Abstract: A temperature-dependent switch arranged with a housing has a temperature-dependent switching mechanism comprising a snap-action disc, on which at least one outer contact region and at least one inner contact region are provided. A movable contact part held on the inner contact region interacts with a first contact surface connected to a first external connection on an upper part of the housing. The at least one outer contact region is connected at least in sections permanently to a second contact surface connected to a second external connection on a lower part of the housing. The snap-action disc lifts off the movable contact part from the first contact surface depending on the temperature of the switching mechanism. The snap-action disc has at least one compensation section between the at least one outer contact region and the at least one inner contact region.

Abstract: A temperature-dependent switch has a first and a second stationary counter contact and a temperature-dependent switching mechanism comprising a temperature-dependent snap-action disc bearing a contact element and having a geometric high-temperature configuration and a geometric low-temperature configuration, and a bi-stable spring disc with two geometric configurations with temperature-independent stability. The switching mechanism produces an electrically conductive connection between the two counter contacts via the contact element. The spring disc presses the contact element either against the first counter contact or keeps it spaced apart therefrom. The snap-action disc is supported with its rim on the switch during the switching and in the process the spring disc flips from its first stable configuration into its second stable configuration, in which it remains even when the snap-action disc flips back.