The AP series follows the traditional C&K nomenclature structure for the Build-A-Switch format. The series designation (AP) is first, followed by the operating force, actuator style, actuator color, illumination, bushing style, termination, contact material and terminal style. It is important to note that the most up-to-date specifications are in the catalog page available on the C&K web-site at www.ck-components.com. Additionally, it is important to note that there are a number of notes to pay attention to; for instance, illumination is not available with PC terminals.

