Allen-Bradley 100-A45NC3 Contactor Contact Block and Auxiliary Contact

Allen-Bradley 100-A45NC3 Contactor Contact Block and Auxiliary Contact is an accessory designed for Allen-Bradley’s 100-series contactors that adds auxiliary signaling contacts to the assembly. The block synchronizes with the main contactor to extend control and signaling capabilities within a panel, enabling additional circuits to respond to the contactor’s operation without replacing the primary device. This makes it suitable for industrial automation and motor-control applications where clear status indication and simple interlock logic are needed in control diagrams and PLC wiring. By integrating with the compatible 100-series family, the auxiliary block maintains the same electrical environment as the host contactor, helping to keep wiring organized and ensuring reliable signaling in dense control panels. The 100-A45NC3 accessory is part of the standard lineup for enhancing control logic around 100-series contactors, providing a compact, integrated solution for expanding signaling, feedback, and interlock options in machinery and manufacturing setups. For exact compatibility and installation details, refer to the official Allen-Bradley/Rockwell Automation documentation for the 100-A45NC3 product line.