Abstract: A fan with a nozzle mounted to a base plate, wherein the base plate has on its rear wall a mounting device with an upper and lower holding device for mounting the fan on a top-hat rail. The upper holding device and the lower holding device reach over an upper edge or a lower edge respectively of the top-hat rail in the mounted state and are arranged offset from one another in a direction running parallel to the longitudinal axis of the top-hat rail in the mounted state of the fan.

Abstract: A cooling and holding device for heating-elements, more particularly PTC heating-elements, including a flat housing having at least one heating shaft in which there is at least one heating-element, wherein the heating shaft has opposing shaft walls between which the heating-element is clamped, and at least one side slit that separates the shaft walls such that the distance between the shaft walls can be varied for installation of the heating-element, wherein at least one clamping section outwardly protruding from the flat housing, grips the flat housing, spanning the side slit, and is elastically deformed in the mounted state of the heating-element so as to provide a pressing force of the shaft walls on the heating-element in the assembled state.

Abstract: A cooling and retaining body for holding heating elements, in particular PTC heating elements, having a heating-element holder, in which the heating elements are mounted. The heating element holder has a plurality of circumferentially distributed accommodating regions, in each of which at least one heating element is arranged, wherein the accommodating regions are formed between an outer part and an inner part, which is arranged in the outer part, and at least the outer part has a polygonal profile with a number of corners connected by sides, wherein the accommodating regions are arranged in the corners of the polygonal profile, and the sides of the polygonal profile are deformed elastically in order to generate a clamping force which acts on the respective heating elements.

Abstract: The invention relates to a door contact switch, especially for a switchgear cabinet, having a switching piece, a baseplate and a switch housing accommodating the switching piece, the switch housing being movably mounted relative to the baseplate. At least one edge of the baseplate has at least one baseplate snap-in device and the switch housing has at least one switch housing snap-in device such that the baseplate can be locked with the switch housing in at least two different positions.

Abstract: The invention relates to a fan device with at least one locking element for securing the fan device to a wall portion, in particular to an electrical enclosure wall, with a front and a rear face. The fan device is inserted into a front-face wall portion opening in a pressureless manner, and the locking element is movable in the direction of the rear face of the wall portion in the inserted state.

Abstract: A fan holder for a fan includes a frame that has an opening through which a gaseous medium flows during operation. The opening forms an accommodating region that is designed to accommodate various replaceable inserts, in particular a filter insert and a flap device, and has at least one retaining device for fastening the particular insert.

Abstract: A cooling and retaining body for holding heating elements, in particular PTC heating elements, having a heating-element holder, in which the heating elements are mounted. The heating element holder has a plurality of circumferentially distributed accommodating regions, in each of which at least one heating element is arranged, wherein the accommodating regions are formed between an outer part and an inner part, which is arranged in the outer part, and at least the outer part has a polygonal profile with a number of corners connected by sides, wherein the accommodating regions are arranged in the corners of the polygonal profile, and the sides of the polygonal profile are deformed elastically in order to generate a clamping force which acts on the respective heating elements.

Abstract: The invention relates to a heating device having a heating arrangement in a housing through which a fluid medium can flow in a longitudinal direction, wherein the at least one heating arrangement comprises at least two grid elements as heat exchanger plates with openings through which the medium flows, the grid planes of which are embodied for the exchange of heat energy between the plate and the fluid medium, at least one heating element, in particular a PTC element, arranged between the grid elements, wherein the at least one heating arrangement is arranged in the housing in such a way that the grid planes of the grid elements are arranged substantially perpendicularly to the longitudinal direction, so that the flow of medium is oriented substantially perpendicularly to the grid planes, wherein the grid elements and the at least one heating element are arranged braced relative to one another by means of at least one tensioning element so that they touch, and wherein the grid elements each have at least one

Abstract: A bimetallic controller, having a switching device and at least one bimetal device which is or can be actively connected to the switching device such as to allow the switching device to be switched in a temperature-dependent fashion. The bimetal device includes at least one first bimetal element and at least one curved second bimetal element that are connected to each other in a zone of contact and are designed in said zone of contact such that the coefficient of thermal expansion of the first bimetal element increases from its bottom to the top and the coefficient of thermal expansion of the curved second bimetal element decreases from its bottom to the top, or vice versa.

Abstract: The invention relates to a heating device having a heating arrangement in a housing through which a fluid medium can flow in a longitudinal direction, wherein the at least one heating arrangement comprises at least two grid elements as heat exchanger plates with openings through which the medium flows, the grid planes of which are embodied for the exchange of heat energy between the plate and the fluid medium, at least one heating element, in particular a PTC element, arranged between the grid elements, wherein the at least one heating arrangement is arranged in the housing in such a way that the grid planes of the grid elements are arranged substantially perpendicularly to the longitudinal direction, so that the flow of medium is oriented substantially perpendicularly to the grid planes, wherein the grid elements and the at least one heating element are arranged braced relative to one another by means of at least one tensioning element so that they touch, and wherein the grid elements each have at least one