A push button in the elevator car and at landings that commands the door operator to hold or reopen the doors.
Full Definition
The door open button provides passengers with a means to prevent door closure or reopen closing doors, improving accessibility and comfort. When pressed in the car, the door operator resets the dwell timer and keeps doors open. At landings, the button typically illuminates to show it is active. The door open button must not override safety edge or door lock requirements; it functions within the limits defined by the elevator controller and EN 81-20. It is particularly important in accessible lifts for wheelchair users and people with mobility impairments.
