Circuit breakers with a rotary handle attached to an inwardly oriented shaft that connects to a gear assembly that translates rotational input to linear input also include a trip assist spring in communication with the rack gear so that, in operation, the trip assist spring applies a force to the operator slider and forces the handle to a consistent trip position.

Circuit breakers with a rotary handle attached to an inwardly oriented shaft that connects to a gear assembly that translates rotational input to linear input also include a trip assist spring in communication with the rack gear so that, in operation, the trip assist spring applies a force to the operator slider and forces the handle to a consistent trip position.

A direct-current (DC) air circuit breaker for opening and closing a circuit according to various embodiments includes a circuit unit having a main circuit, a detecting unit having a detection circuit for detecting a fault current in the main circuit, and a circuit operating device configured to allow connection or isolation between the main circuit and the detection circuit.

A direct-current (DC) air circuit breaker for opening and closing a circuit according to various embodiments includes a circuit unit having a main circuit, a detecting unit having a detection circuit for detecting a fault current in the main circuit, and a circuit operating device configured to allow connection or isolation between the main circuit and the detection circuit.

An actuator assembly for actuating an electrical switch housed in sealed electrical enclosure is disclosed. The actuator assembly includes a handle assembly including a handle positioned on an exterior of a cover of the sealed enclosure, a trip bracket positioned within the sealed enclosure and a shaft connecting the handle to the trip bracket. A slider actuator is slidably mounted over an electrical switch positioned within the enclosure and operatively associated with or coupled to a toggle of the electrical switch. The slider actuator has a drive link which is adapted to engage the trip bracket such that rotation of the handle activates the drive link which causes linear movement of the slider actuator to move the electrical switch between on and off positions. The use of the slider actuator allows a higher density of electrical switches to be stacked within the sealed enclosure.

A circuit breaker system includes an internal operating handle disposed inside an enclosure and coupled to a shaft extending from a circuit breaker. The internal operating handle includes a dog clutch coupled to the shaft and a rotary handle coupled to the dog clutch. The rotary handle is operative to rotate the shaft when the dog clutch is engaged. A safety operating handle system for turning a shaft to operate a circuit breaker includes a rotary handle and a dog clutch having a first clutch member coupled to the rotary handle and having a second clutch member coupled to the shaft. The dog clutch is operative to transmit a rotation of the rotary handle to the shaft when the first clutch member is in an engagement position.

A circuit breaker system includes an internal operating handle disposed inside an enclosure and coupled to a shaft extending from a circuit breaker. The internal operating handle includes a dog clutch coupled to the shaft and a rotary handle coupled to the dog clutch. The rotary handle is operative to rotate the shaft when the dog clutch is engaged. A safety operating handle system for turning a shaft to operate a circuit breaker includes a rotary handle and a dog clutch having a first clutch member coupled to the rotary handle and having a second clutch member coupled to the shaft. The dog clutch is operative to transmit a rotation of the rotary handle to the shaft when the first clutch member is in an engagement position.

The present disclosure relates to the field of switch gears, and envisages an actuator for a switch gear of an electric panel having a door. The actuator comprises an aligner assembly and an actuator plate assembly. The aligner assembly comprises an aligner pivotably mounted on the switch gear housing, and engaging with a toggle of a circuit breaker, of the switch gear, to angularly displace the toggle. The aligner has a pair of slanting flanges configured to define a valley separated by a gap. The actuator plate assembly comprises a mounting plate mounted on the enclosure door. A shaft element, having a handle element and an engaging element, passes through the mounting plate. The engaging element is configured to nest in the gap of the aligner to angularly displace the aligner.

A remote control device includes a rotary control member that can be selectively moved between first and second configurations, a transmission system suitable for mechanically linking the rotary member to a control lever of an electrical device. The movement of the rotary control member drives the control lever to move respectively between first and second positions. The rotary control member is to be mounted on a side walls of a housing, the transmission system includes a first pinion, secured in rotation with the rotary control member about a first axis, a second pinion, meshed with the first pinion and rotationally mobile about a second fixed axis at right angles to the first fixed axis and intended to be coupled mechanically with the control lever to move this lever when the second pinion is moved in rotation.

A remote control device includes a rotary control member that can be selectively moved between first and second configurations, a transmission system suitable for mechanically linking the rotary member to a control lever of an electrical device. The movement of the rotary control member drives the control lever to move respectively between first and second positions. The rotary control member is to be mounted on a side walls of a housing, the transmission system includes a first pinion, secured in rotation with the rotary control member about a first axis, a second pinion, meshed with the first pinion and rotationally mobile about a second fixed axis at right angles to the first fixed axis and intended to be coupled mechanically with the control lever to move this lever when the second pinion is moved in rotation.