The OMRON A22NN-MMM-NGA-G101-NN is a robust pushbutton switch designed for industrial automation applications. Featuring a 22 mm diameter and a brushed metal bezel, this non-lighted, mushroom-style switch offers a momentary action with a green opaque button. Engineered for durability, it meets IP66 and NEMA4X, 13 standards, ensuring reliable performance in harsh environments. Ideal for control panels, it includes a screw terminal block for easy installation and is equipped with dual NO contacts for versatile use.