The IDEC HW1B-A4F10-B is a robust 40mm pushbutton featuring a maintained operation with one Normally Open (N/O) contact. Designed for safety and reliability, it includes finger-safe IP20 contacts and tamperproof construction. This non-illuminated pushbutton from the HW series meets EN60947-5-5 standards and complies with SEMI S2 standards, ensuring high-quality emergency stop functions for industrial applications.