The 1794-TBN terminal base is an Allen-Bradley/Rockwell Automation terminal base from the Flex I/O 1794 series. It has not been approved for use in Class I, Division 2 environments and applications. The 1794-TBN terminal base has 16 I/O terminal points. It can be used to host different Flex I/O 1794 series output modules on a panel or a DIN Rail. The 1794-TBN terminal base unit operates at -20 to 70 degrees Celsius and it can be stored or transported at -40 to 85 degrees Celsius.