803-A5RE

The Allen-Bradley 803-A5RE is a rotating cam limit Style A switch equipped with 5 circuits and a speed reducer device that has a gear ratio of 120:1. It has a Type 1 enclosure and an approximate weight of 20.4 kg or 45 lbs. Style A rotating cam limit switches, like the 803-A5RE switch, are also equipped with a standard left-hand shaft extension, a 150 RPM maximum shaft speed, 25 Amp.-rated N. C. or normally closed double break contacts, a 14-degree minimum cam duration, and a 346-degree maximum cam duration. This switch also has a spring-loaded cam-roller assembly that is mounted on the contact base and is capable of heavy-duty use, with a long product lifespan. The internal dwell and timing of the 803-A5RE switch are adjustable but the user can only adjust these settings when the machine is not running. This switch is ideal for use with machines featuring repetitive operation cycles, like assembly lines and packing machines, where the machine’s motion is correlated to the shaft rotation.

Mounting the 803-A5RE switch is possible on any plane and it also has the capacity to rotate in either a clockwise or a counterclockwise direction. Its operating temperature is -30 to 66 degrees Celsius and its non-operating temperature is -30 to 93 degrees Celsius. The 803-A5RE also features typical shaft torques of 7 pounds on an inch when the cam roller rides up the cam ramp, of 3 pounds on an inch when the cam roller rides on the lobe or highest point, and of 0.5 pounds on an inch with the cam roller is in the valley or lowest point.