The IDEC YW1L-MF2E11Q4S is a 22mm illuminated pushbutton featuring a blue LED for clear visibility. It includes an extended shroud for enhanced protection and operates with momentary action. The unit offers a contact configuration of 1 Normally Open (NO) and 1 Normally Closed (NC), suitable for use with both 24VAC and 24VDC power sources. Designed for easy installation with its 22mm mounting style, it also provides an IP20 rating to ensure finger safety.