PSEN ma1.4p-57/PSEN ma1.4-03mm/ 1unit 506337 Magnetic safety switch 2 n/o, 1 auxiliary contact n/o, 8-pin M8 male connector, square design, LED, IP67, operating distance 3 mm,height design 18 mm, for series connection with PSEN ix1, PU = 1 sensor with actuator.