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US 11,417,489 B2Granted
Trip unit fixation in a circuit breaker
AssigneeRockwell Automation Technologies, Inc.
InventorBeat Villiger
Life of this patent
Estimating the term…
Abstract
A circuit breaker with improved trip unit fixation is disclosed. Another circuit breaker and a system also perform the functions of the circuit breaker. A circuit breaker includes a frame and a trip unit mounted in the frame. The trip unit includes a terminal for securing a wire to the trip unit. One of a wall of the frame and the trip unit include a protrusion and the wall of the frame or the trip unit without the protrusion includes an opening. The protrusion conforms to the opening and the protrusion and opening are positioned to oppose movement of the trip unit in a direction of a force resulting from securing the wire in the terminal.
Claims20
A circuit breaker comprising:
- a frame comprising a trip unit slot;
- and
- a trip unit mounted in the trip unit slot of the frame, the trip unit comprising a terminal accessible from a top side of the trip unit above the trip unit slot, the top side facing away from the trip unit slot, the terminal configured to secure a wire to the trip unit,
- wherein one of a wall of the frame adjacent to the trip unit slot and a side of the trip unit facing the wall comprises a protrusion and the wall of the frame or the side of the trip unit without the protrusion comprises an opening, wherein the wall of the frame comprising the opening or the protrusion comprises an exterior wall of the frame, wherein the top side of the trip unit comprising access to the terminal is perpendicular to the side of the trip unit comprising the protrusion or opening, wherein the protrusion conforms to the opening and wherein the protrusion and opening are positioned to oppose movement of the trip unit in a direction of a force resulting from securing the wire in the terminal.
1 more element
A circuit breaker comprising:
- a frame comprising a plurality of trip unit slots;
- and
- a trip unit mounted in each trip unit slot, each trip unit comprising a terminal accessible from a top side of the trip unit above the trip unit slot, the top side facing away from the trip unit slot, the terminal configured to secure a wire to the trip unit,
- wherein one of a wall of a trip unit slot of the plurality of trip unit slots adjacent to the trip unit slot and a side of the trip unit mounted in the trip unit slot facing the wall comprises a protrusion and the wall of the trip unit slot or the side of the trip unit mounted in the trip unit slot without the protrusion comprises an opening, wherein the wall of the frame comprising the opening or the protrusion comprises an exterior wall of the frame, wherein the top side of the trip unit mounted in the trip unit slot comprising access to the terminal is perpendicular to the side of the trip unit comprising the protrusion or opening, wherein the protrusion conforms to the opening and wherein the protrusion and opening are positioned to oppose movement of the trip unit mounted in the trip unit slot in a direction of a force resulting from securing the wire in the terminal.
1 more element
A system comprising:
- an electrical device;
- and
- a circuit breaker coupled to the electrical device, wherein power transmitted through the circuit breaker feeds the electrical device, wherein the circuit breaker comprises:
- a frame comprising a trip unit slot;
- and
- a trip unit mounted in the trip unit slot of the frame, the trip unit comprising a terminal accessible from a top side of the trip unit above the trip unit slot, the top side facing away from the trip unit slot, the terminal configured to secure a wire to the trip unit,
- wherein one of a wall of the frame adjacent to the trip unit slot and a side of the trip unit facing the wall comprises a protrusion and the wall of the frame or the side of the trip unit without the protrusion comprises an opening, wherein the wall of the frame comprising the opening or the protrusion comprises an exterior wall of the frame, wherein the top side of the trip unit comprising access to the terminal is perpendicular to the side of the trip unit comprising the protrusion or opening, wherein the protrusion conforms to the opening and wherein the protrusion and opening are positioned to oppose movement of the trip unit in a direction of a force resulting from securing the wire in the terminal.
4 more elements
Dependencies are inferred from the claim text.