| 摘要 |
An electrical contactor comprises a rectangular base carrying at least one pair of spaced fixed contacts. A movable support element carrying movable contacts is disposed on the base. A prismatic casing open at both ends is disposed on the base. A solenoid disposed within and supported by the casing comprises a movable armature having two parallel legs directed towards the base with their free ends resting on the movable support element. Two arms are hinged to the base near diagonally opposed corners of the base and have inwardly-directed projections arranged to engage diagonally opposed corners of the end of the casing remote from the base when the arms are pivoted against the casing. The inwardly-directed projections are provided with threaded holes. A cover plate can be superimposed over the end of the casing remote from the base and over the projections, the cover plate being provided with holes in register with the threaded holes when the arms are pivoted against the casing whereby screws can be passed through the holes and engaged within the threaded holes to lock together the above-mentioned parts of the contactor. The cover plate is provided with an aperture giving access to a push-button connected to the armature. One or more additional elements can be mounted on a side or sides of the casing to be locked between the base and cover plate. The additional member may be a cover element, an auxiliary switch/contact set assembly, or a structure for interconnecting the contactor and a juxtaposed, like contactor to prevent the two contactors from being operated at the same time. |
