The D4NL-4AFA-B is a safety guard lock switch designed for secure door interlocking applications. It features a cuboid shape with an overall length of 95 mm and a height of 35.5 mm. The switch operates with a slow-action mechanism and includes a mechanical lock that is released via a resin key. It is equipped with an orange LED indicator and is suitable for use with 24 V DC power supplies. The device incorporates multiple contact configurations, including normally closed (NC) and normally open (NO) contacts, ensuring reliable safety operation. The D4NL-4AFA-B is constructed with a plastic head and is part of the D4NL series of limit switches.

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