The present disclosure relates to a semiconductor circuit breaker, and more specifically, to a semiconductor circuit breaker provided with a detachable interface module. The semiconductor circuit breaker, according to one embodiment of the present disclosure, comprises: a circuit breaker main body connected to a main circuit and provided with a module receiving unit on the outer surface thereof; and an interface module provided independently from the circuit breaker main body and detachably coupled to the module receiving unit. The circuit breaker main body comprises: a terminal cover rotatably coupled to a terminal unit of the circuit breaker main body; and an interlock member provided to the circuit breaker main body and restricting or releasing the opening of the terminal cover. The interface module comprises an interlock driving unit for operating the interlock member.

A hot swap component is provided, which includes a movable portion and a fixed portion that may be electrically connected to each other by using electrical connectors. When a circuit breaker works, a pin that is of an electrical connector and that is located on the movable portion is correspondingly connected to a base located on the fixed portion, and the fixed portion and the circuit breaker inside the movable portion are conducted. When the circuit breaker is faulty and needs to be repaired and replaced, the movable portion can be pulled out from the fixed portion, and the circuit breaker is electrically disconnected from the fixed portion. An anti-electric shock protection mechanism of the fixed portion isolates a first base inside the fixed portion, thereby implementing safe hot swap of the circuit breaker.

The invention relates to a switching device including a housing having a front housing and a rear housing. The rear housing includes a rear housing face, and a first sidewall, first end a second sidewall, and a second end wall projecting from the rear housing face to form at least one interior chamber. The sidewalls of the rear housing include a rear housing tab that projects away from the rear housing face. The switching device further includes a splitter plate support, comprising first and second support panels, located within the interior chamber. The first support panel further includes a support hook that extends from the outer panel face. The support hook has an aperture that engages the rear housing tab, in which the rear housing tab extends through the aperture of the support hook, forming a double-walled panel and reinforcing the housing.

A circuit board enclosure comprises a circuit breaker, platform, base, cover, and circuit board. The circuit breaker includes two conductors and a plate, which is connected to the conductors. The platform receives the circuit breaker. The base has a bottom member and an opening arranged in the bottom member. The base receives the platform with the circuit breaker such that the plate of the circuit breaker is accommodated substantially within the opening of the bottom member. The cover is configured to cover the base and form an interior space. The interior space accommodates the platform, the circuit breaker, and the circuit board. The circuit board is connected to the circuit breaker. The circuit board enclosure can be adhered to a substantially planar surface. The plate is configured such that removal of the circuit board enclosure from the substantially planar surface will damage the connection of the plate to the conductors.

The present invention relates to a trip device for a molded case circuit breaker and, more specifically, to an electronic trip device for a molded case circuit breaker. The electronic trip device for a molded case circuit breaker, according to one embodiment of the present invention, comprises: a trip part case having a plurality of phases; a trip part terminal provided at the rear surface part of the trip part case and provided for each phase; and a voltage sensing conductor coupled between the rear surface part and the trip part terminal and provided for each phase, wherein the voltage sensing conductor provided for each phase is formed to have the same shape and the same size.

The power distribution system includes a plug-in frame, a board located in the plug-in frame, and at least one circuit breaker. The board includes a plurality of slot positions, a position signal acquisition apparatus is disposed on the board, and the position signal acquisition apparatus is configured to acquire an address of any slot position on the board. A first end of each circuit breaker extends into the plug-in frame and is plugged to a slot position on the board, and a second end of the circuit breaker is located at an open end of the plug-in frame. The open end of the plug-in frame is provided with an address code, the address code corresponds to an address of a slot position on the board, and each circuit breaker corresponds to at least one address code.

The power distribution system includes a plug-in frame, a board located in the plug-in frame, and at least one circuit breaker. The board includes a plurality of slot positions, a position signal acquisition apparatus is disposed on the board, and the position signal acquisition apparatus is configured to acquire an address of any slot position on the board. A first end of each circuit breaker extends into the plug-in frame and is plugged to a slot position on the board, and a second end of the circuit breaker is located at an open end of the plug-in frame. The open end of the plug-in frame is provided with an address code, the address code corresponds to an address of a slot position on the board, and each circuit breaker corresponds to at least one address code.

Example bases are described. One example base includes an insulating housing, where the insulating housing has a first surface and a second surface that are away from each other. The first surface is configured for a detachable connection of a circuit breaker. The second surface is provided with a first mounting slot. The insulation housing can be slidably snapped into a mounting rail in power distribution equipment by using the first mounting slot. An accommodating cavity is provided in the insulation housing. The accommodating cavity is configured to accommodate a conductive connection member. One end of the accommodating cavity is open along a sliding direction of the insulating housing relative to the mounting rail, and the other end thereof is closed. The base is used to install the circuit breaker.

An auxiliary contact unit including: a pair of fixed contact pieces; a movable contact piece arranged in a contactable and separable manner to and from the pair of fixed contact pieces; an auxiliary contact support configured to hold the movable contact piece and move in conjunction with opening/closing operation of an electromagnetic contactor; and a unit case configured to house the pair of fixed contact pieces, the movable contact piece, and the auxiliary contact support in a housing portion formed with joining portions of respective ones of a first case member and a second case member opposed to each other, wherein the joining portions of the respective ones of the first and second case members are air-tightly joined to each other.

A hot swap component includes a movable portion and a fixed portion that may be electrically connected to each other by using electrical connectors. When a circuit breaker works, a pin (12a, 12c) that is of an electrical connector and that is located on the movable portion is correspondingly connected to a base (12b, 12d) located on the fixed portion, and the fixed portion and the circuit breaker inside the movable portion are conducted. When the circuit breaker is faulty and needs to be repaired and replaced, the movable portion can be pulled out from the fixed portion, and the circuit breaker is electrically disconnected from the fixed portion. An anti-electric shock protection mechanism of the fixed portion isolates a first base inside the fixed portion, thereby implementing safe hot swap of the circuit breaker.