The XW series illuminated Emergency Stop Switch includes a revolutionary new technology called safe break action that will change the way e-stop switches are designed. This innovative concept provides greater levels of human safety and is the first of its kind in the world. Conventional e-stop switch is designed with spring pressure on the normally closed contacts, keeping them in the closed position and allowing the machine to operate. Improper installation or excessive force to the stop button in an emergency may break or dislodge a vital part, causing the spring loaded contact to stay closed. This situation renders the e-stop incapable of stopping the machine and can lead to catastrophic events, personal injury and possible loss of life. It offers up to four safe-break contacts with a depth behind the panel that is half the size of conventional E-Stop switches. This means that there is an additional contact available and switch can be used in level 4 safety category applications.