The IDEC HS5D-12ZRNP is a robust safety switch featuring a metal head for enhanced durability. It includes 2NC contacts and an M20 gland port size, with the option for a plastic head. Designed to detect detachment of the head, it ensures additional safety measures are in place. The compact design allows for up to three contacts, facilitating easy wiring and installation. With a high B10d value of 2.0E+17, this switch promises reliable performance in safety-critical applications.