The Schneider ZB2BY2912 switch hardware legend plate is designed for use with the company's Auxiliary Contact and Block accessories. It features a single-piece, double-sided polycarbonate plate that features a full 12-character legend window. This product offers a high degree of impact resistance, as well as improved aesthetics. It is suitable for use with a range of products, including the Compact, Tesys, and Pragma series. The legend plate is supplied with adhesive pre-attached to the back of the unit to ensure easy installation.