A limit switch is a switch operated by the motion of a machine part or the presence of an object. A limit switch can be used for controlling machinery as part of a control system, as a safety interlock, or as a counter enumerating objects passing a point. Features: Applicable to the electric circuit of voltage: ≤ 380V 50/60Hz (AC Ue) & ≤ 220V 50/60Hz (DC Ue) Working current: ≤ 5A (AC Ie)  &  ≤ 0.15A (DC Ie) Widely used in Direction changeover, Speed limit, Travel/procedure control, and Movement automation in machines. Specifications: Model: YBLX-K1/411 Type: Roller Plunger Type travel switch Ingress protection: IP52 Conventional thermal current (Ith): 5A Rated voltage: 380V AC / 220V DC Rated control current: AC 5A / DC 0.15A Operation frequency: 20 times / minute On-load factor: 40% Life span: Mechanical: 600,000 times Electrical: 300,000 times Ambient temperature: -5°C - +40°C Relative humidity: ≤ 85%(20°C) Altitude: ≤ 2000 meters Voltage resistance: Between terminals at same levels (1140V) Between live parts and grounding (1890V) Between terminal and dead metal parts (2500V) Maximum operating force (max OF): 20N Maximum operating range ( max PT): 5mm Minimum overtravel (min OT): 5mm Package Include: 1 x  YBLX-K1/411 (R) Limit Switch