Abstract:
A circuit breaker assembly includes a housing, an electrical bus structure coupled to the housing, and a number of first plug-in members coupled to the electrical bus structure. A number of circuit breakers include a first surface and a second plug-in member disposed opposite the first surface. The second plug-in member of each of the number of circuit breakers is mated with a corresponding one of the number of first plug-in members. A plate member is removably coupled to the housing. The plate member includes a first surface and an opposite second surface. The first surface of the number of circuit breakers engages the opposite second surface of the plate member in order to maintain mating of each of the number of circuit breakers with the corresponding one of the number of first plug-in members.
Abstract:
An aircraft circuit breaker includes a housing and a conductive member coupled thereto. The conductive member has a first conductive portion structured to be electrically and mechanically coupled to a conductive panel and a plurality of second conductive portions with a plurality of openings therethrough. An electronic circuit cooperates with an operating mechanism to trip open separable contacts. The circuit includes printed circuit boards having a plurality of conductive pads defining a ground. Each conductive pad has an opening therethrough. Each of a plurality of threaded conductive fasteners includes a conductive end portion, a conductive shaft disposed from the conductive end portion, and a plurality of conductive threads disposed on the conductive shaft. A number of the conductive threads electrically and mechanically engage a corresponding second conductive portion at a corresponding one of the openings. The conductive end portion electrically engages a corresponding one of the conductive pads.
Abstract:
An arc fault circuit breaker includes a panel having a first side and an opposite second side, a housing coupled to the opposite second side of the panel, separable contacts, an operating mechanism structured to open and close the separable contacts, and a trip mechanism cooperating with the operating mechanism to trip open the separable contacts. The trip mechanism includes a test circuit structured to simulate a trip condition to trip open the separable contacts, and a proximity sensor disposed on or within the housing proximate the opposite second side of the panel. The proximity sensor is structured to sense a target to actuate the test circuit when the target is disposed proximate the first side of the panel and opposite the proximity sensor.
Abstract:
An arc fault circuit breaker includes a panel having a first side and an opposite second side, a housing coupled to the opposite second side of the panel, separable contacts, an operating mechanism structured to open and close the separable contacts, and a trip mechanism cooperating with the operating mechanism to trip open the separable contacts. The trip mechanism includes a test circuit structured to simulate a trip condition to trip open the separable contacts, and a proximity sensor disposed on or within the housing proximate the opposite second side of the panel. The proximity sensor is structured to sense a target to actuate the test circuit when the target is disposed proximate the first side of the panel and opposite the proximity sensor.
Abstract:
A circuit interrupter includes a housing, separable contacts, and an operating mechanism including a latch. The operating mechanism opens the contacts responsive to actuation of the latch. A trip mechanism cooperates with the latch to trip open the contacts. The trip mechanism includes a thermal overload mechanism actuating the latch responsive to a thermal fault caused by current flowing through the contacts, a solenoid cooperating with the thermal overload mechanism to actuate the latch responsive to the electromagnetic device being energized, and a processor repetitively determining a value of the current flowing through the contacts, determining if the value exceeds a predetermined value for a number of occurrences, and responsively energizing the solenoid, in order to actuate the latch contemporaneous with actuation of the latch by the thermal overload mechanism, in order to decrease the time to trip open the contacts.
Abstract:
A subminiature circuit breaker is equipped with an arc fault auxiliary switch actuated by the arc fault trip motor through an indicator actuator that also deploys a pop-up arc fault indicator. An additional auxiliary switch actuated by the drive link on the toggle mechanism provides an indication of the open/closed state of the circuit breaker separable contacts. Both the arc fault auxiliary switch and the contact state auxiliary switch are mounted on the outside of the subminiature circuit breaker housing and are operated by an operating member and a pivoted member, respectively, extending through openings in the housing.
Abstract:
An indicator reset tool is for a movable arc fault indicator of a circuit breaker. The circuit breaker further includes a housing enclosing separable contacts, an operating mechanism for opening and closing the separable contacts, and an operating handle protruding through an opening in the housing. An actuator actuates the movable indicator arc fault indicator and actuates the operating mechanism to trip the separable contacts open. The indicator reset tool includes a reset member having a first end with an indicator engaging portion structured to depress and reset the movable arc fault indicator. The second end of the reset member includes a handle portion for gripping by a user.
Abstract:
A circuit breaker panel includes a number of circuit breaker modules each having a number of connectors, a plurality of circuit breakers and a circuit structure supporting the circuit breakers and electrically interconnecting the circuit breakers with the number of connectors. The panel also includes a monitoring module having a connector and a monitoring circuit to monitor at least one line voltage and, for each of the circuit breakers, at least one load voltage. The panel further includes a frame having a first connector for the monitoring module connector, a number of second connectors for the circuit breaker module connectors, and a number of third connectors for outputs from the circuit breaker modules. Conductors are connected to the connectors. Any of the monitoring module and the number of circuit breaker modules can be installed into or removed from the frame without change to the conductors.
Abstract:
A system is for an aircraft including a plurality of rows of seats. The system includes a plurality of monitors, a plurality of arc fault circuit interrupters each of which includes three poles having a line terminal and a load terminal. Each of a plurality of electronic enclosures is capable of being energized from a corresponding one of the load terminals of a corresponding one of the poles of a corresponding one of the AFCIs. A panel holds the AFCIs. A single-phase power source powers the line terminals of the poles of the AFCIs. Each of the poles corresponds to one row of the aircraft. Each of the electronic enclosures corresponds to one of a plurality of zones. Three of the rows are disposed in each of the zones. One of the AFCIs is associated with a corresponding one of the zones.
Abstract:
A circuit interrupter includes a housing, separable contacts, and an operating mechanism including a latch. The operating mechanism opens the contacts responsive to actuation of the latch. A trip mechanism cooperates with the latch to trip open the contacts. The trip mechanism includes a thermal overload mechanism actuating the latch responsive to a thermal fault caused by current flowing through the contacts, a solenoid cooperating with the thermal overload mechanism to actuate the latch responsive to the electromagnetic device being energized, and a processor repetitively determining a value of the current flowing through the contacts, determining if the value exceeds a predetermined value for a number of occurrences, and responsively energizing the solenoid, in order to actuate the latch contemporaneous with actuation of the latch by the thermal overload mechanism, in order to decrease the time to trip open the contacts.