Schneider electric harmony xald0x series empty control stations schneider electric xald01 this empty 1 cut out polycarbonate control station is designed for use with oslash 22mm control and signalling components such as pushbuttons pilot lights selector switches emergency pushbuttons key switches etc the enclosure has a light grey base and a dark grey lid and can be front or rear mounted schneider electric xald01 control station 1 way empty