摘要:
A drive train is for a displaceable contact on a breaker contact arrangement in an electrical power breaker. A coupling element displaceable against a stop and arranged between the moveable contact and corresponding drive element is provided with an anti-bounce device, including a catch element and a counter piece. The catch element which may be swung into a catch position as a result of the inertia exerted on the centre of gravity thereof, when the coupling element strikes the stop, includes a working surface extending in the pivoting direction to forma momentary working connection with the counter piece. A retaining spring is additionally provided on the catch element to guarantee that a rebounding of the coupling element into the position corresponding to the close state of the breaker contact arrangement does not occur.
摘要:
The invention relates to a low voltage circuit breaker which comprises a contact system for a principal current and an arc extinction chamber. An are transmitting element is disposed between the contact system for the principal current and the arc extinction chamber. Said are transmitting element comprises at least one are guiding element which makes it possible to direct said arc in a certain manner to the arc extinction chamber.
摘要:
A latching mechanism is for locking a spring energy store of an electric switching device. The store is tensioned by a rotary drive and an extensible lever system. In the latching mechanism, the extensible lever system is locked with the spring energy store under tension by way of a support element, an auxiliary lock and a primary lock, in addition to a stop that is allocated to the primary lock. The auxiliary lock can be pivoted by the extension of the lever system and the position of the primary lock during the pivoting of the auxiliary lock can be influenced by working surfaces that are allocated to one another. To configure the locking mechanism for pivoting the primary lock in a manner which obviates the use of a return spring that acts on said primary lock, the auxiliary lock and the primary lock respectively have at least two working surfaces. In a first pivoting phase of the auxiliary lock, the respective first surfaces of the two sets of working surfaces lie adjacent to one another and in a second pivoting phase of the auxiliary lock, the second working surfaces lie adjacent to one another, intermeshing in the manner of a toothed gear.
摘要:
An arrangement includes at least two separate switch pole housings and a joining facility for joining the switch pole housings. In at least one embodiment, each of the switch pole housings forms an insulating enclosure of a switching space for receiving a single switch pole of an electric switching device which has a lower wall, an upper wall, two side walls, a rear wall and a front wall and in which at least a first one of the two switch pole housings has on a first one of the side walls, facing the second one of the switch pole housings, at least one recess for receiving at least one joining device of the joining facility. In order to reliably join the switch pole housings to one another whilst maintaining a preferred installation direction extending transversely to the front walls of the switch pole housings, in at least one embodiment the at least one recess forms a first undercut with respect to the first one of the side walls and a first locating surface in parallel with the front wall, the at least one joining device being constructed as contour element in such a manner that it engages behind the first undercut and is braced against the first locating surface, and the contour element having a receiving opening, extending in parallel with the first one of the side walls, for receiving at least one fastening device of the joining facility.
摘要:
A low-voltage circuit breaker has a contact arrangement, a drive mechanism for actuating the contact arrangement , and an actuating shaft, which is used for transmitting a drive force from the drive mechanism to the contact arrangement. A bearing device for the actuating shaft has at least one bearing body, which is connected to a pole component accommodating the contact arrangement. Thus a unit is formed, which can be tested independently of the other components of the circuit breaker. In the case of multipole circuit breakers, a common actuating shaft is used for all contact arrangements and pole components, which is mounted approximately in the center of the main bearing body and near the ends of the auxiliary bearing bodies.
摘要:
An arrangement including at least two separate switch pole housings and a joining facility for joining the switch pole housings. Each of the switch pole housings forms an insulating enclosure of a switching space for receiving a single switch pole of an electric switching device. A side wall of a first switch pole housing, facing a second one of the switch pole housings, includes at least one recess for receiving at least one joining device of the joining facility. The at least one recess forms a first undercut with respect to a side wall and a first locating surface in parallel with a front wall of the housing. The at least one joining device engages behind the first undercut and is braced against a first locating surface.
摘要:
A multipole electrical switching device is disclosed with an outer housing in which at least two separate switching pole housings are accommodated. In at least one embodiment, the at least two separate switching pole housings on walls facing towards one another, each have a least one mounting which form a mounting pair assigned to one another. In at least one embodiment, for mechanical connection of the at least two separate switching pole housings, the mounting pair is assigned at least one connection device which engages into the two mountings forming the mounting pair. The two mountings forming the mounting pair, in relation to a dividing joint formed between the two facing walls, each form an undercut, whereby the at least one connecting device engages behind the undercuts and the at least one connecting device is formed in a primary process in one piece on the outer housing.
摘要:
A switching device has a closing device and a traversing mechanism for insertion and retraction relative to an insertion frame, where the said devices can be operated only in the OFF state of the switching device. A blocking bar having a cam element that cooperates with a carrier of an OFF operator is guided by elongated holes behind an operator's console of the switching device. The carrier and the cam element work together in such a way that the OFF operator can be pulled inward when the blocking bar is operated, thus signaling to the user that the switching device is locked in the OFF state.
摘要:
A switching device include at least two switching poles. Each of the switching poles has one current path and one switching contact system for opening and closing the current path, wherein a movable contact arrangement of the switching contact system of the switching poles has an integral switching shaft segment, formed from insulating material, which bears a contact lever arrangement and in which the switching shaft segments of adjacent switching poles are connected by way of at least two connecting branches; so as to form the switching shaft. The connecting branches extending at a distance parallel to the axis of rotation and are formed from corresponding connecting elements. In at least one embodiment, all of the connection elements of the at least two connecting branches are formed by first sections of the integral switching shaft segments, which bear the contact lever arrangements.
摘要:
A switching device include at least two switching poles. Each of the switching poles has one current path and one switching contact system for opening and closing the current path, wherein a movable contact arrangement of the switching contact system of the switching poles has an integral switching shaft segment, formed from insulating material, which bears a contact lever arrangement and in which the switching shaft segments of adjacent switching poles are connected by way of at least two connecting branches; so as to form the switching shaft. The connecting branches extending at a distance parallel to the axis of rotation and are formed from corresponding connecting elements. In at least one embodiment, all of the connection elements of the at least two connecting branches are formed by first sections of the integral switching shaft segments, which bear the contact lever arrangements.