Housing with Pushbutton Dimensions W x H: 85 x 85 mm Dimensions W x H x D: 85 x 85 x 64 mm Front ring: Plastic, black Colour: Grey Contacts: 1 Break Contact (NC) Housing Material: Plastic Labelling: O Protection rating: IP65 Series: SIRIUS 3SB3 Flush-mounted ?: 22 mm