Abstract: Disclosed is a device for the regulation of light transmission. In particular, switchable windows and methods for their preparation are disclosed. The switchable windows include electrically switchable devices which in one optical switching state are capable of portraying closed patterns or images without the need for providing complex electrical contacting.

Abstract: A housing for switchgear includes: first and second parallel side walls connected by a frame, a top wall, and/or a bottom wall; a door extending between the first and second side walls and arranged hingedly on the first side wall, a door hinge axis of the door being parallel to the side walls; and an instrument panel including a front face and third and fourth parallel side walls extending perpendicular from the front face. The door has an opening through which the third and fourth side walls of the instrument panel extend. The instrument panel is hingedly arranged on the door. An instrument panel hinge axis of the instrument panel is parallel to the door hinge axis. The instrument panel hinge axis is positioned adjacent to the second side wall.

Abstract: A housing for switchgear includes: first and second parallel side walls connected by a frame, a top wall, and/or a bottom wall; a door extending between the first and second side walls and arranged hingedly on the first side wall, a door hinge axis of the door being parallel to the side walls; and an instrument panel including a front face and third and fourth parallel side walls extending perpendicular from the front face. The door has an opening through which the third and fourth side walls of the instrument panel extend. The instrument panel is hingedly arranged on the door. An instrument panel hinge axis of the instrument panel is parallel to the door hinge axis. The instrument panel hinge axis is positioned adjacent to the second side wall.

Abstract: A circuit interrupter includes, a first contact and a second contact, the second contact being moveable relative to the first contact, a drive assembly structured to move the second contact relative to the first contact, and an erosion monitoring device including a linear transducer coupled to a portion of the drive assembly. The liner transducer is structured to generate an output signal representative of an amount of linear displacement of the portion of the drive assembly, wherein the erosion monitoring device is structured to monitor a degree of erosion of at least one of the first contact and the second contact based on the output signal.

Abstract: A circuit interrupter includes, a first contact and a second contact, the second contact being moveable relative to the first contact, a drive assembly structured to move the second contact relative to the first contact, and an erosion monitoring device including a linear transducer coupled to a portion of the drive assembly. The liner transducer is structured to generate an output signal representative of an amount of linear displacement of the portion of the drive assembly, wherein the erosion monitoring device is structured to monitor a degree of erosion of at least one of the first contact and the second contact based on the output signal.