The D4SL-N3QFA-D4 is a rugged and reliable door interlock switch designed for industrial applications. Featuring a frame mount design and screw termination method, this switch ensures secure installation. With an IP67 rating, it offers protection against dust and water ingress, making it suitable for harsh environments. The bright orange LED illumination provides visual indication of the switch status, enhancing safety measures. The contact configuration of 3NC + 2NC/1NO allows for versatile usage. With a current rating of 10A and 2.5A, and voltage rating of 120V and 125V, it is capable of handling high power loads. The conduit thread size of 1/2-14 NPT ensures compatibility with standard fittings. Overall, the D4SL-N3QFA-D4 is a crucial component for ensuring efficient and safe operation in industrial settings.