Abstract: The present invention is directed to a method of insulating the stator of an electronically commutated direct current motor, in order to also fulfill high insulation and protection requirements. This method comprises the following steps:the stator (1) is introduced into a closable form with laterally retractable jaws (21);the form is closed, wherein it encloses the outer contours of the stator (1) including the printed circuit board (11), with a spacing, at least in regions;a thermoplastic hot-melt adhesive based on polyamide is injected under pressure into the form;the form is opened and the extrusion-coated stator (1) is removed.