The Allen-Bradley 803-F512X is a Style “F” rotating cam limit switch featuring a double shaft extension and 5 circuits. It has external dwell and timing settings installed that can be adjusted by using a screwdriver, even while the device is in motion. The rotating cam limit switch also has a spring-loaded cam-roller assembly that is mounted to the contact base. It is ideal for use with machines that have operation cycles that are repetitive and whose shaft rotation is correlated with the motion, the 803-F512X switch is heavy duty and has a long life expectancy if used properly. All Style “F” switches, including this one, come with a 150 RPM maximum shaft speed, 10 Amp. snap action contacts, 1 N. O. (normally open) and 1 N. C. (normally closed) contact, and a 12-degree minimum or 348-degree maximum cam duration.

The typical shaft torques of the 803-F512X switch are and 0.5 pounds on an inch with the cam roller is in the valley, 7 pounds on an inch when the cam roller rides up on the cam ramp, and 3 pounds on an inch when the cam roller rides on the lobe. It has a storage temperature of -30 to 93 degrees Celsius, as well as an operating temperature of -30 to 66 degrees C. With enclosure ratings of Type 1 and 13, this switch can be mounted on any plane without affecting its rotation ability, which works well in either a clockwise or counterclockwise direction. The approximate dimensions of the 803-F512X switch are 17.56 x 15.31 x 7.66 inches and it has a weight of 20 pounds or 9.1 kilograms.