An electric circuit breaker device includes an igniter, a rod-like projectile, and a conductor portion for forming a part of an electric circuit, and an insulating closed space. The conductor portion includes a first and second connection portions and a cut portion at an intermediate portion, and is disposed with a surface of the cut portion. The rod-like projectile has an end portion facing the cut portion. The insulating closed space has an opening portion facing the conductor portion, a closed end surface opposite to the opening portion in the housing axial direction, and four side surfaces between the opening portion and the closed end surface. A width (W1) of the opening portion of the insulating closed space and a width (L1) of the end portion of the rod-like projectile have a relationship of W1>L1 and W1−L1≥0.25 mm.

A component that includes a housing for a circuit breaker and a reinforcement element mounted on the housing is disclosed. The housing includes outer walls on at least four sides. The reinforcement element is mounted on the housing along a reinforced side of the housing. The reinforced side is a side of the four sides. The reinforcement element is formed separately than the housing. The reinforcement element is placed external to the reinforced side of the housing, subject to deformation outward from an interior of the housing during a short circuit event.

A circuit interrupter adapted to be detachably connected to a rail system includes a housing having a notch disposed thereon adapted to receive a first leg of the rail system. An engagement member having a notch disposed therein adapted to receive a second leg of the rail system is slideably carried by the housing such that the notch in the engagement member is moveable in a first plane toward and away from the notch in the housing between an engaged position and a disengaged position. An actuation member is slideably carried by the housing and is moveable in a second plane, different than the first plane, between an actuated position and an unactuated position, movement of the actuation member in the second plane being translated into movement of the engagement member in the first plane.

Breaker/plug combination device with “plug-in” receptacle that mounts in a breaker panel. The plug receptacle connects line feed to a power cord inserted by the operator. The devices include a multifunction circuit interrupt that offers overload, thermal, and ground fault (GFCI) protection for the operator in environments such as garages, shops and spider boxes at construction sites, for example, and for electric vehicle (EV) charging. Given the shortage of charging stations for EVs, the devices offer a convenient way to set up home charging without the need for an electrician, a sub-box, or a specially-installed wall plug outlet. The devices may include watchdog circuitry and networkable communications circuitry that is compatible with a wired or wireless TOT network. In another embodiment that does not require adding a new circuit breaker, a dummy breaker body includes a plug receptacle with a GFCI interrupt circuit but with no direct electrical connection to the hot bus bar, and is wired in series with a conventional circuit breaker unit. Using solid state electronics, the GFCI panel-mounted devices may be configured to perform an automatic fault test on a regular schedule or prior to each use, and to store and report fault status.

An apparatus includes a circuit breaker and mounting bracketry fastened to the rear side of the circuit breaker. The mounting bracketry includes first and second spacer portions extending rearward from a respective locations inside the width of the circuit breaker unit, first and second fixation portions extending outward from the first and second spacer portions, respectively, to respective positions outside the width of the circuit breaker, and first and second hook portions extending rearward from the first and second fixation portions, respectively. The circuit breaker may be mounted to an electrical enclosure with the first hook portion and the second hook portion engaging a mounting rail of the electrical enclosure.

An apparatus for attaching a panel mounted electrical component includes an L-shaped bracket. The bracket includes a horizontal member having a frontward facing edge and a rearward facing edge. The bracket further includes an opening on the horizontal member that is configured for receiving a panel mounted electrical component. A vertical member is aligned along the rearward facing edge of the horizontal member. The vertical member is integral with the horizontal member and defines a ninety-degree angle. A plurality of openings located on the vertical member are configured for receiving fasteners to attach an outward facing surface of the vertical member to a surface. The bracket also includes a lip that is vertically aligned along the frontward facing edge of the horizontal member. The lip is integral with the horizontal member and defines a ninety-degree angle.

A system may be configured to replace a manual service disconnect (MSD). Some embodiments may: provide a set of batteries that include an MSD; remove the MSD; and install a contactor at the MSD. The replacement may be performed via substantially similar housing previously used by the MSD.

A remote drive with a support element for a top-hat-rail mounting. Opposing actuators disposed on the support element alternatingly act on a displaceably mounted slider by rod-shaped anchors. A slider passage receives a first lever arm of a rocker lever pivotable about a rotational axis parallel to the top hat rail length and nearly passes through a rotational point of a shift lever of a switching device. A carrier rail on a second lever arm is parallel to the top hat rail length, the shift lever engaging the carrier rail to the side of the second lever arm. When the slider is displaced, the rocker lever flips simultaneously activate the shift lever. In a remote drive assembly, two remote drives are disposed adjacent to one another on a top hat rail with a locking mechanism. Alternatively, individually controlled actuators act on first and second legs of a T-shaped rocker switch.

A low voltage circuit breaker is provided. The low voltage circuit breaker includes a contact system with a first contact and a second contact that are electrically connectable and disconnectable relative to one another. The first contact includes a body having a first layer and a second layer, wherein the first layer is arranged on the second layer and is configured to come in contact with the second contact for providing the electrical connection with the second contact. The first layer has a first material composition having an Ag content that is higher than an Ag content of a second material composition of the second layer. Further, the first material composition has a WC content that is lower than a WC content of the second material composition.

An adapter for installing electrotechnical components includes: a standardized support rail having a top-hat rail, and which has fastening means on an upper face thereof for installing an electrotechnical component, and fastening means on a bottom face thereof for installing on a front panel of an electrotechnical component. The fastening means on the bottom face have at least one latch hook for latching into a corresponding latch opening on the front panel of the electrotechnical component, and/or the fastening means on the bottom face have at least one snap hook for snapping into a corresponding snap opening on the front panel of the electrotechnical component.