Keep Your Motors Running with VFD Cables
Low-voltage variable frequency drives (VFDs) are designed to cut costs by improving the energy efficiency of your operations and extending the life of your motor. However, this cost-effectiveness is diminished if your drives are constantly tripping or causing premature motor failure. Using THHN cables in VFD applications can result in high levels of motor shaft current spikes and electromagnetic interference (EMI). Current spikes can create bearing fluting and eventually cause motor failure. High levels of radiated noise from EMI can negatively affect nearby systems and damage sensitive electronics. Southwire’s VFD cables and termination accessories are specially designed to reduce electromagnetic interference (EMI) and control current levels, prolonging the life of your drives and motors and protecting your operational systems.
VFD Cable Options
- Reduced Diameter Flexible VFD
- Standard Flexible VFD Cable
- VFD Servo Cable (Plus Signal Pair for Brake Control)
- Industrial Grade Tape Shield VFD Cable
- VFD Armored Cable (Up to 15 kV)
VFD Cable Gland
Specifically designed to properly terminate a VFD cable’s overall shield, Southwire’s VFD cable gland can be used on copper tape and copper braid/aluminum foil shield VFD cables. Ensure you have correctly terminated cables at both the drive and motor ends to prevent premature motor failure and protect nearby communication and control equipment from uncontrolled common-mode currents.
VFD Shield Termination Kit
This kit includes conducting copper foil tape, a flexible tinned copper braid bonding strap with attached lug and a constant force spring. With Southwire’s VFD Shield Termination Kit, you can easily terminate copper tape and copper braid/aluminum foil shield VFD cables when the cable is installed in conduit or in conjunction with cable glands.
Questions
Contact your McNaughton-McKay account manager or visit your local branch to order your complete VFD cabling solution.