The NEMA 4X Series of AC Variable Frequency Drives consists of 10 Analog KBAC Drives and 14 Digital KBDA Drives. This series of drives are our most popular AC Drives because of their rugged, indoor/outdoor, wash down die cast aluminum enclosures. Both the analog and digital models lend themselves to customization to meet individual customer specifications.

KB NEMA 4X AC Drives are available through over 800 distributor’s world wide. Please use our Distributor Search (located in the menu to the right) to find a supplier near you.

Are you an OEM in need of a custom solution?  Would you like your AC NEMA 4X Drive programmed at the factory and ready to go out of the box? With our KB Kustom program, we can build “The Right Control for your Application”.