Surface-mounted housing, housing: plastic, with stainless steel screws, installation points: 4, cable entry: rear: 1 x M20, side: 2 x M20 (1 x each side), color RAL value: RAL 7035, color: lower housing section anthracite, connection to SmartWire-DT: no, can be used for: 4 x 22.5, can be used for: (illuminated) pushbuttons, (illuminated) selector buttons, key buttons, indicator lights, EMERGENCY STOP/EMERGENCY OFF buttons with yellow label, flat rear contacts M22-FK., flat rear LED elements M22-FLED-.