The 157/1 (1571) backbox is the standard Australian and USA back box size and shape. It is used for all the rectangular switches in the C-Bus ranges including the DLT and eDLT but not for the Reflection range of input switches.
It can be placed horizontally for the Modena range or vertically for the Saturn and Neo ranges.
Height: 92 mm
Width: 43 mm
Depth : 43 mm