PSEN 1.1p-20/PSEN 1.1-20/8mm/ 1unit 504220 Magnetic safety switch 2 n/o, 4-pin M8 male connector, square design, height design 13 mm, switching distance 8 mm, PU = 1 piece with actuator. Our magnetic sensors PSENmag are ideal for monitoring safety gates and positions for all applications thanks to their manipulation-proof concept.