This generic specification relates to special-use electromechanical switches of certified quality. Switches covered by this specification:

a) are devices that open, close, or change the connection of a circuit by the mechanical motion of conducting parts (contacts).

b) have a maximum rated voltage of 600 volts.

c) have a maximum rated current of 63 amperes.

This generic specification does not include keyboards or keypads that are intended for use in information-handling equipment.

Switch families shall be described in sectional specifications that will reference this generic specification. Blank detail specifications, from which a detail specification may be developed by filling in the relevant performance data, will reference the applicable sectional specification. In lieu of blank detail specifications, the sectional specification may provide instructions for the preparation of detail specifications.

However, contrary to the Basic Rules and Rules of procedure of the NECQ System, this generic specification allows the requirements of the Sectional, Blank Detail, and/or Detail Specifications associated with it to be either more severe or less severe than the requirements of this specification. It also allows a manufacturer to provide a Supplier Declaration of Conformity.