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Cordones Flexibles Tipo SPT

Flexible Cords SPT Type

300 V / 60 °C

General description

Cord manufactured with two parallel conductors (soft drawn copper cords), sizes from 0,324 to 5,260 mm2 (22 to 10 AWG), with polyvinyl chloride individual insulation and assembled with a strip of the same material.
SPT flexible cords can have a third conductor in the center, to act as physical ground, and individually insulated with green polyvinyl chloride (PVC).
The differences in the SPT types: 0, 1, 2 and 3, are the ranges in size and the insulation thicknesses (see tables).


  • Viakons flexible cords SPT-0, SPT-1, SPT-2 and SPT-3 types meet the following specifications:
  • NOM-063-SCFI Electrical products - conductors - safety requirements.
  • NMX-J-102-ANCE Flexible cords SPT type with thermoplastic insulation based on polyvinyl chloride for installations of up to 300 V.
  • UL 62 Flexible cord and Fixture Wire.
  • Note: For UL approved products, contact out Engineering Department.


Main applications

  • The flexible cords SPT-1 and SPT-2 types are designed to supply electrical power at a low voltage for electrical household appliances such as fans, lamps, stereos, televisions, radios, mixers, and extensions cords.
  • The SPT-3 type can be used for wreaths, extensions cords, and those with two ground conductors, can be used to supply energy to evaporative coolers or window air conditioners.
  • The SPT-0 type 0,324 and the SPT-1 type, 0,519 mm² (22 and 20 AWG respectively) are only used for supplying energy to limited power electrical devices.


  • Maximum operation voltage: 300 V.
  • Maximum operation temperature in the conductor: 60°C
  • Soft copper flexible conductors, flexible cord construction class K for sizes from 0,324 to 0,824 mm2 (22 to 18 AWG) and flexible cord class J for sizes from 1,307 to 5,260 mm2 (16 to 10 AWG).
  • No-flame propagation.
  • Can be manufactured with oil resistance properties (at a maximum operation temperature of 60°C).
  • White, brown or gray outer jacket.
  • Packed in 100 meter coils.


  • Easy handling and installation since conductors are made of soft copper flexible cords.
  • Improves safety in the event of fire in one of the installations, since it meets the no-fire propagation test (NMX-J-093).
  • Suitable for installations in moist locations.