A temperature-dependent switch (10) has, on the outside on its housing, a first and at least a second connecting surface (22, 23) for directly connecting feed lines and, in the housing, a temperature-dependent switching mechanism, which depending on its temperature produces or opens an electrically conducting connection between the two connecting surfaces (22, 23). The feed lines are directly connected, at their inner ends (27, 28), to the connecting surfaces (22, 23), the switch (10) being encased by an insulating protective layer (32), and the feed lines, at their free ends (29, 31) which are remote from the inner ends (27, 28), are free of the protective layer (32). The feed lines are in the form of connecting lugs (25, 26), which are connected in material-connecting engagement, at their inner ends (27, 28), to the connecting surfaces (22, 23) and, at their free ends (29, 31), are directly forms as plug-type connections. The insulating protective layer (32) is configured such that it brings about a structurally stable connection between the housing, the connecting surfaces (22, 23) and the inner ends (27, 28) of the connecting lugs (25, 26).