Position switch Plastic enclosure open type 30 mm 1 NO/1 NC quick action contacts Metal plunger, IP20 Open-type position switches SIRIUS 3SE5 for use as auxiliary switches in cabinets, particularly for locations unaffected by humidity and dust. Their compact construction makes the switches particularly suitable for use in confined conditions. Thanks to the robust metal plunger, they have greater abrasion resistance. Mounting and operating points according to EN 50047 The devices have worldwide approval (IEC, UL). Versions are available with various contacts in snap-action, slow-action or slow-action with make-before-break versions. Safety is a SIRIUS business.