The invention relates to an electrical machine 10, which comprises a stator 12 with a stator support 14 and a stator laminated core 16 attached thereto, which carries a stator winding 18 with winding heads 20 projecting axially over the stator lamination stack 16, a winding head 20 being potted with a heat-conductive potting compound 22 which forms an outer peripheral surface 24 and an inner peripheral surface 26, wherein the outer peripheral surface 24 is in Wärmeleitkontakt with a stator 28 and wherein the stator 12 has a cylindrical inner space 30 in which a radial air gap 32 by means of a rotor shaft 34 rotatably mounted rotor 36 is arranged. The electric machine 10 has a first fluid cooling device 38 for wetting the inner circumferential surface 26 of a winding head 20 with a cooling fluid, wherein at least a first Fluidleitelement 40 is provided, which is fixed to the winding head 20 and formed so that a introduced into the inner space 30 cooling fluid during operation of the electric machine 10 is substantially prevented from penetrating into the air gap 32 located between the rotor 36 and stator 12.
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