Multi-pole or multi-phase electrical wiring devices that incorporate clamp-type wire termination assemblies are described. The electrical wiring devices include multi-pole motor switches. The electrical wiring devices include a plurality of wire termination assemblies. Each wire termination assembly includes a wire terminal and an activating member.

A circuit board connecting terminal for connecting electrical conductors to a printed circuit board, having a contact insert that has a contact part and a clamping spring, wherein an electrical conductor inserted into the circuit board connecting terminal can be clamped against the contact part with the clamping spring. The circuit board connecting terminal has a connection element for joining the circuit board connecting terminal. Also, a contact part for a circuit board connecting terminal and a printed circuit board having a circuit board connecting terminal are provided.

A conductor connecting module including an insulating housing and a contact insert arranged in the insulating housing. The contact insert having a busbar and a clamping spring. A contact element having a solder connection contact surface is arranged on the busbar and the solder connection contact surface is able to be soldered on a printed circuit board. The busbar a frame-shaped busbar that has a contact section and a holding section, which are formed opposite each other. The contact section and the holding section are connected to each other via a connecting section. The clamping spring has a contact leg for contact with the holding section and a clamping leg, the clamping leg and the contact section forming a clamping point for the electrical conductor to be clamped. At least one contact element is arranged on the holding section and/or on the connecting section and/or on the contact section.

An electrical contact limiter structure of wire connection terminal has a simplified structure and is easy to operate to enhance the stability of the operation and motion of a metal leaf spring. The wire connection terminal includes conductive components mounted in the insulation case and electrical contact assembled with the conductive components. The electrical contact has a limiter for receiving the metal leaf spring and restricting moving path thereof. The limiter is partitioned into at least one space. A limitation mechanism is assembled with the limiter. The metal leaf spring is mounted in the space. The wiring circuits or conductive wires coming from an apparatus can be easily directly plugged into the space of the limiter to insert with the metal leaf spring. The limiter and the limitation mechanism cooperatively prevent the metal leaf spring from being deflected and over-bent and damaged in operation.

A connector for connecting control conductors provided in conduits also containing power conductors, the connector including a first guide for receiving a first at least one control conductor provided in a first conduit also containing at least one power conductor, a second guide for receiving a second at least one control conductor provided in a second conduit also containing at least one power conductor, at least one jumper for electrically connecting the first at least one control conductor and the second at least one control conductor and a housing for containing the first guide, second guide and the at least one jumper.

A conductor terminal having at least one insulating material housing; at least one contact insert arranged at least partially in the housing and having at least one contact piece and at least one clamping spring. The contact piece, together with the clamping spring, forms at least one conductor clamping point for an electrical conductor to be contacted via the conductor terminal, which electrical conductor can be acted upon by a spring force of the clamping spring. At least one actuating lever is pivotably supported in the housing for actuating the clamping spring. The actuating lever can be pivoted from a closed position to an open position and vice versa in relation to the housing and/or the contact piece and an electrical conductor inserted into the conductor terminal is not acted upon by the spring force of the clamping spring at the conductor clamping point at least in the open position.

A coupling arrangement 10 for reversibly mechanically and electrically coupling a terminal connector 200 to a circuit board arrangement 100 comprising, the circuit board arrangement 100, which contains a circuit board 110 and a connecting element 120 being mechanically connected to the circuit board 110. Hereby the connecting element 120 comprises at least one connecting unit 121, wherein each connecting unit 121 comprises a first electrical connection point 124 being electrically connected to the circuit board 110. Moreover, the coupling arrangement further contains the terminal connector 200 comprising at least one terminal connector unit 210 and a housing 205 for carrying the at least one terminal connector unit 210. In a mechanical connection state of the terminal connector 200 and the circuit board arrangement 100, the respective terminal connector units 210 and connecting units 121 are coupled, providing an electrical connection of the terminal connector 200 and the circuit board 110.

An operable wire connector comprises an insulating housing (1), an operating handle (2) rotatably mounted inside the insulating housing (1), a transmitting piece (3), an electric conductor (4), an elastic clamping piece (5) with a fixed portion (51) connected to the electric conductor (4) and an elastic free portion (52) resisted by the transmitting piece (3), and a cover (6) assembled with the insulating housing (1); an adjustable gap is formed between the elastic free portion (52) and the electric conductor (4) for receiving a wire, and the gap will continuously be present due to the action of a rotation limiting portion (12). The operating handle (2) is pulled reversely, so that the wire comes into contact with the electric conductor (4); when the user pulls and turns up the operating handle (2) again, there is no need to continuously use force, and the wire will be take out easily.

The invention relates to a transformer terminal comprising: an insulating housing which has an integrally designed main body (1) and a cover (2) which can be detachably mounted on the main body (1); a mounting device which is formed on the insulating housing and is designed to mount the insulating housing on a transformer, a first electrical conductor connection (4) for a first potential, comprising a first electrical connection assembly (8) having a first bus bar (8a); a first spring-force clamping connection which is formed on first bus bar (8a) and is designed to clamp a first conductor for electrical connection to the first bus bar (8a); and a first winding wire connection (8c) for electrically connecting a first winding wire of the transformer to the bus bar (8a), the first winding wire connection (8c) being integrally moulded on the first bus bar (8a); and a second electrical conductor connection (5) for a second potential, which is different from the first potential, the first and second electrical conductor connections (4, 5) being electrically insulated from one another, the second electrical conductor connection comprising a second electrical connection assembly (9) tuning a second bus bar (9a); a second spring-force clamping connection (9b) which is formed on the second bus bar (9a) and is designed to clamp a second conductor for electrical connection to the second bus bar (9a); and a second winding wire connection (9c) for electrically connecting a second winding wire (9c) of the transformer to the bus bar (9a), the second winding wire connection (9c) being integrally moulded on the second bus bar (9a). The first electrical connection assembly (8) is arranged in a first installation space which is formed on the main body (1) in the region of a lateral face and has a first mounting opening toward said lateral face, and the second electrical connection assembly (9) is arranged in a second installation space (10b) which is formed on the main body (1) in the region of an opposite lateral face and has a second mounting opening (19b) toward said lateral face, the second installation space being separated front the first installation space.

A terminal block includes an insulating casing defining a recess receiving a conductive bar and a retaining spring. The conductive bar includes a base portion, a support leg attached to the base portion and a cooperating leg attached to the base portion. In a mounted position of the conductive bar and the retaining spring within the recess, the support leg engages with a support part of the retaining spring, and the cooperating leg is positioned to engage with a conductor inserted into a plug of the terminal block.