The Omron D4GS-NK4 Safety Door Switch provides Adjustable mounting, and a Type 2 interlock featuring Low level coded coding for enhanced operator protection. Built to withstand harsh industrial environments, it offers a robust IP67 protection rating, supports 0.1 to 0.5 m/s operating speed, and ensures dependable performance with a 10 mm min direct opening travel. With 300 mΩ max. (with 1 m cable) ; 500 mΩ max. (with 3 m cable); 700 mΩ max. (with 5 m cable) contact resistance, 250 V rated insulation voltage, 100 MΩ min. insulation resistance, and a 2 × 2 mm min contact gap, it delivers safe and consistent operation. Manufactured by Omron and listed under Omron Safety Door Switch solutions, this model belongs to the D4GS Series.