The Allen-Bradley 803-A11 is a rotating cam limit switch, and one of the standard units of the 803 cam switches family. The rotating cam limit switches are heavy duty control circuit devices applied to machinery that works with repetitive operational cycles. They have a wide range of applications in the industry. The Allen-Bradley 803-A11 rotating cam limit switch is designed with one left-side shack and a conduit entrance each side. The side plates are made of rugged cast iron and the base of this cam is made of a heavy steel material. The open contacts of the Allen-Bradley 803-A11 rotating cam limit switch operates at 25 Amps and at 150 RPM. The cam has a time duration of 14 degrees at a minimum and 346 degrees at maximums.

This rotating cam limit switch has 11 circuits and requires a Type 1 enclosure; this kind of enclosure protects the unit inside from the entrance of dust and other particles as well as protecting the hazardous parts and the connections of the unit. This enclosure enables the cam limit switch to operate in an indoor environment. The length of the Allen-Bradley 803-A11 rotating cam limit switch is around 16.19 inches (411.2 millimeters) while the approximate weight is around 44 pounds (18.1 kilograms). Given the length of the unit, it could apply in processes and applications where a compact unit like this one is required due to limited space. The main applications of the Allen-Bradley 803-A11 rotating cam limit switch are in machines that specialize in injection or molding, packing machines, and punch presses.