What are selector switches?
Selector switches contain a simple selector switch on the front of the panel and a broad range of potential contact combinations on the inside of the enclosure. They have a rotating cam with ridges and flats, allowing the operator to actuate the plungers independently.
What is a stack light?
Stack lights are a mini-tower of independent lights mounted on the top of a machine. Since stack lights are towers, they can be seen from all directions (360 degrees). Operators know what the machine is doing by checking either the position or the colour of the lights. They can also provide an audio alarm and / or a strobe light signal.