VFD stands for Variable Frequency Drive. A VFD panel, also known as a Variable Frequency Drive panel or VFD control panel, is an electrical panel used to house and control Variable Frequency Drives.

Variable Frequency Drives (VFDs) are devices used in motor control systems to vary the frequency and voltage supplied to an electric motor. By altering the frequency and voltage, VFDs can control the speed, torque, and direction of an AC motor.