The present disclosure relates to a molded case circuit breaker, and particularly, to a molded case circuit breaker having an enhanced arc protecting function. The molded case circuit breaker includes: a power side terminal portion provided at a front side of an enclosure and having a fixed contact arm; a finger assembly coupled to the fixed contact arm, and disposed on a front surface of the power side terminal portion; and a base bus supporter coupled to an upper surface and a lower surface of the power side terminal portion, and having a finger hole through which the finger assembly is exposed. The base bus supporter is provided with a protection unit configured to enclose the finger assembly around the finger hole.

A modularized structure of switch wire connection device includes an assembling support and a wire connection module. The assembling support has a first side and a second side. The first and/or the second sides are formed with assembling sections for assembling with the wire connection module. The wire connection module includes a first wire connection module and/or a second wire connection module each having a case. The case defines a chamber for receiving and enclosing electrical contact components including conductive members. The case is formed with a mounting section for connecting with the assembling section of the assembling support. Accordingly, the wire connection module is detachably mounted on the assembling support as an integrated form. The modularized structure enables an operator to easily assemble/disassemble the components and change the switch specification between normally open mode and normally closed mode and enhance insulation effect to avoid electric arc.

An electrical distribution apparatus has a bus bar assembly, a protective shroud, and electrical devices mounted therein. The electrical devices have a main housing, a line side housing for line side connectors and jaws, a securement portion for mounting the electrical device in a back pan of the electrical distribution apparatus. A method for mounting the electrical device in the electrical distribution apparatus is provided. A method for forming the line side connector assembly and installing the line side connector assembly to the main housing of the electrical device is also provided.

A jumper with safety fuse. The jumper includes first and second conducting wires and a fuse assembly interposed therebetween and connected thereto. A connector assembly is connected to each of the first and second conducting wires, which includes a plug section and a receptacle section. The plug section includes a body, a lead connector extending from a top of the body, and a plug extending from a base of the body. The receptacle section includes a socket configured to receive the plug and conduct electricity to its corresponding conducting wire, thereby forming an electrical connection therebetween. The jumper may be provided in a jumper kit with jumpers of different gauges and a set of interchangeable lead connectors.

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 low-voltage switching device includes a base module, with a connection region for electrical conductors. Auxiliary contacts and a coil connection are arranged in a separate auxiliary module that is attachable to and detachable from the base module to maximize flexibility in configuration, manufacture, functionality and utility of the switching device while reducing production costs.

A sealed electrical enclosure for housing an electrical component is provided. In one exemplary embodiment, the sealed electrical enclosure includes a housing, a first and second electrical connector, an actuator, and a terminal. The housing has a sealed interior when a top portion is coupled to a bottom portion. The first electrical connector extends from the sealed interior through the bottom of the housing and is electrically coupled to the electrical component. The actuator extends from the sealed interior through the housing and is configured to manipulate the electrical component. The terminal is electrically coupled to the second electrical connector. The second electrical connector is configured to mate with the first electrical connector. The first and second electrical connectors are configured to be connected and disconnected to attach and remove the housing to and from the terminal.

An arrangement includes a switch including a plurality of connectable modules. A first module is a connection module, electrical connections running into an interior, starting from the connection module for connection purposes. A second module is a manual plug module, connectable via its second contacts to the connection module, electrical connections passing external to the switch starting from the manual plug module for connection purposes. A third module is a communication module including a communication electronics system and including second contacts and first contacts, the communication module being connectable via its second contacts to the connection module and the manual plug module being connectable via its second contacts to the communication module. Second contacts of the communication module are electrically connectable to first contacts of the communication module or to the communication electronics system. The communication module is a communication adapter and the communication electronics system is connectable thereto.

An electrical distribution apparatus has a bus bar assembly, a protective shroud, and electrical devices mounted therein. The electrical devices have a main housing, a line side housing for line side connectors and jaws, a securement portion for mounting the electrical device in a back pan of the electrical distribution apparatus. A method for mounting the electrical device in the electrical distribution apparatus is provided. A method for forming the line side connector assembly and installing the line side connector assembly to the main housing of the electrical device is also provided.

A modular contactor. The modular contactor includes a driving module (1), an intermediate connection module (2), a breaking module (3), an upper application interface module (4), and a lower application interface module (5); the driving module (1) is detachably connected to a first side of the intermediate connection module (2); the breaking module (3) is detachably connected to a second side of the intermediate connection module (2); the upper application interface module (4) is detachably connected to the top of the breaking module (3) so as to be electrically connected to upper static contacts of the multiple breaking units; the lower application interface module (5) is detachably connected to the bottom of the breaking module (3) so as to be electrically connected to lower static contacts of the multiple breaking units.