Allen-Bradley 800MR-PA16RA Push Button Unit Red Lens

Allen-Bradley 800MR-PA16RA is a 22.5 mm round push-button unit with a red lens and a flush-head design, intended for panel mounting in industrial control applications. This PA16RA variant is a contactless operator within the 800MR family (Contact None), meaning it provides actuation and illumination without built-in switching contacts; you pair it with compatible 800MR contact blocks if you need NO/NC signaling. The unit uses a full-voltage incandescent illumination option (120 VAC) as indicated by the 16 voltage code in related 800MR literature, delivering a bright red indication when energized, and the flush head sits close to the panel surface with a mounting ring that extends roughly 3 mm beyond the cap for a secure fit. Typically used for STOP/ALARM signaling, start/stop control, or operator indicators in automation panels, it fits Rockwell’s 22.5 mm modular push-button standard and can be combined with other 800MR components to tailor a control station.