Circuit BreakerFree Patent Search

  • Lever fitting-type power supply circuit breaker

    Abstract Power terminals constituting a power switch are provided in both of connector housings, respectively. Fitting sensing terminals forming a fitting sensing switch are provided in a lever attached to the one connector housing and the other conn...

  • Circuit breaker handle block

    Abstract A circuit breaker includes a crank for coupling a rotary arm breaker mechanism to the cradle. The crank has a protrusion which cooperates with a handle yoke to restrict movement of the operating handle when the contacts of the circuit breake...

  • Configuring a centrally controlled circuit breaker protection system

    Abstract There is provided a computer-implemented method for configuring a centralized circuit breaker protection system. The method includes determining configuration data for a processor in the centralized circuit breaker protection system in accor...

  • Circuit breaker comprising a control assembly and interrupting chamber and method of assembly

    Abstract A circuit breaker including a control assembly having a driving and a driven splined shafts and a pair of arcing contacts movable by the control assembly. A synchronization assembly is provided for synchronizing the two splined shafts and in...

  • Current limiting circuit breaker

    Abstract A multipole current limiting circuit breaker comprising an insulating enclosure that contains: a) for each pole, at least one fixed contact and at least one movable contact, which can be mutually coupled/uncoupled upon closure/opening of the...

  • Contactor device of circuit breaker

    Abstract A contactor device of a repulsion-type circuit breaker includes a first movable contactor with a first movable contact to be driven by an open-close mechanism; a fixed contactor; a second movable contactor having second and third movable con...

  • Contact supporting shaft for a low-voltage power circuit breaker

    Circuit Breaker Abstract A rotating contact supporting shaft for a low-voltage power circuit breaker, whose particularity consists of the fact that it has a modular structure that comprises, along the rotation axis, at least one first and one second...

  • Circuit breaker overcurrent and ground fault test apparatus

    Circuit Breaker Abstract An electrical circuit test apparatus for testing a three-conductor electrical circuit outlet connected to an associated circuit breaker. The three-conductor connections are the electrically active (Hot), neutral and ground. A...

  • Remote controlled circuit breaker switch handle engagement apparatus

    Circuit Breaker Abstract A remote controlled circuit breaker switch handle engagement apparatus is provided. The apparatus is adapted to be removably attached across a circuit breaker face-plate of a traditional residential and commercial circuit bre...

  • Isolation cap and bushing for circuit breaker rotor assembly

    Circuit Breaker Abstract An electrically isolated rotor assembly for a cassette assembly of a circuit breaker includes a rotor having a first side and an opposing second side, a first isolation cap disposed on the first side, a second isolation cap d...

  • Freewheel coupling device for a spring-loaded operating mechanism for a high-voltage circuit-breaker

    Circuit Breaker Abstract A spring-loaded operating mechanism for a high-voltage circuit-breaker comprises, between a motor and a trigger shaft, a freewheel-type coupling device which comprises first and second friction members (5, 6) coaxially mounte...

  • Slot motor including legs engaging openings of circuit breaker housing and electrical switching appar

    Circuit Breaker Abstract A circuit breaker includes a housing having first and second openings, with stationary and movable separable contacts disposed therein. An operating mechanism is disposed in the housing, is coupled to the separable contacts a...

  • Power circuit breaker

    Circuit Breaker Abstract A power circuit breaker includes a switching pole enclosure for accommodating at least one switching pole, whose switching contacts, when closed, rest against one another on a predetermined contact plane. It further includes...

  • Pre-emptive circuit breaker with arc fault and fault lockout short circuit protection

    Circuit Breaker Abstract Fault abatement circuit breaker for providing protection of critical loads. The circuit breaker provides both arc fault protection and fault lockout protection in one integrated circuit breaker. The fault lockout protection r...

  • Apparatus and method for circuit breaker trip unit adjustment

    Circuit Breaker Abstract A trip system for a circuit breaker having a calibration system is disclosed. The calibration system includes a retainer, a tripping member responsive to an electric current, an actuator retained by the retainer, a spring adj...

  • Solid-state DC circuit breaker

    Abstract A high-speed, solid-state circuit breaker is capable of interrupting high DC currents without generating an arc, and it is maintenance-free. Both the switch and the tripping unit are solid-state, which meet precise protection requirements. T...

  • Circuit breaker panel for hazardous environments

    Circuit Breaker Abstract A circuit breaker panel for hazardous environments and, in particular, Class 1, Division 2 environments, includes a housing having an internal cavity and an access opening through which the internal cavity is accessed. A clos...

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  • Total 68 pages, 1156 patent(s)