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Current Location: HomeWire & CablePower Cables & Portable CordClass K Welding Cable
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Class K Welding Cable

More Power Cables & Portable Cord Options

  • SJT Cable and SVT Cable
  • Type W Portable Power Cable (2000 V)
  • Thermostat Wire
  • SPT Lamp Cord
  • Service Cord
  • SOOW Cord
  • TelcoFlex Central Office Power Cable
  • STO Cable and STOW Cable
  • SEOW Cable
  • SO Cord
  • DLO-Diesel Locomotive Cable
  • Type G Cable & Type G-GC Cable
  • Stage Lighting Cable
  • Low Voltage Landscape Lighting Cable
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  • Sprinkler Wire
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  • Harmonized Heavy Duty Neoprene Cordage
  • GTO-15 Neon Sign Wire
  • H07RN-F Cable - Harmonized Heavy Duty Neoprene Cordage
  • SJEOOW Cable
  • Class M Welding Cable
  • SurpreFlex Ultra-Flexible Power Distribution Cable

Class K Welding Cable

Our InfiniteFlex line of welding cables includes the Class K welding cable, also known as the standard welding cable. It is manufactured from 30 AWG copper strands but not UL or CSA approved like some of the other classes of welding cables. The cables come in black and red EPDM jackets. Although, there are other colors available upon customer request. Class K welding cable characteristics include copper stranded conductor as well as rubber insulation of the cable, this provides satisfactory flexibility. Class K welding Cables are used mainly for secondary voltage resistance welding leads as well as for power supply applications that do not exceed 600 volts. This includes automotive starters and battery grounds. 

Allied Wire & Cable also stocks Class M welding cable which can be found here. 

PDF of RG142 Specs Download the printable DLO/Welding Cable datasheet from Allied Wire & Cable

  • Alpha Welding Cable
  • General Cable Carol Brand Carolprene® Welding Cable (90°C)
  • General Cable Carol Brand Carolprene® Welding Cable (105°C)

Part Number AWG SizeConductor StrandingNom. Insul. Thick. (in)Nom. O.D. (in)Approx LBS/MFT
WELD-6Buy Now 6 260/30 0.065 0.308 109.00
WELD-4Buy Now 4 364/30 0.060 0.343 147.00
WELD-2Buy Now 2 624/30 0.070 0.418 265.00
WELD-1Buy Now 1 767/30 0.084 0.488 330.00
WELD-1/0Buy Now 1/0 975/30 0.085 0.533 372.00
WELD-2/0Buy Now 2/0 1196/30 0.084 0.568 446.00
WELD-3/0Buy Now 3/0 1547/30 0.093 0.618 620.00
WELD-4/0Buy Now 4/0 2052/30 0.083 0.6950 790.00
WELD-250Buy Now 250 2527/30 0.148 0.810 1110.00
WELD-350Buy Now 350 3458/30 0.137 0.9600 1310.00
WELD-500Buy Now 500 4921/30 0.160 1.2000 1960.00
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Our Class K Welding Cable Specs:
InfinitiFlex™ Welding Cable
EPDM Insulated
Flexible Welding Cable Sizes 6 AWG - 500 KCMIL
600 Volt -50°C to 105°C

Class K Welding Cable Construction:

  • Conductor: Fully annealed stranded bare copper, Class K, per ASTM B-172.
  • Jacket: Black or Red Ethylene Propylene Diene Monomer Rubber (EPDM)
  • Additional Jacket Colors: Weld cables are also available in orange, yellow, blue or green

Class K Welding Cable Applications:

  • Secondary voltage resistance welding leads
  • Power supply applications not exceeding 600 volts A.C.
  • Battery Cable
  • Welding

Class K Welding Cable Features:

  • Resistant to cuts, tears, and abrasion in addition to moisture.
  • Our Welding cables offer good color retention along with great flexibility.

Class K Welding Cable Options:

  • Zero Halogen EP Jacket
  • CSA Approved Welding Cable
  • UL Rated Welding Cable (Class M stranding)
    • UL Rated CPE Weld Cable 90°C/600V
    • Orange Jacket Premium Grade, Extra Hard Usage, UL-Rated

Featuring stranded bare copper and available in sizes 6 AWG up to 500 MCM, InfinitiFlex welding cable is rated to 600V rms max and suitable for use from -50°C to 105°C. Our InfinitiFlex weld cable is RoHS compliant, made in the USA and is one of the few welding cables that feature a UL safety rating. Visit our Welding Cable FAQ for more information.

InfinitiFlex is a registered trademark of Allied Wire & Cable.

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