The Bailey 120/240VAC 50/60Hz 24VDC Module Mounting Unit Infi 90 IEMMU01 is a module mounting unit designed by ABB. This unit is specifically made in the United States, catering to the needs of industrial automation and motion control systems in business and industrial settings. The model, IEMMU01, ensures compatibility with various PLC processors and HMI systems, providing a reliable and efficient solution for mounting modules in a controlled environment.