A lead terminal that has a modular design, and that has at least one connection module and a plug-in module. The plug-in module being separate from the connection module.

A conductor terminal including a casing made of insulating material. A first spring-loaded clamping connection has a first conductor-receiving space for receiving a first electrical conductor. A second spring-loaded clamping connection has a second conductor-receiving space for receiving a second electrical conductor. The first spring-loaded clamping connection is connected to the second spring-loaded clamping connection via a busbar extending from the first conductor-receiving space to the second conductor-receiving space. The casing made of insulating material comprises multiple parts including a main casing part and at least a first cover part.

A conductor connection terminal with a plurality of spring-loaded clamping connections arranged directly next to one another in a row direction in a housing, each with a pivotable actuating lever, wherein an actuating lever is set up in each case to open the clamping point of an associated spring-loaded clamping connection, wherein the respective actuating lever has at least one grip area for manually gripping the actuating lever, which has a first longitudinal side and a second longitudinal side facing away therefrom.

A cable connector comprises a housing, a conductive element fixed on the housing and connected with the cable, an elastic piece adjacent to the conductive element, detective and switch terminals fixed on the housing and connected with a pressing plate. The pressing plate is rotatable between a first position and a second position. When the pressing body is abutted at the first position by the elastic piece, a receiving gap between the elastic piece and the conductive element is closed to prevent the cable from entering, and the pressing body is abutted against the switch terminal to define a first conductive state. When the pressing body is at the second position, the receiving gap is opened to receive the cable, and the pressing body is disengaged with the switch terminal, to define a second conductive state. A connection state can be known by detecting the first and second conductive states.

A terminal block includes a state display portion which displays whether a conductor portion and a terminal electrode portion are in a connected state or a non-connected state at a third opening portion and a movable display member. The movable display member has a main body portion capable of reciprocating in a direction intersecting a terminal connection surface, a contact portion capable of coming into contact with a conductor portion inserted from a first opening portion into an accommodating portion, a force transmitting portion which moves the main body portion toward the terminal connection surface when the conductor portion is inserted from the first opening portion to the accommodating portion, and rotating mechanism portions which rotate the state display portion so that display of the state display portion can be changed between a connected state and a non-connected state in accordance with the reciprocating movement of the main body portion.

A connection clamp for connecting at least two electrical conductors to one another, having an insulating housing with at least one first and one second conductor insertion opening that are arranged on mutually opposite sides of the insulating housing. A first spring-force clamping connection for electrically contacting a first electrical conductor inserted through the first conductor insertion opening and a second spring-force clamping connection for electrically contacting a second electrical conductor inserted through the second conductor insertion opening are provided. The first spring-force clamping connection is electrically connected to the second spring-force clamping connection via a bus bar. The first spring-force clamping connection has at least one first clamping spring for clamping the first electrical conductor against a first clamping point of the bus bar, the second spring-force clamping connection has a clamping leg for clamping the second electrical conductor against a second clamping point of the bus bar.

A conductor connection contact element for clamping an electrical conductor having at least one resilient force clamping connection. At least one first SMD-solder contact is arranged on an assembly face of the conductor connection contact element and configured for soldering to a contact surface. A conductor inserting region is formed by a sheet metal part of the conductor connection contact element. At least one conductor guiding base is oriented so as to form a guiding surface for the electrical conductor that is to be inserted. A material portion of the sheet metal part is adapted to be bent over at least one curved region to form a first SMD-solder contact and a region of the conductor guiding base that is oriented in an oblique manner with respect to the conductor inserting direction is adjacent to the at least one curved region.

A coupler optionally couples two sets of conductive wires. In some embodiments, the coupler includes a body having a first end with a first set of at least two holes and a second end with a second set of two holes. Optionally each hole includes a clamp. Optionally, each clamp of said first set of holes is conductively connected to at least one clamp of said second set of holes. In some embodiments a first rotating element simultaneous attaches to said coupler a first set of a plurality of wires inserted into said first set of holes and/or a second rotating element simultaneous attaches to said coupler a second set of a plurality of wires inserted into said second set of holes.

A connection terminal for connecting an electrical conductor includes: an insulating housing having at least one conductor terminal device which in each case can be operated by an actuation element mounted in the insulating housing so as to be pivotable about a pin. The at least one conductor terminal device includes a clamping point for the electrical conductor that is formed by a contact element arranged in a stationary manner in the insulating housing and a clamping spring that is arranged in the insulating housing so as to be movable, by the actuation element, between an open position and a clamping position by a free leg of the clamping spring being articulated to the actuation element by a connecting element such that the clamping spring can be moved into the open position by a pivot movement of the actuation element in a first direction.

A terminal block includes a state display portion which displays whether a conductor portion and a terminal electrode portion are in a connected state or a non-connected state at a third opening portion and a movable display member. The movable display member has a main body portion capable of reciprocating in a direction intersecting a terminal connection surface, a contact portion capable of coming into contact with a conductor portion inserted from a first opening portion into an accommodating portion, a force transmitting portion which moves the main body portion toward the terminal connection surface when the conductor portion is inserted from the first opening portion to the accommodating portion, and rotating mechanism portions which rotate the state display portion so that display of the state display portion can be changed between a connected state and a non-connected state in accordance with the reciprocating movement of the main body portion.