Allen-Bradley 1746-ITB16 USNT IO Terminal Block

Allen-Bradley 1746-ITB16 USNT IO Terminal Block is a 16-position removable terminal block (RTB) that provides the wiring interface for SLC 500 backplane I/O modules in the 1746 family. It is designed to be mated with 16-point digital input modules, enabling field wiring to be swapped quickly by removing only the terminal block while keeping connected wires intact. The USNT designation identifies the North American packaging variant of this RTB, aligning with Rockwell Automation's standard 1746 I/O ecosystem and ensuring proper interface with compatible 1746 input modules within a single backplane. This RTB supplies 16 terminal connections for DC input signals and is intended for use in industrial control panels that implement the SLC 500 architecture, helping to organize wiring and maintain clean harness routing in 16-channel input configurations.