The present disclosure discloses a ground fault circuit breaker protector for wrong wiring power-off protection, and belongs to the technical field of ground fault circuit breaker protectors. The ground fault circuit breaker protector includes two conductors fixedly mounted inside a shell. One of the conductors is a power input end; and a line output end is electrically connected to a load output end through a transfer relay and forms the other conductor. The ground fault circuit breaker protector further includes a reset mechanism and a movement arm. By means of pressing the RESET push rod, the push rod is locked on the sliding block by the buckle; under the elastic action of the first springs and the second spring, the sliding block pushes the movement arm to contact the line output end and the load output end.

The present disclosure relates to a molded case circuit breaker. In accordance with one aspect of the present disclosure, a molded case circuit breaker for use in connection with a main busbar provided on a distribution board panel includes a power-source-side terminal provided to a front portion of a case and having a terminal assembly hole formed at an upper portion thereof; a base bus supporter comprising a connector protruding from a front surface thereof so as to engage with the main busbar installed on one side of the distribution board panel, the base bus supporter being coupled to an upper surface and a lower surface of the power-source-side terminal; an auxiliary cover plate coupled to an upper portion of the power-source-side terminal and provided with a temperature measurement hole communicating with the terminal assembly hole.

A circuit breaker and panel system includes a panel including a base pan having a plurality of base pan electrical connections. A circuit breaker including a housing having a plurality of circuit breaker electrical connections arranged to contact the base pan electrical connections when the circuit breaker is coupled to the base pan. The circuit breaker is rotatably coupleable with the base pan via a pivot joint for engaging the plurality of base pan electrical connections with the plurality of circuit breaker electrical connections per a predetermined electrical connection coupling sequence. One of the housing and the base pan includes a protrusion and the other of the housing and the base pan includes a corresponding recess which, when engaged with each other, retain the housing to the base pan to prevent reverse rotational movement of the breaker with respect to the base pan.

A circuit breaker and panel system includes a panel including a base pan having a plurality of base pan electrical connections. A circuit breaker including a housing having a plurality of circuit breaker electrical connections arranged to contact the base pan electrical connections when the circuit breaker is coupled to the base pan. The circuit breaker is rotatably coupleable with the base pan via a pivot joint for engaging the plurality of base pan electrical connections with the plurality of circuit breaker electrical connections per a predetermined electrical connection coupling sequence. One of the housing and the base pan includes a protrusion and the other of the housing and the base pan includes a corresponding recess which, when engaged with each other, retain the housing to the base pan to prevent reverse rotational movement of the breaker with respect to the base pan.

Modular circuit protection devices and configurable panelboard systems include arc-free operation, thermal management features providing safe operation in hazardous environments at lower cost and without requiring conventional explosion-proof enclosures and without entailing series connected separately provided packages such as circuit breaker devices and starter motor contactors and controls.

A modular power distribution device includes a base that is snap-fit onto DIN rail. The base includes a first mounting section, configured to receive a circuit protection device, and a second mounting section configured to receive an electronically actuated power distribution device. The circuit protection device slides on to the first mounting section and includes multiple output connections. The power distribution device slides on to the second mounting section and includes multiple input connections configured to engage the output connections of the circuit protection device as the power distribution device slides on to the second mounting section. An electronic control module is snap-fit to the assembly establishing electrical connections between the electronic control module and both the circuit protection device and the power distribution device. The electronic control module includes a port by which control signals are received and feedback signals may be transmitted.

A circuit breaker is provided, which includes a cradle having a plurality of cradle terminals, and a breaker main body connected to the cradle and having a plurality of breaker terminals electrically connected to the plurality of cradle terminals, in which each of the plurality of breaker terminals includes a terminal body extended from the breaker main body and protruded toward each of the plurality of cradle terminals, contacts coupled to upper and lower portions of terminal body and disposed in parallel to face each other, and a contact protrusion protruded to a round shape in a direction which the contacts face each other such that, upon connection of the plurality of cradle terminals, the contact protrusion contacts and presses both sides of the connected cradle terminals.

A circuit breaker is provided, which includes a cradle having a plurality of cradle terminals, and a breaker main body connected to the cradle and having a plurality of breaker terminals electrically connected to the plurality of cradle terminals, in which each of the plurality of breaker terminals includes a terminal body extended from the breaker main body and protruded toward each of the plurality of cradle terminals, contacts coupled to upper and lower portions of terminal body and disposed in parallel to face each other, and a contact protrusion protruded to a round shape in a direction which the contacts face each other such that, upon connection of the plurality of cradle terminals, the contact protrusion contacts and presses both sides of the connected cradle terminals.

A modular circuit breaker includes a module assembly coupled to a primary assembly. The primary assembly includes a primary housing, separable contacts disposed therein, a first terminal conductor electrically connected to one of the separable contacts, a conductive tab electrically connected to another one of the separable contacts and which extends outward from a first end of the primary housing, an operating mechanism disposed in the primary housing for selectively opening and closing the separable contacts, and a trip mechanism disposed in the primary housing cooperative with the operating mechanism to trip open the separable contacts. The module assembly includes a module housing having a second terminal conductor positioned therein and electrically connected to the conductive tab, a third terminal conductor structured to be electrically connected to a neutral conductor of a load, and a fourth terminal conductor structured to be coupled to a neutral bus.

A modular circuit breaker includes a module assembly coupled to a primary assembly. The primary assembly includes a primary housing, separable contacts disposed therein, a first terminal conductor electrically connected to one of the separable contacts, a conductive tab electrically connected to another one of the separable contacts and which extends outward from a first end of the primary housing, an operating mechanism disposed in the primary housing for selectively opening and closing the separable contacts, and a trip mechanism disposed in the primary housing cooperative with the operating mechanism to trip open the separable contacts. The module assembly includes a module housing having a second terminal conductor positioned therein and electrically connected to the conductive tab, a third terminal conductor structured to be electrically connected to a neutral conductor of a load, and a fourth terminal conductor structured to be coupled to a neutral bus.