The Bulletin 803-P4LHX by Allen Bradley is a high-end control circuit device, used to carry out a series of heavy-duty demanding industrial applications. Featuring a versatile selection of accessories, mounting options, and handles, the 803-P4LHX offers the ease of creating perfect solutions for any industrial application. The 803-P4LHX rotating cam switch device is used with machinery that involves an operation with cyclic movements or rotations take place. Specifically, the 803-P4LHX module is used in a particular type of machinery in which the machine’s motion is related to the operation of shaft rotations. The 803-P4LHX belongs to the “P” style of the general 803 rotating cam switch series and comes with a unique set of features and functionalities towards simplifying the overall industrial operations. The 803-P4LHX devices run at a maximum shaft speed of 400 rpm and feature the minimum cam duration of 11 degrees & the maximum cam duration of 349 degrees. Specified under the Type 1 enclosure of the 803 rotating cam switch devices, the 803-P4LHX device has 2 to 12 independent cam operators and features a 25 Amp N.C double break contact for maximum efficiency. These variants of the rotating cam switches are available with cams or even without cams.

The style “P” 803-P4LHX rotating cam switch device comes with internal timing & dwell adjustments. Internal timing & dwell adjustments must be implemented when the device is not in movement. In order to make better adjustments, the user must remove the cover, loosen the cam bolts, and rotate the given cams to the desired position. When the cams have been set to their proper position, the user may go forward with tightening the cam bolts and reinstalling the cover. Style “P” rotating cam switch devices have their shaft extension on the right as a standard. Bulletin 803-P4LHX devices come with angular degree scales located on the cam mounting plate offering the overall ease of setting the same.