118 type horizontally mounted switch, the panel length is divided into three types: 118mm, 153mm, 198mm. The bottom box is divided into single, medium and long.

118 single bottom box: the panel size is 99mm*65mm, and the distance between the screw holes of the bottom box is 84mm.

118 medium bottom box: The panel size is 136mm*65mm, and the distance between the screw holes of the bottom box is 121mm.

118 long bottom box: The panel size is 177mm*65mm, and the distance between the screw holes of the bottom box is 162mm.