The A22NZ2BMNBA is a non-lighted selector switch operation unit from the OMRON A22N series. It features a black, opaque plastic bezel and provides two manual reset switch positions. As a modular component designed for 22mm panel cutouts, it allows for flexible configuration with various contact blocks to create a complete switch assembly. The A22N series is engineered for control panel miniaturization and easy assembly, making this operation unit ideal for industrial controls, machinery, and automation systems requiring reliable manual input.