Abstract: A temperature-dependent switching mechanism is equipped with a bimetal snap-action disc and a spring snap-action disc, which carries a movable contact part, the bimetal snap-action disc and the spring snap-action disc being captively held in an annular frame.

Abstract: In a thermal protection circuit with two electrical connection terminals for an electrical device to be protected from overheating and at least one temperature-dependent switch, at least one electronic semiconductor switch for DC voltage is arranged.

Abstract: A temperature-dependent switch has a temperature-dependent switching mechanism arranged in a housing having an upper part and a lower part. A first contact area is arranged on an inner side of the upper part and a second contact area is arranged internally in the lower part. The switching mechanism comprises a current transfer element, a bimetallic snap-action disc and a movable contact area. The moveable contact area is connected to the current transfer element and interacts with the first contact area, the bimetallic snap-action disc lifting off the movable contact area from the first contact area depending on the temperature of the bimetallic snap-action disc. A resistance ring is arranged between the upper part and the lower part and is electrically in series with the current transfer element between the first and second contact areas when the switch is in its closed state.

Abstract: A temperature-dependent switch has a temperature-dependent switching mechanism, a housing accommodating the switching mechanism, two first connections between which first connections the switching mechanism makes or interrupts an electrically conductive connection depending on the temperature of said switching mechanism, and a heating resistor that is arranged on an outside of the housing and is connected electrically in series with the two connections. The heating resistor is a sheet-like metal part that is welded to the housing and carries a further connection.

Abstract: In a temperature-dependent switch having a switching mechanism that has a movable contact part which cooperates with a stationary counter contact and is moved by a spring part to which the movable contact part is electrically conductively connected, the switching mechanism produces an electrically conductive connection between the stationary counter contact and a second counter contact in a temperature-dependent manner. The switch is provided with an arc-shielding plate, which has no mechanical function, is arranged on an upper surface of the spring part and covers sections thereof.

Abstract: A thermal protection circuit has two electrical connection terminals for a device to be protected, and a temperature-dependent switch. The switch is provided with a temperature-dependent switching mechanism, two stationary contacts which are connected to the connection terminals, and a current transfer element, which is arranged on the switching mechanism. The current transfer element is moved by the switching mechanism and comprises two counter contacts, which are electrically connected to one another and in temperature-dependent bearing contact with the two stationary contacts. The thermal protection circuit is provided with a controllable semiconductor valve for AC voltage having two current terminals and a control input. Each of the two current terminals is connected to one of the connection terminals, and the control input is electrically connected to the counter contacts at the current transfer element via the switching mechanism at least when the temperature-dependent switch is closed.

Abstract: A temperature-dependent switch comprising a temperature-dependent switching mechanism having a snap-action disc, a housing having a lower part and an upper part which accommodates the switching mechanism, at least two stationary contacts provided on the inner surface of the upper part, each of which is connected to an outer connection, and a current transfer member arranged on the snap-action disc that is moved by said snap-action disc. The snap-action disc presses the current transfer member, in a temperature-dependent manner, against the two stationary contacts which serve as bearing areas for the current transfer member. A third bearing area for the current transfer member is provided on the inner surface. The current transfer member is an approximately round contact plate having on its surface facing the stationary contacts, a contact area closed in a circumferential direction around an axis of symmetry of the switch.

Abstract: A connection terminal for connecting two lines comprises two clamping blocks for receiving and electrically connecting the lines. A receptacle is provided on the connection terminal into which a temperature limiter having at least two terminal legs is insertable and into which two connection elements project, each connection element being connected at its first end to one of the two clamping blocks and being contacted at its second end to an associated terminal leg of an inserted temperature limiter.