This Bulletin 803 Rotating Cam Limit Switch by Allen Bradley, the 803-A44, is a condition sensing type device, made for heavy duty control in applications such as waterway gates, mechanical presses, heavy metals industry, and rotating tables. The 803-A44 rotating cam limit switch shaft rotation is correlated with machinery movement. While rotating, at user mechanically defined positions, it actuates contacts opening and closing. It is designed to withstand numerous operating cycles in a heavy duty operation. It can rotate in both clockwise and counterclockwise directions and can be mounted on any surface level. The 803-A44 comes in a style A bulletin 803 rotating cam limit switch housing, with four self-regulating cam operators (25A rating normally closed double break contacts) and with type 4 & 13 watertight, oil-tight, and dust-tight industrial enclosures. Its shaft is extended on the (standard) left side.

The 803-A44 is assembled with a steel base, a shaft with a 0.75-inch diameter, iron side plates, cam actuated contacts at 25A, adjustable cam segments with locking nuts, and cable entry holes. For this Bulletin 803 limit switch model, all dwell and timing adjustments must be made internally, and only when the device is not moving. Use the angular degree scales on cams and the shaft to do this easily and precisely. The Allen-Bradley 803-A44 has dimensions are 274.6 x 301.6 x 173.0 millimeters (10.81 x 11.88 x 6.81 inches) without its shaft. The product’s weight is 17.7 kilograms (39 pounds) and its operating temperature range is -30 to 66 degrees Celsius (-22 to 150 degrees Fahrenheit). This product has not been manufactured by Allen-Bradley since 2007.w