Abstract: A holder (6), which is suitable in particular for luminaires which do not provide any direct manual access to the capped lighting means, has a slide by means of which the lamp cap and/or the contact pins thereof can be pushed out of the holder or at least released from the holder. In the case of a preferred embodiment, the holder housing (8) is designed in two parts, the housing part (9) being designed as the slide.

Abstract: A lamp holder is provided comprising a housing, a contact pin retainer arranged within the housing, a rotary member rotatably mounted in the housing and a fastener for fastening the rotary member to the housing. The contact pin retainer is adapted to receive a lamp contact pin. The rotary member comprises an insertion slot, a front shield, and a slotted pivot section extending away from the front shield and into the housing The fastener includes a retaining pin fixed to the housing and penetrates a bearing opening provided in an end section of the slotted pivot section.

Abstract: In an externally controlled electronic ballast, a driving circuit which requires a dedicated supply voltage is provided for the purpose of driving an inventor half bridge. The driving circuit is constructed such that the inventor half bridge blocks when the supply voltage V.sub.cc falls below a threshold value UVLO. Via a self-holding controllable electronic switch and a Z diode DZ2, a voltage monitoring circuit draws the supply voltage V.sub.cc below the threshold value UVLO when an excessively high lamp voltage is detected. The ballast is thereby inactive. A current sensing path which leads via at least one filament of the low-pressure gas discharge lamp serves to detect a change of lamp. The current sensing path controls a further electronic switch, which is likewise connected to the supply voltage V.sub.cc of the driving circuit and can, when it conducts, draw said voltage further to frame than the first switch.

Abstract: An electronic ballast is provided for the operation of one or more gas discharge lamps. The electronic ballast has at least one inverter half bridge and a driving circuit that prescribes the inverter frequency. In the event of overvoltage across a gas discharge lamp, the driving circuit is brought into a locking state in which it blocks the inverter half bridge. This is performed via a circuit resembling a thyristor, which reduces the supply voltage of the driving circuit below a predetermined value. Provided for the purpose of unlocking and restarting the driving circuit is a detector circuit which detects the insertion of a new gas discharge lamp into its respective holder. This is accomplished by pinpoint detection of a steep pronounced voltage rise at a terminal of a gas discharge lamp which is connected to the intermediate circuit voltage via the filament of the gas discharge lamp.

Abstract: An easily assembled socket, particularly for elongated lamps such as fluorescent lamps for use with, or without associated starters, which can be wired by automatic wiring machinery. A socket housing (2) of insulating material has reception chambers (33, 48) for receiving the blade part (57) of an slit blade insulation piercing (SBIP) connector portion (53) of a contact spring (49). The connector portion (53) extends to a connecting element portion (52) which, in turn, terminates in a contact terminal end portion (51) for engagement with a projecting terminal pin of the electrical device. The contact spring (49) is a unitary element, which can be slipped into the reception chamber (33, 48) via a lateral opening (44). Wire positioning recesses (24, 25, 34, 35) are formed in the housing leading to and from the chambers (33, 48).

Abstract: An electrical clamping terminal arrangement with an IDC contact located in a housing of insulating material is formed, in particular for use in an automatic wiring, in such a way that the housing, on at least one side adjoining the introduction slit of the IDC contact, has a slitlike or groovelike indentation opening toward the introduction side for the conductor. The dimensions of this indentation are chosen such that a free end, located in the vicinity of the IDC contact, of a line contacted in the IDC contact is received in the indentation in a shock-hazard-proof manner.

Abstract: To permit easy connection, and further to provide an electrical connection between a conductor and an electrically conductive device, for example, a base plate of a large fixture, a housing (4) of insulating material which has a contact element therein, and a flat surface (9) adapted to be placed against the device (7), is further formed with a metallic strip (28) electrically connected to the contact element (5). The metallic strip is formed with a bend or crease line (34) separating the strip into a neck portion (31) and a hook portion (36). The neck portion and the hook portion, together with the insulated housing (4), form a lever (48) in which the hook portion, upon insertion thereof through an aperture (45) in the flat surface of the device passes beneath and becomes located under the flat surface, engaging thereagainst and being supported therefrom, to permit at least part of the neck portion (31) to be passed, by lever action, through the aperture (45).

Abstract: An electrical connection terminal arrangement has a housing (1) of insulating material, in which at least one slit-blade insulation-piercing contact is located that is formed on a contact spring (17). The contact spring is additionally provided with at least one plug contact (27) and one apparatus connection contact (29).

Abstract: An electrical terminal or coupling connector with two spatially separated terminal connections for electrical conductors and having contact elements assigned to the connections comprises at least two parts (2, 3), each of which has at least one connection part (14, 16), and which are positively joined together to make a single unit. At least one connection (18) of this single unit is in the form of a slit-blade insulation piercing connector arranged for automatic wiring. At the same time, the single unit has devices (50, 51) for positive coupling with other single units of the same or different function.

Abstract: An electrical connection terminal arrangement has a housing (1) of insulating material, in which at least one slit blade insulation-piercing contact is located that is formed on a contact spring (17). The contact spring is additionally provided with at least one plug contact (27) and one apparatus connection contact (29).

Abstract: Wiring of terminals of electrical apparatus or apparatus systems (4, 5, 7) is done automatically in the course of the direct wiring. A preassembled electrical apparatus or apparatus system is made available with terminals (9, 10, 11) fixedly located in it, whereupon by means of an automatically guided line-laying tool (59), an endlessly supplied line (68) is moved into the contacting zones of the specially formed terminals, fixed there, and either clipped or through-wired.

Abstract: A wire retaining for connecting wires in low-voltage circuits of electrical apparatus has a continuous channel (5), formed on a shaped part, for receiving the wires. The channel is designed for the passage through it over its length of a wire placement tool protruding through its lateral wire insertion opening and moving in the longitudinal direction of the wire; legs (3) laterally defining the channel, and/or wire hold-back devices (7), are embodied as predominantly spring-elastically yielding to the tool passing through.

Abstract: An electric connection structure for at least one electric device has slit blade insulation piercing connectors (5) and additional plug connectors (31) for connecting conductive parts.

Abstract: To permit close positioning of a wire positioning finger (2) adjacent a slit blade insulation piercing connector, a pressing element (19) having a pressure surface (22) is movably located adjacent a wire outlet opening (10) of a wire guide duct (4) in the positioning finger. The pressing element (19) is movable, preferably longitudinally slidable on the finger, for movement transverse to the axis of the wire outlet opening between a quiescent position removed from the wire opening and a holding position to hold the wire (5) preparatory to cutting it off. A cutting knife (12) is movably located on the positioning finger (2), preferably slidable longitudinally, in the vicinity of the wire outlet opening (10) and movable between a rest position and cutting position in front of the wire opening. Respective pressing element control units (21) and knife operating control units (13) are provided, coupled to the pressing element (19) and to the knife (12) for programmed movement of the respective elements.

Abstract: To permit easy insertion and removal of a compact fluorescent lamp (2) in and from a socket, the socket is formed with a body (3) having an engagement surface wall (5) from which a shelf (4) projects bounded by side walls (22, 23) to define a base reception cavity (25). The engagement wall (5) is formed with slits (11) to permit terminal pins (13) from the lamp to pass therethrough, for engagement with electrical terminal contacts (T). The lamp is held in position by a resilient catch or latch or snap-over element (14) movably mounted on the engagement wall (5), for example by being molded on a separated strip portion (15) forming a resilient holder, and projecting from the engagement wall (5), to snap over the end portion of a base (35) of the lamp, when inserted. To release the lamp, the catch can be bent backwardly. Holding projections (30) on the shelf lock the lamp in position.