Illuminated Push Button, 22.5 mm, Maintained Action, Flush Button Type of Operator, Head Material Plastic, Contact Form 1NO, Bezel Silver Coated, Color White, Number of Operators 1, NEMA Rating 4X, IP Rating IP67, IP69K, Legend No Legend, Legend/Background Color No Legend/White, Standards Bureau Veritas, CCC, CE, CSA, GOST-R, Lloyd's Register, UL Listed, Terminal Connection Screw Clamp, Features Field Conversion from Momentary to Maintained can be Done, Includes Contact Block Mounting Adapter