The AR Series emergency stop pushbutton switches are available in three designs. All products in the series come standard with Synchro safety contact, which opens the NC contact (effectively eliminating the connection) upon removal of the contact unit. They can accommodate two padlocks. All frames feature integrated protrusions, as well as a green side indicator for easy identification of operating status. One-touch mounting and removal allows users to mount the unit without twisting wires and to remove the cover by simply pushing down on the release and turning the knob.