The 803-F412R is an Allen-Bradley Rotating Cam Limit Switch, meaning that is a control circuit device, often used in heavy duty applications. Out of the six different styles that are available for Cam Limit Switches, the 803-F412R is the version of an “F” style switch; the “F” style modification is known for having external timing and dwell adjustments for industrial machines that operate on a repetitive cycle of operations. The Bulletin 803 Rotating Cam Limit Switches offers 10 Amp snap action contacts that single pole double throw (1 N.O. to 1 N.C.). The 803-F412R comes in the 1 and 4/13 type enclosures and has between 2 and 12 independent cam operators. The module’s cam duration varies between 12 and 348 degrees. Designed for rugged applications, the 803-F412R is a world-class quality limit switch that requires very little maintenance, when correctly applied. This Allen-Bradley device is often used with applications that involve assembly and the packaging machines, punch presses, injection molding machines, waterway gate operations, and lock operations. It is also applied to steel forming machines and operations that handle heavy metals. The 803-F412R has a left shaft extension as a standard feature of its “F” style modification. This series of Rotating Cam Limit Switches also has a spring-loaded cam-roller assembly, which is mounted to the contact base of every switch.

The timing of the 803-F412R switch refers to the time when the cam activates the circuit. The timing and the dwell can be adjusted while the machine is in motion, by use of an external screwdriver. It also maintains a 150 RPM maximum shaft speed. The best type of enclosure for these rotating cams is the general type, as well as a dust-tight industrial enclosure. The 803-F412R rotating cam limit switch is UL listed, CSA certified, and CE approved to serve the quality products.