Abstract: A plug connector for a circuit board connection possesses a plug strip and a plug part that includes a socket housing projecting on the plug side. The socket housing possesses a generally rectangular basic cross section with longitudinal sides opposite each other on both sides, and a face side located between them. Insertion guide holes with adjacent plug receptors for contact pins are located on this face side, such pins being positioned on the plug strip with matching alignment. In order to be able to join the plug part and the plug strip along at least two insertion directions offset from each other by 90°, and to ensure a solid mechanical connection of the plug part independent of insertion direction, first the plug strip is formed as an angle strip with a first strip shoulder and a second strip shoulder perpendicular to it, and the contact pins are mounted either on the first or on the second strip shoulder.

Abstract: A shield connection between a pc-board for electrical and/or electronic components located in a housing and at least one connector socket located in a wall of the housing with a metal cylindrical socket casing that passes through the housing wall includes a receiving device for a plug with a corresponding metal coupling component, which is electrically connected with the shield of a cable connected to the plug. To create a shielded connection, the shield potential is automatically distributed further by the connection to the housing The shield connection consists of a metal ring-shaped shield element, which includes contact pins for the electrical and mechanical connection with the pc-board. The contact pins each protrude from the ring plane on the one ring side, with the spring tongues protruding on the other side of the ring for electrical and mechanical contact with the socket casing.

Abstract: An electrical supply or connecting terminal with a clamping spring and a metal part located in an insulating housing having a conductor inlet opening for an electrical conductor. The clamping spring has a clamping leg and a contact leg, and the clamping leg and the metal part form a spring force clamp connection for the electrical conductor. The contact leg of the clamping spring is arranged essentially perpendicular to the insertion direction of the electrical conductor and a recess is formed in the contact leg for insertion of the electrical conductor. The clamping leg and the contact leg of the clamping spring are bent toward one another with the end of the clamping leg extending through the recess. The metal part has at least one mounting section inserted through the recess of the clamping spring in a direction opposite the insertion direction of the electrical conductor.

Abstract: An electrical terminal includes an insulating housing, a conductor bar, strain-relief clamp connections and actuating elements located in the insulating housing for opening and closing the strain-relief clamp connections. The electrical terminal enables simple manual opening of the clamping site even when the strain-relief clamp connection is designed for leads with large cross section since the actuation element is made as an actuating cam that is eccentrically supported in the insulating housing. The actuating cam can be pivoted by an actuating tool out of a first position in which the strain-relief clamp connection is closed into a second position in which the strain-relief clamp connection is opened so that an electric lead can be inserted between the conductor bar and a through opening in the strain relief clamp connection.

Abstract: A cooling element for heat dissipation in one or more electronic components includes a metal element with one or more slit-shaped receiving openings for one or more electronic components that are to be cooled. In its lengthwise extension, each receiving opening has a receiving bore that holds a helical spring and that runs parallel to the lengthwise extension. The receiving bore is arranged in such a way that it is open on the lengthwise side towards the receiving opening and the spring placed in it projects with a radial partial section into the receiving opening that holds the electronic component. As a result, in partial areas, the spring presses the electronic component against the inner wall of the receiving opening that lies opposite from the spring, thus establishing thermal contact.

Abstract: Abstract A combination circuit board and clamping device includes a circuit board having a conductor strip that conducts electrical voltage. A connection for a shielded cable with a device to clamp the cable sheath is provided on the circuit board. This device is in contact with the conductor strip carrying the electrical voltage. The clamp device for the cable sheath consists of a contact piece with a metallic base plate and clamp springs that project on one side and are separated from one another, between which the cable insulated up to the cable sheath is received. The circuit board includes pass-through apertures into which to insert these clamp springs, and the contact piece with the cable end secured between contact springs is attached to the circuit board by means of a cable binder, for whose proper positioning the circuit board includes openings.

Abstract: An overvoltage protection means having a first electrode (1), a second electrode (2), a breakdown spark gap between the two electrodes (1, 2), and a housing (3) which holds the electrodes (1, 2). When the breakdown spark gap is ignited, an arc (4) is formed between the two electrodes (1, 2) within the discharge space (5) which connects the two electrodes (1, 2). The overvoltage protection arrangement has an especially high line follow current extinguishing capacity, but can nevertheless be easily built, and the discharge space (5) is made such that it runs at least partially transversely and/or opposite the direction of the electrical field of the prevailing line voltage so that the distance to be overcome by the arc (4) between the two electrodes (1, 2) has a transverse component relative to the electrical field.

Abstract: A connection device for connecting an optical fiber to an electrical device has a housing, a cable gland, and a plug for insertion into the corresponding socket of the electrical device, the housing having a cable passage for insertion of the optical fiber, the plug being held at least partially in the housing and being connectable to the fibers of the optical fiber which has been inserted into the cable passage. The housing has a first housing part for holding the plug and a second housing part for connection to the cable gland. The first and second housing parts are connectable in a manner enabling them to be axially moved relative to each other in the connected state by an extent defmed by at least one stop on the second housing part that is engageable with at least one opposing stop on the first housing part.

Abstract: For determination of the bandwidth of optical fibers, the invention proposes a method which comprises the injection of light at a first optical power level and at a first frequency into an optical fiber, as well as the measurement of a first signal level as a function of the optical power level of the light passing through the fiber at the first frequency, the injection of light at the second optical power level and at a second frequency into the optical fiber, the measurement of a second signal level as a function of the optical power level of the light passing through the fiber at the second frequency, and the determination of the bandwidth of the fiber as a function of the first and second optical power levels and/or of the measured first and second signal levels using a predetermined rule which describes the frequency-dependant attenuation response of the fiber.

Abstract: An electrical connecting terminal with a connecting terminal housing has on its wide side a housing wall and bus bars running one above the other are disposed in the housing configured for connecting conductor connections arranged on opposite sides of the connecting terminal housing. The conductor connections are arranged laterally offset to each other in the longitudinal direction of the bus bars. The bus bars are connectable to each other by mean of an electrical component. To ensure that uncurved plates with the simplest geometry can be used as potential connectors between two bus bars arranged one above the other, at least one bus bar is curved in its course between the conductor connections in the direction of the housing wall.

Abstract: A housing arrangement with at least two junction boxes, a base part and a cover, the junction boxes each having a square housing with a terminal strip for electrical connection of an electric cable or a line, and at least two openings for electric cables or lines. The housing arrangement can be modularly built and variably adapted to different requirements since the individual junction boxes can be mounted on top of one another turned by 0°, 90°, 180° or 270° relative to one another. The terminal strips are connectors which can be mounted in a junction box in any of four positions which are turned by 90° relative to one another, and the connectors of two junction boxes which are mounted on top of one another can be connected to one another with the plug part of one connector can be inserted into the socket part of the other connector.

Abstract: A shield connection between a pc-board for electrical and/or electronic components located in a housing and at least one connector socket located in a wall of the housing with a metal cylindrical socket casing that passes through the housing wall includes a receiving device for a plug with a corresponding metal coupling component, which is electrically connected with the shield of a cable connected to the plug. To create a shielded connection, the shield potential is automatically distributed further by the connection to the housing The shield connection consists of a metal ring-shaped shield element, which includes contact pins for the electrical and mechanical connection with the pc-board. The contact pins each protrude from the ring plane on the one ring side, with the spring tongues protruding on the other side of the ring for electrical and mechanical contact with the socket casing.

Abstract: An electrical connecting device with a housing, with terminals for insulated conductors, with at least one conductor bar, with at least two actuating elements and with at least two insulation piercing elements, the actuating elements being arranged to be able to turn relative to the insulation piercing elements and each having a conductor receiver for the conductors to be connected. The insulation piercing elements establish electrical contact of a conductor which has been inserted into the conductor receiver to the conductor bar, when the actuating element is pivoted out of a first position, in which the conductor can be inserted into the conductor receiver into a second position. By the conductor receiver being able to have at least two insulated conductors can be inserted therein, the possible applications are further enhanced, and the dimensions of the connecting device can be as small as possible.

Abstract: A cooling element for heat dissipation in one or more electronic components includes a metal element with one or more slit-shaped receiving openings for one or more electronic components that are to be cooled. In its lengthwise extension, each receiving opening has a receiving bore that holds a helical spring and that runs parallel to the lengthwise extension. The receiving bore is arranged in such a way that it is open on the lengthwise side towards the receiving opening and the spring placed in it projects with a radial partial section into the receiving opening that holds the electronic component. As a result, in partial areas, the spring presses the electronic component against the inner wall of the receiving opening that lies opposite from the spring, thus establishing thermal contact.

Abstract: An electrical connecting terminal with a connecting terminal housing has on its wide side a housing wall and bus bars running one above the other are disposed in the housing configured for connecting conductor connections arranged on opposite sides of the connecting terminal housing. The conductor connections are arranged laterally offset to each other in the longitudinal direction of the bus bars. The bus bars are connectable to each other by mean of an electrical component. To ensure that uncurved plates with the simplest geometry can be used as potential connectors between two bus bars arranged one above the other, at least one bus bar is curved in its course between the conductor connections in the direction of the housing wall.

Abstract: An electrical connection arrangement for electrical connection of an electrical device with a bottom part for holding at least one device-side cable, with a top part for holding at least one connection-side cable and with a contact body for electrical connection of the device-side cable to the connection-side cable, the bottom part and the top part being formed essentially of an electrically insulating material. The connection is improved in that at least one fastening device for fastening at least one device-side cable is formed in the bottom part, that the contact body is located in the top part and has a first contact device and a second contact device, and that, in the joined position of the bottom part to the top part, the contact body makes contact with the device-side cable with the first contact device and makes contact with the connection-side cable with the second contact device.

Abstract: A plug-in jumper for terminal blocks is provided for elastic engagement in openings in busbars and for electrical contact-making of the busbars of at least two junction and/or connecting terminals. The plug-in jumper includes a jumper bar having a bar strip and several plugs which are connected to the bar strip. Each plug has at least two contact legs located essentially parallel to one another, of which at least one is made elastic. The plug-in jumper makes it possible to electrically interconnect different busbars of different terminal blocks since the plugs have two contact areas which are located on top of one another for contact-making of two busbars of two junction and/or connecting terminals which are located next to one another, wherein the two busbars are located on a different planes.

Abstract: The invention relates to an electronic power supply device, particularly a switched-mode power supply, for supplying power to a low-voltage load protected by a protective device, and to a method therefor. The invention also relates to a device for protecting a low-voltage load against an excess current and to an auxiliary power supply device for use with such a protection device. The conceptual core of the invention can be seen in providing measures which ensure that after a fault has been detected, for example a short circuit at the output, a current is supplied for a short period, for example 15 ms, which is of such a magnitude that a protective device can be reliably and quickly tripped. The period for this is selected in such a manner that electronic components, connected loads and feedlines are not damaged and destroyed.

Abstract: The present circuit arrangement allows data, which are necessary for building up fault-tolerant structures, to be transmitted on standard ring-shaped bus systems. Its implementation requires a monitoring unit and input and output units which transmit or receive data for control. The circuit arrangement handles the task of detecting any faults which can become a danger for the process within a machine or plant. Due to its internal configuration, the circuit arrangement identifies any fault even before the detection of the fault and initiates a protected switch-off. In this arrangement, it is of no importance whether it is the external control unit or the bus system used which is responsible for the fault.

Abstract: In order to improve the mutual integration of components which control or are controlled via a fieldbus protocol with other components which can be networked using an Ethernet network, the invention provides an installation having a plurality of components which are connected to one another via an Ethernet network, with at least a first of the components having a device for reading data that is intended for that component from a sum frame by means of a sum frame protocol, as well as a device for reading the sum frame from the data part of an Ethernet MAC frame, with at least one of the components of the installation having a device for embedding the sum frame in the data part of an Ethernet MAC frame, and having a device for transmission of the Ethernet MAC frame via the Ethernet network, and with at least one of the components having a device for insertion of an identifier into the Ethernet MAC frame, which identifier indicates whether the data part of the Ethernet MAC frame contains a sum frame.