A temperature-dependent switch which comprises a first and a second stationary counter contact and a temperature-dependent switching mechanism having a current transfer member. The switching mechanism, depending on its temperature, either closes the switch by pressing the current transfer member against the first and the second counter contact and thereby establishing an electrically conductive connection between the two counter contacts via the current transfer member, or opens the switch by keeping the current transfer member at a distance from the first and the second counter contact and thereby interrupting the electrically conductive connection. A closing lock is provided, which keeps the switch open when it has been opened for the first time. The closing lock comprises a spring washer which directly interacts with the current transfer member and mechanically locks the latter permanently when the switch has been opened for the first time so that the switch remains permanently open.

A temperature-dependent switching mechanism for a temperature-dependent switch, having a temperature-dependent bimetal snap-action disc, a temperature independent snap-action spring disc, an electrically conductive contact member to which the bimetal snap-action disc and the snap-action spring disc are captively held, so that the bimetal snap-action disc, the snap-action spring disc and the contact member form a switching mechanism unit captively held together, and a switching mechanism housing which captively holds the switching mechanism unit. The switching mechanism housing surrounds the switching mechanism unit from a first housing side, a second housing side opposite the first housing side, and a housing peripheral side extending between and transverse to the first and second housing sides. The switching mechanism housing is configured as an at least partially open housing and includes an opening on the first housing side through which the contact member is accessible from outside the switching mechanism housing.

A temperature-dependent switch comprising first and second stationary contacts and a temperature-dependent switching mechanism having a movable contact member. The switching mechanism, in its first switching position, presses the contact member against the first contact and thereby produces an electrically conductive connection and, in its second switching position, keeps the contact member spaced apart from the first contact and thereby disconnects the electrically conductive connection. The switch further comprises a closing lock that, as soon as it is activated, prevents the switch once having opened from closing again. The closing lock comprises a locking element having a shape-memory alloy and an opening through which the movable contact member protrudes. The locking element is configured to change its shape upon exceeding a locking element switching temperature and activate the closing lock, which holds the switching mechanism in its second switching position.

An overload protection device for a compressor motor and, more specifically, to an overload protection device for a compressor motor, which has an overload protection means and can thus more effectively prevent overload of the compressor motor.

A temperature-dependent switch has a first and a second stationary counter contact and a temperature-dependent switching mechanism with a contact member. The switching mechanism, in its first switching position, presses the contact member against the first counter contact and, in this case, produces an electrically conducting connection between the two counter contacts via the contact member. The switching mechanism, in its second switching position, holds the contact member at a spacing from the first counter contact. A closing lock is provided, which prevents the switch, once opened, from closing again. The closing lock locks the temperature-dependent switching mechanism permanently in the second switching position thereof in a mechanical manner.

A temperature-dependent switch having first and second stationary contacts and a temperature-dependent switching mechanism comprising a current transfer member and a temperature-dependent switching element. The temperature-dependent switching mechanism is configured to switch in a temperature-dependent manner between a closed state, in which the current transfer member is pressed against the first and second stationary contacts so that an electrically conductive connection is established, and an open state, in which the current transfer member is held at a distance from the first and second stationary contacts and, thus, the electrically conductive connection is interrupted. The current transfer member comprises a first section which, in the closed state, is pressed against the first and second stationary contacts, and a second section which projects from the first section and is integrally connected to the first section and which is passed through an opening provided in the temperature-dependent switching element.

An overload protection device for a compressor motor and, more specifically, to an overload protection device for a compressor motor, which has an overload protection means and can thus more effectively prevent overload of the compressor motor.

A breaker is provided with a first terminal piece on which a fixed contact is formed, a movable piece with a movable contact for pressing the movable contact against the fixed contact so as to contact therewith, a thermally-actuated element deforming with a change in temperature and moving the movable piece so that the movable contact is separated from the fixed contact, and a second terminal piece electrically connected to the movable piece. The movable contact includes a first movable contact and a second movable contact arranged at a first end portion and a second end portion, respectively, of the movable piece in its longitudinal direction. The fixed contact includes a first fixed contact arranged at a position with which the first movable contact can contact, and a second fixed contact arranged at a position with which the second movable contact can contact.

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.

A temperature-dependent switching mechanism for a temperature-dependent switch, having a temperature-dependent bimetal snap-action disc, a temperature independent snap-action spring disc, an electrically conductive contact member to which the bimetal snap-action disc and the snap-action spring disc are captively held, so that the bimetal snap-action disc, the snap-action spring disc and the contact member form a switching mechanism unit captively held together, and a switching mechanism housing which captively holds the switching mechanism unit. The switching mechanism housing surrounds the switching mechanism unit from a first housing side, a second housing side opposite the first housing side, and a housing peripheral side extending between and transverse to the first and second housing sides. The switching mechanism housing is configured as an at least partially open housing and includes an opening on the first housing side through which the contact member is accessible from outside the switching mechanism housing.