Olex Varolex vs (N)3GHSSYCY: VFD Cable Screening Differences
Variable Frequency Drive (VFD) cables require specialized screening (shielding) constructions to manage electromagnetic interference (EMI) generated by pulse-width modulation (PWM) switching. The cable’s screening system serves two critical functions: containing radiated electrical noise that could interfere with nearby equipment, and providing a low-impedance path for common-mode currents to return to the drive ground.