LIGHT KEYING ARRANGEMENT FOR MOUNTING ON A MOUNTING RAIL

摘要

A set of interchangeable keying members for keying a body that is mountable on mounting rails having keying features of different sizes and shapes, wherein the members of the set may each comprise: a key body for being disposed in a recess of the body and having a keying feature that corresponds to the keying feature of the mounting rail for engaging the keying feature of the mounting rail when the body is mounted thereto. The size, or shape, or position, or a combination thereof of the keying feature of each of the keying members of the set of keying members may be different and correspond to a keying feature of a mounting rail.