803-B8RHRA

The Allen-Bradley 803-B8RHRA is a Style B rotating cam limit switch that is equipped with 8 circuits, a right hand standard shaft extension, and a speed reducer with a gear ratio of 40:1. Switches of this style also have 10 Amp. snap action contacts, 1 of which is N. O. (normally open) and 1 of which is N. C. (normally closed), a maximum shaft speed of 150 RPM, and a cam duration that ranges from a minimum of 14 degrees to a maximum of 346 degrees. Also included on the 803-B8RHRA switch is a spring-loaded cam-roller assembly which is mounted to the contact base. Its other features include adjustable internal dwell time and timing settings that can only be modified when the switch is not moving. This switch has the capacity to rotate in both directions equally well. With a Type 1 indoor-rated enclosure, the 803-B8RHRA switch can be mounted on any kind of plane.

The 803-B8RHRA’s storage temperature range is -30 to 93 degrees Celsius, and its operating temperature range is -30 to 66 degrees Celsius. This switch’s normal shaft torques are 3 pounds on an inch when the cam roller rides on the lobe, 7 pounds on an inch when the cam roller rides up the cam ramp, and 0.5 pounds on an inch when the cam roller rides in the valley. It also has an approximate weight of 16.3 kilograms or 36 pounds. The heavy-duty 803-B8RHRA switch has a long lifespan and is typically used with machines having operation cycles which are repetitive with correlated shaft rotation and machine motion, including waterway gate operations, punch presses, assembly lines, packing machines, injection molding, and steel forming.