Reliance 57C330B AutoMax Remote I/O Head is a remote I/O interface head used with AutoMax PLCs to connect field I/O to the main controller. It runs on 120/240 VAC input and supports four rail/head connections for distributed I/O, weighing 6.92 lb. This model is documented as the Automax Remote I/O Head and is listed as discontinued by the manufacturer, reflecting its status as legacy equipment for 120/240 VAC AutoMax networks.
