XCKN2118P20C and XCKN2118P20 limit switches are designed for reliable position sensing in automation. They feature a thermoplastic roller lever actuator, a 1NC+1NO contact configuration, snapaction switching, and an M20 mounting thread, making them suitable for a range of endoftravel and strokedetection applications. Key benefits Dual contact configuration (1NC+1NO) in a single device simplifies wiring and control logic by providing both normally closed and normally open outputs. Snapaction switching delivers fast, crisp electrical response, improving detection reliability and reducing contact wear. Thermoplastic roller lever provides smooth actuation and reduces wear on the interacting components in moving machinery. M20 mounting thread enables straightforward installation into standard frames or enclosures common in industrial equipment. Specifically suited for repetitive endoftravel sensing and position monitoring in automated lines and small to midsize machinery. Key attributes Actuator: thermoplastic roller lever Contact configuration: 1 normally closed (NC) and 1 normally open (NO) Switching action: snap Mounting: M20 thread Model numbers: XCKN2118P20C and XCKN2118P20 Application: limit switch for position sensing in automation Applications and use cases Endoftravel detection on conveyor systems to stop or reverse motion and prevent overtravel. Home or limit position sensing in packaging machines and automated assembly lines to ensure accurate cycle start points. Stroke sensing in compact presses or machine tools where rapid, reliable switch action is required at a defined position. Technical considerations Suitable for installations requiring both NC and NO outputs from a single switch for versatile control logic. The thermoplastic roller lever is designed to interact smoothly with moving components, aiding consistent actuation. The M20 mounting format supports compatibility with common mounting hardware and enclosures used in industrial setups. This description reflects the model and feature set indicated by the product title, preserving the specified actuator type, contact configuration, action, and mounting specification.