The Pilz 504229 is a safety switch featuring a magnetic trigger, a PSEN 1.1 series design, two normally open (NO) contacts, and an IP69K rating. The switch is used in industrial automation systems to provide reliable safety switching when personnel are in close contact with machines. It is used as an emergency stop and guard interlock in applications such as gantry robots, presses, loading/unloading systems and conveyors. The unit is rated for up to 6A at 250 VAC, making it suitable for a variety of switching requirements.