The 803-P7LH is a rotating cam Limit Switch. It belongs to the style “P” modification, as well as to the 803 series. The 803-P7LH is manufactured by Allen Bradley. It has 7 circuits, 25 Amps, and a maximum of 400 RPM. The 803-P7LH contains an N.C Double Break contact, unlike most of the other rotating cam Limit Switches in this category. The 803-P7LH has 2 to 12 Independent Cam Operators, and functions on the basis of a cam that is mounted on a rotating shaft, so that as the shaft rotates, the contacts are accentuated by the cams. The 803-P7LH weighs 21 pounds and has a Right shaft extension, with options for modifications to a Left-Hand Extension. For adequate protection and shield from dust and water, the 803-P7LH should be paired with a Type 1 enclosure. This general purpose enclosure ensures protection from light, water, and dust particles, as well as primarily preventing contact with live parts of the module.

The Cam duration for the 803-P7LH extends from a minimum of 11 degrees to a maximum of 349 degrees. The rotating shaft, 2 to 12 cam assemblies, a spring-loaded cam-roller assembly, and 2 to 12 circuits function together as the unit called the Rotating Cam Limit Switch. The 803-P7LH has specified degrees of rotation, which determine how long the circuit would be activated during the 360-degree cycle. The 803-P7LH also requires cam code designators that must be sequentially entered into the cam code beginning from the standard driven shaft extension, whether left or right. Durability and efficiency are also considered for the 803-P7LH; these characteristics are strengthened with rugged Cast Iron plates on the sides and a heavy-duty steel base. The 803-P47H, similarly to other “P” styled rotating cam limit switches, is available with or without cams and is an excellent choice for a Rotating Cam Limit Switch.