PSEN ma1.4a-50/PSEN ma1.4-03mm/ 1unit 506320 Magnetic safety switch 2 n/o, square design, IP6K9K, operating distance 3 mm, 5 m cable, height design 18 mm, PU = 1 sensorwith actuator. Our magnetic sensors PSENmag are ideal for monitoring safety gates and positions for all applications thanks to their manipulation-proof concept.