The IDEC HS5D-11RN is a safety switch with a plastic head designed to ensure enhanced operational safety by detecting the detachment of its head. It features 2NC contacts and an M20 gland port size for secure connections. The switch boasts compact dimensions capable of accomm ODating up to three contacts and offers an alternative version with a metal head. Its design simplifies wiring procedures and it has a high B10d value of 2.0E+12, indicating its reliability in safety-critical applications.