The D4NL-1EFA-B4 is a highly reliable door and interlock switch designed for industrial applications. Constructed with durable plastic housing and featuring a screw mount installation, this switch ensures secure operation in various environments. With an IP67 rating, it offers protection against dust and water ingress. The orange LED illumination provides visual indication of the switch status, enhancing safety in working areas. The contact configuration of 2NC/1NO + 1NC/1NO allows for versatile connectivity, while the 10A and 2.5A current ratings make it suitable for handling different loads. With a voltage rating of 120V and 125V, this switch is ideal for use in machinery and equipment. The PG13.5 conduit thread size ensures easy and reliable installation. Trust in the D4NL-1EFA-B4 for efficient and secure switching operations in your industrial setup.