The Allen-Bradley 803-A24X is a Rotating Cam Limit Switch that controls heavy-duty machinery that turns out repetitive operation cycles where the machine’ss motion correlates with the switch’s shaft rotation. The switch is designed for heavy-duty operations, and it has a control switch that can move in either direction, with reference to any type of mounting plane. The 803-A24X operates with a cam mounted on a shaft, and it is ideal for industrial applications like assembling and packing machines, injection molding machines, and Watergate/lock operations. The device comes with 2 independent CAM operators, with a rotating shaft that has a 150-rpm base speed, and it has a 25A-rated normally-closed contact, with 150/15A and 30/3A MAKE/BREAK current ratings at 120 Volts AC and at 600 Volts AC, respectively. The 803-A24X has 2 can segments, the lobes and the valley, and the switch has a keyway which connects the driven shaft to the machine, and the switch also has a spring-loaded can roller, which is mounted close to the base contact.

The 803-A24X activates its circuit when its lobe makes contact with the cam roller, and when the lower cam segment called the valley passes over the cam roller, the switch’s circuit is de-activated. The device has a cam timing measured in degrees which are determined by the cam’s position on the switch’s shaft relative to the keyway position, and it also has a dwell time which is the total time lapse in activation mode, and it is determined by the length or size of the cam segment. The 803-A24X has a CAM duration range of 14-3460, and like every style A device, its timing and dwell time can be adjusted internally. It has an operating temperature range of -22-150 degrees Fahrenheit, with a storage range of -22-200 degrees Fahrenheit, and it comes with a double shaft extension modification. The 803-A24X switch weighs around It weighs 9.1 pounds, with 4.38 x 5.69 x 7.88 inches overall dimensions, and it is CSA and UL certified.