This Miele hose switch & receptacle assembly #03682772 is for use in the Miele hoses models SES 100, SES 105, SES 110 and SES 113 to replace failed switches or receptacles. This is the most common failure with these hoses when they do not conduct electric to supply the powerbrush. You can download a Hose Handle Schematic with installation instructions.   For similar products see our list of Miele Parts & Components.