The Allen-Bradley 803-F712RH rotating cam limit switch comes with 7 circuits and 2 cams. The first cam is at the 7th position from the right-hand shaft extension and the second cam is at the 12th position. This switch can be used on machines that have operation cycles that are repetitive and that have the machine motion and shaft rotation correlated. The 803-F712RH switch is a heavy-duty switch that has external dwell time and timing adjustments that are configurable with a screwdriver even while the machine is moving. It also has a spring-loaded cam-roller assembly mounted on the contact base and it has a long lifespan if mounted and used properly. The 803-F712RH switch features 10 Amp. snap action contacts, 1 N. O. (normally open) and 1 N. C. (normally closed), a maximum shaft speed of 150 RPM, a Type 1 and 13 enclosure, and a cam duration that ranges from a minimum of 12 degrees and a maximum of 348 degrees, which is typical of all Style “F” switches.

The typical shaft torques of the 803-F712RH switch are 7 pounds on an inch when the cam roller is riding up the cam ramp, 3 pounds on an inch when the cam roller is riding on the lobe, and 0.5 pounds on an inch with the cam roller is riding in the valley. This switch has an operating temperature range between -30 and 66 degrees Celsius, and its storage temperature range is between -30 and 93 degrees Celsius. The 803-F712RH can be mounted on any plane and it is capable of rotating well in either a clockwise or a counterclockwise direction. The approximate shipping weight of this switch is 14 pounds or 6.4 kilograms and it measures 12.31 x 10.06 x 5.03 inches.