The Allen-Bradley 803-B34RH is a Style B rotating cam limit switch which is equipped with 3 circuits, with a right-hand shaft extension, and with Type 4 and Type 13 enclosure ratings. Mounting of this switch is possible on any plane and at any angle. It is capable of rotating well in either direction (clockwise or counterclockwise). Like all other Style B switches, the 803-B34RH switch has a 150 RPM maximum shaft speed, 10 Amp. snap action contacts which include 1 N. O. (normally open) contact and 1 N. C. (normally closed) contact, and a minimum cam duration of 14 degrees and a maximum cam duration of 346 degrees. The 803-B34RH also has a spring-loaded cam-roller assembly that is mounted to the cam switch’s contact base and it features internal dwell time and timing settings that can be adjusted only when the machine is not in motion.

Manufacturers can use the 803-B34RH Style B rotating cam limit switch for heavy duty applications and for machines that have repetitive operation cycles with correlated shaft rotation and machine motion. It has 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, and of 0.5 pounds on an inch with the cam roller in the valley. The operating temperature of the 803-B34RH switch is -30 to 66 degrees Celsius and the storage temperature is -30 to 93 degrees Celsius. The approximate weight of this cam switch is 36 pounds or 16.3 kilograms.