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 (valid from 0.50 mm²)
  • (UL-standard for American market / cUL-standard for canadian market)

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 22 AWG 20 AWG 18 AWG 16 AWG 14
Strands x diameter Richtwerte 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 0.80 1.0 1.3 1.45 1.85
Wall thickness desired mm 0.85 0.85 0.85 0.85 0.85
Wall thickness min. mm 0.686 0.686 0.686 0.686 0.686
Outer diameter mm 2.50 ± 0.10 2.70 ± 0.10 3.00 ± 0.10 3.15 ± 0.20 3.55 ± 0.20
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 V 600 UL 3289 / cUL 1503
Testing voltage V 3500 UL 3289 / cUL 1503
Property Value
Insulation Polyolefin-copolymer electron-beam cross linked
Resistance against Resistant against common impregnants