Nexans: DriveRx VFD, Variable Frequency Drive Cable

Nexans: DriveRx VFD, Variable Frequency Drive Cable

February 21, 2025

Nexans DriveRx VFD Delivers Performance Focused VFD Cable

Modern drive technology has enhanced the performance of industrial motors. Decreased switching time of the electronics in Variable Frequency, Pulse Width Modulation or Vector drives, means specialized cables connecting the drive unit and the motor become critical to the performance of these systems. Nexans DriveRx cable is specially constructed to meet the challenges of modern adjustable speed drive systems.

Drive manufacturers recommend the Nexans cable construction, with the corrugated continuous aluminum sheath and 3 bonding conductors.

The three-conductor construction virtually eliminates magnetic fields outside of the cable, so induced voltage from one power cable to another or cross talk to control/instrumentation cables is also reduced. The continuous aluminum sheath (as opposed to interlocked armour) acts as an effective shield for high frequency “noise” that may still be produced and could affect adjacent control and instrumentation cables. This sheath, in combination with the three grounding conductors, also acts as a long-term low resistance path to the ground. This will eliminate standing voltages that may be created on the motor frame and also reduce bearing currents due to this standing voltage or to common mode voltage.

Application

Nexans DriveRx cable is recommended for industrial, commercial and utility installations including outdoor wet locations. DriveRx can be installed in tray, conduit or direct buried, strapped to walls or surface mounted. Although DriveRx can be installed in tray or conduit, mechanical protection is NOT required, as DriveRx is impact and crush resistant. Cable temperature rating is 90ºC to -40ºC. DriveRx is flame, oil and UV resistant. PVC jacket rated FT4 and AG14. Certification to standard C22.2 No. 174 allows installation in hazardous locations. LEAD FREE and RoHS compliant.

Limited Smoke Zero Halogen – CSA rated ST1 per CSA 22.2 No. 2556 upon request. Meets the FT4 flame spread test.

Special Handling Considerations – Bending Radius

Nexans DriveRx cables are easily installed and trained into their final position. The aluminum sheath is corrugated to allow easy bending of the cable, but it is not designed to withstand repeated flexing or excessive bending. During installation or pulling of the cable, the minimum bending radius should be 14x the aluminum sheath diameter. For final training, the minimum bending radius should be 9x the aluminum sheath diameter.

Construction Characteristics

  • Conductor Material: Copper
  • Insulation: XLPE
  • Insulation Colour: Black

Electrical Characteristics

  • Maximum Operating Voltage: 1 kV

Usage Characteristics

  • Maximum Operating Temperature: 90 °C
  • Minimum Installation Temperature: -40 °C

Source

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