Siemens AG Snap Action, Limit Switches 3SE51320KD05

The Snap Action Limit Switch 3473-3SE51320KD05-ND features a plastic enclosure measuring 40 mm and is designed according to EN 50041 standards. It includes one normally open (NO) and two normally closed (NC) slow-action contacts, operated by a roller plunger with a plastic roller. The switch is suitable for safety applications, offering positive opening functionality. With an insulation voltage rating of 400 V and a surge voltage resistance of 6 kV, this switch is rated for a mechanical service life of approximately 15 million cycles and an electrical endurance of 100,000 cycles at AC-15, 230 V. It operates effectively within a temperature range and is rated for IP66/IP67 protection, making it suitable for harsh environments. The switch supports various operational currents across different voltages, with a maximum thermal current of 10 A. It features screw-type terminals for electrical connections and can accommodate a range of conductor cross-sections. The mounting position is flexible, allowing for installation in any orientation. This product is ideal for applications requiring reliable position sensing and safety interlocking.