Reliance Electric 57408-C Power Module Interface

Reliance Electric 57408-C Power Module Interface is a compact, panel-mount interface board that sits between a Reliance AutoMax drive controller and its associated power module within the Automate Digital Control System. The front face pockets four screw terminals for CURRENT CALIBRATION, enabling precise adjustment of the current fed to the power module, while the rear provides three female parallel connectors that carry dedicated ports for the Drive Controller, Analog I/O, and Power Module interfaces. The device is designed as a panel- or rack-mounted PCB, and variants include 0-57408 and 57408-C, with the -C suffix commonly referenced in listings as 57408-C or 0-57408-C. In typical installations, it serves as the critical signal interface and calibration bridge in Reliance Electric drive architectures, supporting industrial drives and DCS systems that require stable current regulation and reliable control signaling between the controller, power module, and I/O circuits. This replacement part is frequently sold for AutoMax controller systems as part of maintenance and repair of legacy Reliance automation hardware.