Industrial 50373-0 4V008A-H Variable Frequency Drive

The Spindel Industrial 50373-0 4V008A-H is a reconditioned three-phase 460 VAC variable frequency drive designed to precisely control speed and torque of industrial AC motors. It delivers 8.5 A output with adjustable frequency and variable voltage control, includes soft-start to reduce inrush and mechanical stress, and is suitable for pumps, fans, conveyors, and machine tools. Protected for industrial use with overcurrent, overvoltage, undervoltage, and thermal protection, it can be panel-mounted and cooled by forced air or a heat sink depending on configuration in indoor environments. Common replacements reference the same family, such as Allen-Bradley PowerFlex 40, Siemens MICROMASTER 420, and ABB ACS355.