The Schneider Electric ZB4BD3 is an illuminated push button with a large diameter that is used to control electrical circuits. It has a durable ABS plastic push button and a chrome-plated zinc alloy bezel. The illuminated button has a typical operating temperature of -25°C (-13°F) to +70°C (+158°F) and is rated for 16A at 500VAC. This push button also has two different colors of illumination, red and green. The ZB4BD3 includes a knob and a threaded mounting stem.