Siemens AG Snap Action, Limit Switches 3SE51120KH01

The Snap Action Limit Switch 3473-3SE51120KH01-ND features a metal enclosure with a compact design measuring 40 mm in width. It is equipped with one normally open (NO) and two normally closed (NC) slow-action contacts, ensuring reliable operation in various applications. The switch operates with a positive opening mechanism and has a mechanical service life of approximately 15 million cycles, making it suitable for demanding environments. This limit switch is rated for an insulation voltage of 400 V and offers a high degree of protection with an IP66/IP67 rating, ensuring resistance to dust and water ingress. It can withstand shock resistance of 30g and vibration resistance of 0.35 mm/5g, which enhances its durability in industrial settings. The device supports operational currents of up to 6 A at various AC voltages and has a thermal current rating of 10 A. The actuator head includes a metal lever and a plastic roller, providing flexibility in actuation. The switch can be mounted in any position and is secured using screw fixing. Overall, this limit switch is designed for safety applications and complies with relevant standards, making it a reliable choice for engineers seeking robust and efficient switching solutions.