Reliance Electric 57406-K Drive Controller Module

The Reliance Electric 57406-K Drive Controller Module is the main control board in Reliance’s AutoMax DCS drive system, interconnecting the AutoMax PLC with the regulator group to coordinate motor speed and torque. This revision K module (part number 57406; also listed as 0-57406-K or 57C406) provides two gate connector box ports and a single power module interface port to connect control logic with the drive hardware, and it includes a test switch and a one-digit fault-code LED for basic diagnostics. Built for industrial automation, it carries UL listing and CSA approval and is designed to operate within Reliance AutoMax drive regulators, making it a targeted replacement or upgrade for existing systems in manufacturing and material-handling environments.