Allen-Bradley 803-C4 4-Circuit Cam Limit Switch

Allen-Bradley 803-C4 is a four-circuit rotating cam limit switch from Rockwell Automation's Bulletin 803 family. The model designation identifies a four-circuit variant, with four independent cam-operated contacts that sense machine position and drive discrete control outputs in automation systems. As a legacy rotating cam limit switch, it is designed for rugged industrial use and integrates with standard control panels to provide position feedback and interlock capabilities across multiple circuits from a single actuator cam. Typical applications include sequencing and safety interlocks in machinery where multiple limit positions must be monitored, reducing wiring complexity and panel space compared with using separate switches. The 803 family is documented as rotating cam limit switches, with variants spanning multiple enclosure styles and circuit counts to tailor the device to exact sensing requirements.