Insulated housing, box size HxWxD = 500x375x225mm, for NZM size 2, for NZM size 2, protection class 2, impact-resistant polycarbonate, switch door coupling rotary handle black included, mounting plate pre-drilled for switch and optional PE/N terminals, housing cover prepared for rotary handle, cover transparent smoke gray, wall mounting tabs, including cable entry flange at the top and bottom and cable entry grommet.