The IDEC HS5D-03ZRNM is a robust safety switch with a metal head and 3NC contacts for secure circuit control. It features an M20 gland port size for cable entry and a plastic head that detects detachment, enhancing operational safety. The compact design allows for up to three contacts, facilitating easy wiring and installation in space-constrained areas. With a high B10d value of 2.0E+11, it ensures reliable performance and longevity in demanding industrial environments.