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The contactor provided with means of self - protection against the effects of the repulsion forces between the contacts, and its association with a shut-off member and limitation of the currents of the short - circuit
The contactor provided with means of self - protection against the effects of the repulsion forces between the contacts, and its association with a shut-off member and limitation of the currents of the short - circuit
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机译:接触器具有自我保护装置,可防止触点之间的排斥力的影响,以及与切断元件的结合以及短路电流的限制
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摘要
A contactor capable of having a very high breaking power comprises a movable contact carrier bridge (3) having a central part in the form of a blade (3c) and conducting J-shaped pieces (2a-2b) supporting fixed contacts. A non-magnetic blade bent in the form of a U is mounted slidable inside a hollow movable insulating contact holder (1) and guides and holds at its upper end a magnetic plate (8) cooperating with said blade (3c) and forming an air-gap with another U-shaped magnetic piece (6), disposed between the legs of the bent blade (5) and integral (at 7) with the contact holder (1). A contact pressure spring (4) bears on the basis of the U-shaped magnetic piece (6) and on the bottom of the bent blade (5).
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