PTC module for a temperature control device, especially for a motor vehicle, - with at least one PTC element, having a flat element cross section transversely to a longitudinal direction of the module, and having two large outer surfaces (12, 13) along this module longitudinal direction, facing away from each other, and first and second small outer surfaces (14, 15), facing away from each other and joining together the two large outer surfaces (12, 13), - with an envelope body, which encloses the respective PTC element at least in the circumferential direction, - with two electrical conductors (22, 23), which extend in the module longitudinal direction and are spaced apart from each other in the element cross section and electrically conductively connected to the respective PTC element, and - with first and second electrically isolating insulator plates (19, 20), which extend in the module longitudinal direction, characterized in - that the first and second electrically isolating insulator plates (19, 20) are connected in heat transfer manner to one of the large outer surfaces (12, 13) of the respective PTC element, - that the respective electrical conductor (22, 23) is formed each time by an electrically conducting conductor coating (26, 27), formed each time on one of the insulator plates (19, 20), - that one of the electrically conducting conductor coatings is a first conductor coating arranged on the first insulator plate only in a first edge region, which borders on the first small outer surface, - that the other of the electrically conducting conductor coatings is a second conductor coating arranged on the second insulator plate only in a second edge region, which borders on the second small outer surface. - with at least one PTC element, having a flat element cross section transversely to a longitudinal direction of the module, and having two large outer surfaces (12, 13) along this module longitudinal direction, facing away from each other, and first and second small outer surfaces (14, 15), facing away from each other and joining together the two large outer surfaces (12, 13), - with an envelope body, which encloses the respective PTC element at least in the circumferential direction, - with two electrical conductors (22, 23), which extend in the module longitudinal direction and are spaced apart from each other in the element cross section and electrically conductively connected to the respective PTC element, and - with first and second electrically isolating insulator plates (19, 20), which extend in the module longitudinal direction, - that the first and second electrically isolating insulator plates (19, 20) are connected in heat transfer manner to one of the large outer surfaces (12, 13) of the respective PTC element, - that the respective electrical conductor (22, 23) is formed each time by an electrically conducting conductor coating (26, 27), formed each time on one of the insulator plates (19, 20), - that one of the electrically conducting conductor coatings is a first conductor coating arranged on the first insulator plate only in a first edge region, which borders on the first small outer surface, - that the other of the electrically conducting conductor coatings is a second conductor coating arranged on the second insulator plate only in a second edge region, which borders on the second small outer surface.