Stackable electric contact block including a casing that defines its volume, the casing having upper and lower faces for connecting the block to another component, the casing accommodating a screw for fixing the block to another component, and a press rod capable of moving from a rest position to an activation position for transferring a translation force to a component attached to the lower face of the casing, the press rod including an activation head in the form of a wedge capable of engaging with a push-button or a rotary knob, the casing including a cavity for guiding the press rod between its rest and activation positions, in which cavity the press rod is accommodated. A device for guiding the press rod into the guide cavity includes a guide tab accommodated in a matching guide slot passing through the activation head.

A device assembly capable of selectively bonding one or more tracer wires to ground and isolating the one or more tracer wires from ground is provided. The device assembly includes a housing, an electrical switch within the housing and one or more contact assemblies. The one or more tracer wires and ground wire are connected to the one or more contact assemblies. The electrical switch can connect the tracer wires to the ground wire and can isolate the tracer wires from the ground wire.

A contact insert for a connecting terminal, wherein the contact insert has a busbar piece and a clamping spring for clamping an electrical conductor in a conductor insertion direction, wherein the busbar piece and the clamping spring form a clamping point for the electrical conductor to be clamped, and wherein the contact insert has a bushing contact for receiving a contact pin. The longitudinal extension direction of the bushing contact runs essentially perpendicular to the conductor insertion direction from the busbar piece. The bushing contact is designed to receive the contact pin perpendicular to the longitudinal extension direction of the bushing contact and to receive the contact pin in the longitudinal extension direction of the bushing contact.

An electric meter includes: a plurality of connectors configured to form electrical connections to corresponding plurality of receptacles in an electric meter socket, wherein at least one electrical connection to the plurality of receptacles is formed with a neutral wire; and a plurality of measurement devices configured to measure electrical characteristics of voltage and current waveforms provided to the electric meter from an electric distribution system and a distributed energy resource (DER) device via the plurality of connectors. The neutral wire provides an electrical reference point for measurement of the voltage waveforms.

An electric meter socket includes: a first plurality of connection points within the electric meter socket configured to form electrical connections to line voltage wirings of an electric distribution system; a second plurality of connection points within the electric meter socket configured to form electrical connections to output voltage wirings of a DER device; one or more connection points within the electric meter socket configured to form an electrical connection of neutral wires of the electric distribution system, the DER device, and a load; and a plurality of receptacles, each of the plurality of receptacles electrically connected to a corresponding connection point and configured to accept a mating connector of an electric meter.

A plug-in connection arrangement for arranging a relay includes a terminal block comprising a relay holder configured to hold a relay. The relay comprises a bottom wall, a side wall, and a contact plug which projects out of the bottom wall. The side wall is arranged perpendicular to the bottom wall and includes an offset section which contacts the bottom wall and projects out into the relay in a direction of a surface normal of the side wall. The relay holder includes a socket configured to hold the contact plug of the relay when the relay is inserted into the relay holder. The relay holder also includes an insulating wall which, when the relay is inserted into the relay holder, is aligned parallel to the side wall and projects beyond the bottom wall to form an angled insulation section for the contact plug along a surface of the insulating wall.

An electric meter socket includes: a first plurality of connection points within the electric meter socket configured to form electrical connections to line voltage wirings of an electric distribution system; a second plurality of connection points within the electric meter socket configured to form electrical connections to output voltage wirings of a DER device; one or more connection points within the electric meter socket configured to form an electrical connection of neutral wires of the electric distribution system, the DER device, and a load; and a plurality of receptacles, each of the plurality of receptacles electrically connected to a corresponding connection point and configured to accept a mating connector of an electric meter.

An electrical outlet has a female member with at least two electrically conductive contact sleeves for the reception of the pins on a plug inserted in the female member and a connector arrangement for connection of the electrical outlet to a mains supply. The female member is movable relative to the connector arrangement between a first mode, in which the contact sleeves are electrically disconnected from the mains supply, and a second mode, in which contact sleeves are electrically connected to a mains supply. The connector arrangement include a connection ring and a mounting plate. The connector arrangement further include connection plates, whose number corresponds to the number of contact sleeves on the female member, wherein each contact sleeve is brought in or out of contact with a connection plate by movement of the female member.

A circuit breaker housing for holding a switching device unit and a number of connection contacts for a connection line and/or a busbar. The housing has a first housing part and a second housing part. In the joined, assembled state, the housing parts form a front side and a rear side opposite said front side and at least one connection side and end faces located opposite one another. A holding chamber for a connection module having one of the connection contacts is provided on the front side and/or on at least one of the connection sides.

A modular I/O device includes a terminal base with a terminal block that includes a plurality of wiring connectors. An auxiliary wiring device includes a plurality of auxiliary wiring connectors and is selectively physically connectable to the terminal base in an operative position and selectively physically removable from the terminal base. The terminal block and auxiliary wiring connector can be coupled to an I/O module. One or more of the I/O module terminal block and auxiliary wiring connector can include electrical or electronic components included converters, fuses, switches, etc.