The OMRON D4C-1720-C is a robust limit switch designed for industrial automation applications, featuring a roller lever with a 17.5 mm diameter sintered stainless steel roller. This compact, prewired switch is housed in a rugged die-cast enclosure with triple-sealed construction, ensuring durability and reliability in harsh environments. Rated for 5 A at 250 VAC and 4 A at 30 VDC, it operates efficiently across a temperature range of -40 to 104°F. Ideal for precise position detection, the D4C-1720-C meets IEC IP67 protection standards and is approved by EN, UL, CSA, and CCC, making it a versatile choice for various automation systems.