The ABD111NUR is a flush-mounted momentary pushbutton switch from the TWND Series featuring a 1NO-1NC (one normally open, one normally closed) contact configuration. This heavy-duty industrial switch is constructed with rugged components including a chrome-plated zinc locking ring, die-cast zinc mounting thread, and self-cleaning wiping contacts for reliable operation in demanding environments. The switch is rated for AC-12 control of resistive and solid-state loads at 24V (10A), 50V (10A), 110V (10A), 220V (6A), and 440V (2A), as well as DC-12 control at 24V (10A), 50V (7A), 110V (5A), 220V (3A), and 440V (1A). It meets UL Type 4X, 13, and IP65 watertight/oiltight panel ratings, making it suitable for harsh industrial, manufacturing, and process control applications where reliable switching and environmental protection are critical.