A spring-loaded terminal contact (3) for contacting electrical conductors having at least one busbar (7) and having at least one clamping spring (9) which has an abutment member (10), a clamping member (12) and a curved resilient member (11) which is arranged between the abutment member (10) and the clamping member (12) is described. The clamping member (12) extends in the direction toward the busbar (7) and has a resilient clamping edge (8) for clamping an electrical conductor which is introduced between the clamping member (12) and the busbar (7) in a conductor insertion direction (L). The busbar (7) has a clamping edge (6) which together with the resilient clamping edge (8) forms a clamping location for the electrical conductor which is intended to be clamped. The busbar (7) has a groove-like recess (14) in the conductor insertion direction (L) upstream of the clamping location adjacent to the clamping edge (6).

A screwless terminal block allows easy insertion and removal of a wire. A housing (2) includes a fixture insertion opening (23) through which a rod-like fixture (6) is inserted to come in contact with a contact pressure spring (4) and deform the spring (4) away from a wire (5). When the fixture (6) is inserted through the fixture insertion opening (23), an acute angle of 45° or less is formed by an axis of the fixture (6) and a straight line connecting a contact point A between the housing (2) and a part of the fixture (6) adjacent to the wire insertion opening (24) and a contact point B between the housing (2) and a part of the fixture (6) adjacent to the spring (4) at a cross-section taken along a plane including the axis of the fixture (6) and parallel to a pressing direction of the spring (4).

The present invention is directed to a resilient force clamping connection (2) for a terminal block (1), in particular a connection terminal or connecting terminal, so as to electrically connect at least one conductor, said resilient force clamping element comprising a busbar (3), and a clamping spring (4) having a support limb (40), a resilient bend (41) that adjoins the support limb (40), and a clamping limb (42) that adjoins the resilient bend (41), wherein the clamping limb (42) comprises at a free end (420) that is remote from the resilient bend (41) a clamping section (421) so as to form a conductor clamping site (K) between the clamping section (421) and the busbar (3) so as to electrically connect a conductor (L) to the resilient force clamping connection (2). At least one actuating limb (43) extends from the clamping limb (42) between the resilient bend (41) and the free end (420) in a direction away from the support limb (40), wherein the actuating limb (43) comprises an actuating section (430) in order to cooperate with a release element (5) so as to open the conductor clamping site (K). The present invention is further directed to a terminal block (1) so as to electrically connect at least one conductor, said terminal block comprising an insulated housing (6) and at least one resilient force clamping connection (2) according to the present invention and being received at least in part by the insulated housing (6).

A tool-less terminal block includes an insulated base, a turning part, a conductive terminal and a spring clamp. The insulated base has a cavity and a slot communicating to the cavity; the turning part is pivotally coupled to the insulated base; the conductive terminal is fixed to the bottom of the slot; the spring clamp is accommodated in the cavity and disposed at the top of the conductive terminal, and the spring clamp has a movable elastic arm pressing the conductive terminal to seal the slot, and the movable elastic arm has a link rod fixed to the turning part and operable together with the turning part. When the turning part is turned to a released position, the link rod is pulled by the turning part to drive the movable elastic arm away from the conductive terminal to open the slot, so as to provide a convenient use.

A spring force terminal such as a direct plug-in terminal for connecting a flexible stranded conductor includes a housing having a chamber and a plug-in channel for the conductor into the chamber. A busbar or a clamping cage are provided and a clamping spring arranged in the chamber acts as a compression spring for fixing the electrical conductor on the busbar or the clamping cage in the region of a clamping point. The clamping spring has a clamping leg pivotable around a pivot axis, which is adjustable from a latching state in which it is latched in a latching position into a clamping state in which it is unlatched from the latching position and presses the electrical conductor against the busbar or the clamping cage. The latching state is produced by pressing on the clamping leg in the conductor insertion direction using a pusher wherein the clamping leg is releasable from the latching state using two different actuatable adjustment devices. The second release element is designed to release the pusher from the latching position to release the clamping leg from the latching state. The release element is arranged and formed laterally in relation to the pusher in the chamber in such a way that it acts on the pusher essentially perpendicularly to the conductor insertion direction to release the pusher from the latching position.

A wire connection device includes a housing, a conductor, and a lever. The conductor is located inside the housing and has a leaf spring, a conductive member and a push-back block, and the lever is provided with a push-back notch and an actuating cam, and the lever is movably assembled in the housing so that the lever may swing against the housing so that the leaf spring is squeezed by the lever for generating a deformation. When the lever swings to an actuate position, the touch surface of the cam that touch the conductor will be changed so that the lever can be moved in a straight line against the housing simultaneously. Therefore, the push-back block can be inserted into the inside of the push-back notch. In this way, when the push-back block is positioned inside the push-back notch, the lever is kept stay so that the leaf spring is kept in a state of deformation by the lever, and the wire can insert into the wire connection device without push the leaf spring, so that the wire connection device won't be damaged easily.

Trace wire connectors that include a cover that can be attached to a base and used to electrically interconnect two or more tracer wires without having to remove insulation from the tracer wires. The cover has multiple portals that permit one or more tracer wires to pass into an inner cavity of the cover. The base has multiple cradles on which tracer wires passing into the cavity can rest. The cover can be oriented relative to the base for use with a through tracer wire and a dead-end tracer wire, or for use with multiple dead-end tracer wires.

[Problem] To allow a plurality of connection terminals to be reliably arranged in a storage case, and the storage case to be placed into a housing.

[Means for Resolution] A storage case 1 has a storage portion 2 in which female connection terminals T including connection portions at front ends are arranged in parallel along storage grooves 2d, and a cover 3 that covers the storage portion 2, and tubular temporarily storing portions 2i for inserting tips of connection portions Ta of the female connection terminals T for temporary storage are provided at the fronts of the respective storage grooves 2d.

A conductor terminal for connecting an electrical conductor by means of spring force clamping, the conductor terminal being configured for mounting on a busbar, the terminal conductor including at least one spring force clamping connection having a clamping spring for clamping the electrical conductor, a housing, which at least partially surrounds the spring force clamping connection and has a conductor insertion opening and a pivotably supported actuation lever, which is configured to actuate at least one part of the clamping spring, a receiving space for receiving at least one section of the busbar onto which the conductor terminal may be mounted, being present in the housing.

Modular junction boxes are disclosed. In one embodiment, a junction box for convenient modular industrial wiring is provided having a plurality of walls defining a first internal space of the junction box and at least one open face, a first connection area located on a first external face of the junction box having a first opening for receiving at least three electrical wires, a bus bar stack located in the first internal space of the junction box, a removable junction device having at least one contact support being mechanically and electrically attachable to the bus bar stack, and wherein when the junction device is attached to the bus bar stack, the junction device is electrically connected through the at least one contact support to one of at least three input openings of the bus bar stack.