In an embodiment, an article comprises a plurality of structural units, wherein each structural unit comprises a first portion; a second portion; wherein the second portion contacts the first portion; and a third portion; wherein the third portion is in communication with the first portion and the second portion and is more compressible than the first portion and the second portion; where the first portion has a first value of a property and where the second portion has a second value of the same property, such that the first value acts as a restraining or enhancing force on the second value; wherein the first portion comprises a first metal and wherein the second portion comprises a second metal that is different from the first metal.

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 bimetallic controller, having a switching device and at least one bimetal device which is or can be actively connected to the switching device such as to allow the switching device to be switched in a temperature-dependent fashion. The bimetal device includes at least one first bimetal element and at least one curved second bimetal element that are connected to each other in a zone of contact and are designed in said zone of contact such that the coefficient of thermal expansion of the first bimetal element increases from its bottom to the top and the coefficient of thermal expansion of the curved second bimetal element decreases from its bottom to the top, or vice versa.

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 solid state circuit breaker includes at least one power device and a control circuit configured to detect a fault and further configured to control operation of the at least one power device to open and electrically disconnect a power source from a load. Further, the solid state circuit breaker includes at least one fail-open device.