The 83872102 is a compact prewired limit switch with a steel roller plunger and threaded barrel, designed for industrial automation and machinery control applications. It features positive opening operation with double break two-way contact elements (form Zt) and snap-action contacts, providing reliable switching performance. The device is housed in a metal case with EN size dimensions and offers IP66/IP67/IP69 protection rating along with IK07 mechanical protection, making it suitable for harsh industrial environments. It operates over a temperature range of -25°C to +70°C and is UL approved (UL 508, UL 50). The switch delivers a mechanical life of 107 operations with a maximum operating force of 10 N and minimum positive opening force of 28 N, ensuring durability in demanding applications such as machine tool positioning, conveyor systems, and automated assembly lines.