lämpökytksets

Lämpökytkset, also known as thermal switches or thermal cutoffs, are temperature-sensitive electrical switches. They are designed to open or close an electrical circuit when a specific temperature is reached. This action is typically used for safety purposes, to prevent overheating or damage to electrical devices and appliances.

The most common type of lämpökytkset is a bimetallic strip. This strip is made of two different metals with different coefficients of thermal expansion bonded together. When the temperature rises, one metal expands more than the other, causing the strip to bend. This bending action can be used to push a contact open or closed, thus interrupting or completing an electrical circuit.

Lämpökytkset are widely used in a variety of applications. They can be found in hair dryers, toasters, coffee makers, electric motors, transformers, and many other household appliances and industrial equipment. Their primary function is to act as a safety device, cutting off power if the device overheats. Some lämpökytkset are resettable, either manually or automatically, while others are designed for a single use and must be replaced after they have tripped. The specific temperature at which a lämpökytkset operates is determined during its manufacturing and is crucial for its intended application.