Abstract:
Embodiments provide an electronic circuit breaker subassembly and circuit breaker secondary electrical contact assembly. The circuit breaker secondary electrical contact assembly has a main contact terminal connectable to a main power terminal, a secondary electrical contact set having a stationary secondary electrical contact and a moveable secondary electrical contact, a lockout conductor provided in spring-engaged contact with the main contact terminal on a first end and including one of the stationary or moving secondary electrical contacts on a second end, and a spring having the moveable secondary electrical contact provided on a moveable portion. Circuit breakers and methods of operating the electronic circuit breaker are provided, as are other aspects.
Abstract:
A control module for selectively switching electrical power from an electrical power source to a load circuit comprises a housing. An electromechanical actuator in the housing has a movable plunger. A fixed contact is fixedly mounted in the housing and is electrically connected to a first electrical terminal. A conductive contact arm in the housing comprises an elongate bar having a turn defining opposite first and second legs. The contact arm is pivotally mounted in the housing proximate the turn and is operatively connected to the plunger to be selectively positioned thereby. The contact arm further comprises a conductor tab proximate the turn. The first leg includes a movable contact for selectively electrically contacting the fixed contact. The second leg includes a user interface operator.
Abstract:
An apparatus, method and system for visually indicating a circuit breaker, such as a multi-pole circuit breaker, has been tripped are provided. An exemplary light guide comprises a plurality of light conduits adapted to transmit light from two or more light sources within a circuit breaker assembly to an exterior of the circuit breaker assembly; a beam that connects the light conduits; and one or more retention features coupled to one or more of the light conduits, wherein each retention feature is adapted to mate with a retention feature interface of the circuit breaker assembly. Numerous other aspects are provided.
Abstract:
A switching device for selectively switching electrical power from an electrical power source to a load circuit comprises a housing. An electromechanical actuator is in the housing. A fixed contact is fixedly mounted in the housing. A contact arm is pivotally mounted in the housing. The contact arm carries a movable contact and has a lever. The contact arm is operatively connected to the actuator to be selectively positioned thereby for selectively electrically contacting the moveable contact with the fixed contact. A rotational actuator is rotationally mounted to the housing. The rotational actuator includes a leg proximate the lever so that rotational movement of the rotational actuator pivotally moves the contact arm to override the electromechanical actuator.
Abstract:
Certain exemplary embodiments comprise an apparatus comprising, a circuit breaker comprising: an integral thermo-magnetic trip device adapted to trip said circuit breaker upon an occurrence of a current overload; an integral electronic trip device adapted to trip said circuit breaker upon detection of a ground fault and adapted to trip said circuit breaker upon detection of an arc fault; and a trip indicator adapted to visually indicate an occurrence of a trip of only said electronic trip device.
Abstract:
A low-profile electronic circuit breaker includes first and second electrical branches coupled to respective first and second load terminals. The electronic circuit breaker also includes an electronic processing circuit configured to monitor an electrical condition in the first and second electrical branches. The electronic circuit breaker is packaged in a housing sized to occupy a standard single-pole breaker panelboard location. In some embodiments, the electronic circuit breaker has no load neutral terminals associated with the first and second load terminals. Methods of assembling an electronic circuit breaker are provided, as are other system and method aspects.
Abstract:
An electric vehicle charging system is disclosed. More particularly, the system encompasses a load center having one or more electrical loads coupled thereto, electric vehicle supply equipment (EVSE) to charge an electric vehicle (EV), and a monitoring and limiting device (MLD) to monitor power or current usage of at least the one or more loads coupled to the load center, and adjust a charging level setting of the EVSE based upon the level of the usage. MLD apparatus and methods of charging a vehicle with electric vehicle supply equipment (EVSE) are provided, as are other aspects.
Abstract:
Certain exemplary embodiments comprise a bimetal restraint adapted to restrain a bimetal of a circuit breaker from deformation beyond a predetermined threshold during a short circuit event. In certain exemplary embodiments, the bimetal restraint can be adapted to act as a shunt during the short circuit event to transfer electrical energy from an electrical energy source to a load side of the circuit breaker.
Abstract:
A multipole switching device for selectively switching electrical power from an electrical power source to a load circuit. The switching device comprises a first control device comprising a housing, an electromechanical actuator in the housing including a movable plunger, and an electrical switch. A pin operatively connects the plunger to the electrical switch. A second control device comprises a housing mountable adjacent the first control device, an electromechanical actuator in the housing including a movable plunger, and an electrical switch. A pin operatively connects the plunger to the electrical switch. A tie bar is operatively connected to the pins to mechanically tie the first control device plunger to the second control device plunger.
Abstract:
A multipole switching device for selectively switching electrical power from an electrical power source to a load circuit comprises a first control device comprising a housing, an electromechanical actuator in the housing including a movable plunger, and an electrical switch in the housing operated by the plunger. A second control device comprises a housing mountable adjacent the first control device, an electromechanical actuator in the housing including a movable plunger, and an electrical switch in the housing operated by the plunger. A tie linkage mechanically ties the first control device plunger to the second control device plunger.