ZB4BK1213 is a white, 22 mm Harmony XB4 illuminated selector switch head with a two-position stay-put operator designed for panel mounting. It provides integrated LED illumination and is compatible with universal LED blocks, ensuring bright indication in low-light control rooms. This head belongs to Schneider Electric's Harmony XB4 modular family and accepts a range of lens colors (blue, green, orange, red, white, yellow) to support color-coded interfaces in industrial panels. When used with a Harmony XB4 body, it delivers reliable two-position control for machine start/stop or mode selection in tight 22 mm footprints.
