803-B64RA

The Allen-Bradley 803-B64RA is a rotating cam limit switch that has 6 circuits and that also has an enclosure rating of Type 4 or Type 13. This switch comes with adjustable internal dwell time and timing, but users can only modify these settings when the device is not moving. It also comes with a spring-loaded cam-roller assembly that is mounted to the switch’s contact base. Also present on the 803-B64RA rotating cam limit switch are 10 Amp-rated snap action N. O. (normally open) and N. C. (normally closed) contacts, a cam duration with a minimum of 14 degrees and a maximum of 346 degrees, a 150 RPM maximum shaft speed, and a standard left shaft extension. The 803-B64RA switch is ideally used for machines that have operation cycles that are repetitive and that have the general machine motion correlated to the switch’s shaft rotation.

The typical shaft torques of this heavy-duty rotating cam limit switch are 3 pounds on an inch when the cam roller rides in the highest possible position or on the lobe, 0.5 pounds on an inch when the cam roller is in the lowest possible position or in the valley, and 7 pounds on an inch when the cam roller rides up the cam ramp from the valley to the lobe. The 803-B64RA rotating cam limit switch also has an operating temperature range of -30 to 66 degrees Celsius and a non-operating or storage temperature range of -30 to 93 degrees Celsius. It weighs approximately 53 pounds or 24 kilograms and users can mount this switch on any plane. The 803-B64RA switch has the capacity to rotate well in either direction (clockwise or counterclockwise).