The mounting box is designed for concrete and brick walls and it is 73 mm high. The box has 2 fixed inlets for Ø 20 conduit. There are also 3 knock-out inlets altogether at the side, and possibility to insert 2 back inlets. Made of halogen free material (IEC/61249-2-21) and fulfills the requirements of the glow wire test according to the standard IEC/EN60670: 2005 (850 °C).