Surface-mounted housing, housing: plastic, with stainless steel screws, can be individually labelled with pushbutton configurator, installation locations: 1, cable entry: rear: 2 x M16, top: 1 x M20, side: 2 x M20/M25 (1 x each side), colour RAL value: RAL 1004, colour: housing base anthracite, connection to SmartWire-DT: no, can be used for: 1 x 22.5, can be used for: EMERGENCY STOP/EMERGENCY OFF buttons