible at machines.
BETAtherm® cables are resistant to all common insulating varnishes. They are flame retardant.

Download datasheet


BETAtherm® 155 UL/cUL (AWG) is suitable for the internal wiring of electric machines, lamps, heating appliances, as well as for application in apparatus, mechanical and plant  engineering. Due to the high thermal load capacity, it might be possible to reduce the conductor cross section and, therefore, save space and reduce the weight.


  • Thermal class F (155 °C) according to IEC (UL Rating 150 °C)
  • UL 3289 and CSA cUL 1503
  • (UL-standard for American market / cUL-standard for canadian market)
  • RoHS compliant according to 2011/65 EC

Delivery forms

AWG dimensions:
AWG 14-24:  300 m rings

Other cross sections available on request.


Tinned copper wire VDE 0295/ IEC 60228 class 5.

The dimensions specified in the technical datasheet are regarded as standard values. The actual cross sections may vary. The cables are manufactured according to European standards with a AMG conductor cross section, AWG sizes are approximate values and viceversa. Always observe relevant standards valid for divergent operating conditions when laying for greater limit current loads.


Green-yellow, black, light blue, red, yellow, green.
Brown, white, grey, violet, orange, and 2-coloured on request.

Technical data

Dimension AWG
Property Unit of measure            
Nominal cross section    AWG 24 AWG 22 AWG 20 AWG 18 AWG 16 AWG 14
Strands x diameter  ref. value  19 x 0.127 19 x 0.160 19 x 0.203 19 x 0.254 19 x 0.297 19 x 0.374
Cu Litz nom. diameter  mm  0.66 0.80 1.0 1.3 1.45 1.85
Wall thickness desired  mm  0.85 0.85 0.85 0.85 0.85 0.85
Wall thickness min.  mm  0.686 0.686 0.686 0.686 0.686 0.686
Outer diameter  mm  2.36 ± 0.10 2.50 ± 0.10 2.70 ± 0.10 3.00 ± 0.10 3.15 ± 0.10 3.55 ± 0.10
Property Value 
Bend radius  4 x outer-Ø
Soldering resistance  very good
Property Unit of measure Value  Test method 
Thermal class    F  
Temperature range fixed application  °C  -55 to +150 UL 3289 /cUL 1503
Temperature range short circuit  °C  max. +280  
Thermal resistance    155° C/5000 h IEC 60216-2
Burning behaviour    flame retardent EN IEC 60332-1-2
Property Unit of measure Value  Test method 
Rated voltage  600 UL 3289 / cUL 1503
Testing voltage  5000 UL 3289 / cUL 1503
Property Value 
Insulation  Polyolefin-copolymer electron-beam cross linked
Resistance against  Resistant against common impregnants