摘要:
A circuit breaker has at least two terminal contacts which are electrically connected within the circuit breaker via a switching contact; an electromagnetic tripping device which acts on the switching contact and the coil of which is connected between the at least two terminal contacts; and a bimetal element acting on the switching contact, wherein, in the circuit breaker, the electrical connection between the at least two terminal contacts bypasses the bimetal element, and the bimetal element is thermally coupled to the electromagnetic tripping device, and the bimetal element indirectly acts on the switching contact via an iron circuit or magnetic yoke of the electromagnetic tripping device.
摘要:
A shifting device has a contact which is fixed to the housing; a movable contact; a shift lock which has a latch and a latch support, the latch support having a latching point for latching the latch to the latch support; a manual shifting lever which is connected to the latch using a first bracket in order to contact the movable contact with the contact that is fixed to the housing; and a sudden disconnect mechanism for manually causing a sudden separation of the contacts, the manual shifting lever additionally having a second bracket such that an actuation of the manual shifting lever releases the latch connection between the latch support and the latch in order to separate the movable contact from the contact which is fixed to the housing.
摘要:
A frame for a switchgear cabinet has a plurality of interconnected frame profiled elements, and a method produces such a switchgear cabinet. At least two holders vertically spaced apart from one other and having cutouts for distribution busbars are arranged within the outer contour formed by the profiles. In an operating position, the holders are oriented along a vertical axis. The at least two holders are also movable, in particular rotatable, into a fitting position, however, in which the axis is at an angle to the vertical.
摘要:
A switching device has a first switching path having first switching contacts and has a second switching path having second switching contacts, wherein the first switching path has a first electromagnetic tripping apparatus having a first coil winding, wherein the first coil winding has a first winding direction, wherein the second switching path has a second electromagnetic tripping apparatus having a second coil winding, and wherein the second coil winding has a second winding direction. The first switching contacts and the second switching contacts are coupled for substantially simultaneous actuation. The first switching path and the second switching path are arranged adjacent to each other in the switching device. The first winding direction is opposite the second winding direction.
摘要:
A lock for a circuit breaker has a main body having a cutout to accommodate an actuating element of the circuit breaker. The lock has a projection which can be moved relative to the main body and can be brought into engagement with at least one opening/recess in the circuit breaker. To this end the projection is mounted in a slide which is displaceable relative to the main body and which slide extends obliquely relative to its direction of displacement and to the direction of displacement of the projection or has at least one such section.
摘要:
A frame for a switch cabinet has a plurality of frame profiled elements connected to each other. At least two retainers vertically spaced apart from each other, which have holes for distribution bus bars, are arranged within the outer contour formed by the profiled elements. In an operating position, the retainers are oriented along a vertical axis. An electrically insulating bottom plate is arranged at a first end of the distribution, bus bars, the bottom plate having a region of overlap with the distribution bus bars. The bottom plate is detachably supported in a retainer connected to the frame profiled elements.
摘要:
A residual current circuit breaker has a summation current transformer that has primary windings as well as a secondary and a tertiary winding, the secondary winding forming a circuit with an electronic trigger unit that is independent of the network voltage, and the tertiary winding forming a circuit with an electronic trigger unit that is dependent on the network voltage. The residual current circuit breaker may have an electronic control unit designed to actuate a switch upon predefinable actuation by the network voltage-dependent electronic trigger unit, and the switch, when in the actuated state, may interrupt contact of the secondary winding with the network voltage-independent electronic trigger unit and establishes contact of the tertiary winding with the network voltage-dependent electronic trigger unit.
摘要:
A switching device has a housing-mounted contact and a movable contact. The movable contact is provided for making contact with the housing mounted contact, The switching device has a switch lock with a latch and a latch support, wherein the latch support has a latching location for latching the latch to the latch support, wherein the switching device furthermore has a hand switching lever. A connecting rod is mounted movably on the latch support, the connecting rod bearing against a projection of the hand switching lever when the hand switching lever is arranged in the position in which the contacts are in contact. An actuation of the hand switching lever—for separating the movable contact from the housing-mounted contact—moves the connecting rod and thereby releases the :latching of the latching support to the latch.
摘要:
An arrangement for detecting arcs in an electric installation arrangement includes at least one first sub-network and a second sub-network. At least one first detector for measuring an electric variable and outputting a first measurement signal is arranged in the first sub-network, and at least one second detector for measuring an electric variable and outputting a second measurement signal is arranged in the second sub-network. The arrangement may have an arc-detecting device, and the first detector and the second detector may be connected to the arc-detecting device so as to transmit messages.
摘要:
A modular lighting system includes a mobile lighting unit and a stationary power supply network connection unit, wherein the lighting unit has at least one light source, wherein the lighting unit and the network connection unit have corresponding electrical contacts for electrical connection of the lighting unit to the network connection unit, wherein the network connection unit has electrical connections to connect the network connection unit to an electrical power supply network, wherein the electrical connections are formed as electrical connection terminals, and wherein the network connection unit has a rail mount for installation on a mounting rail of an electrical distribution system.