Circuit breaker having line terminal and associated indicating method

Patent metadata

Field	Value
Publication number	US-2016141135-A1
Application number	US-201615007353-A
Country	US
Kind code	A1
Filing date	Jan 27, 2016
Priority date	May 14, 2013
Publication date	May 19, 2016
Grant date	—

Abstract

A line terminal is for an electrical switching apparatus. The electrical switching apparatus includes a stationary contact and a movable contact structured to move into and out of engagement with the stationary contact in order to close and open the electrical switching apparatus, respectively. The line terminal includes a lip portion structured to be connected to the stationary contact in order to provide an electrical pathway therebetween; an arm portion extending from the lip portion, the arm portion having an engaging portion structured to receive and engage a conductive post member and provide an electrical pathway between the conductive post member and the stationary contact; a neck portion extending from the arm portion; and a tab portion extending from the neck portion and being located internal with respect to the engaging portion.

First claim

What is claimed is:

1 . A line terminal for an electrical switching apparatus, said electrical switching apparatus comprising a stationary contact and a movable contact structured to move into and out of engagement with said stationary contact in order to close and open said electrical switching apparatus, respectively, said line terminal comprising:
a lip portion structured to be connected to said stationary contact in order to provide an electrical pathway therebetween; an arm portion extending from said lip portion, said arm portion having an engaging portion structured to receive and engage a conductive post member and provide an electrical pathway between said conductive post member and said stationary contact; a neck portion extending from said arm portion; and a tab portion extending from said neck portion and being disposed internal with respect to said engaging portion.

2 . The line terminal of claim 1 wherein said line terminal is structured to move between a FIRST position and a SECOND position; and wherein, when said line terminal moves from the FIRST position toward the SECOND position, said neck portion and said tab portion move with respect to said arm portion and said lip portion.

3 . The line terminal of claim 2 wherein said line terminal is structured to move between the FIRST and SECOND positions responsive to engagement with said conductive post member.

4 . The line terminal of claim 2 wherein said neck portion has a first end and a second, opposing end; wherein the first end extends from said arm portion; wherein the second end extends from said tab portion; and wherein, when said line terminal moves from the FIRST position toward the SECOND position, said neck portion and said tab portion rotate about the first end.

5 . The line terminal of claim 4 wherein, when said line terminal moves from the FIRST position toward the second position, said neck portion and said tab portion rotate in a first direction toward said lip portion.

6 . The line terminal of claim 1 wherein said line terminal is a bolt-on line terminal.

7 . The line terminal of claim 1 wherein said line terminal is conductive.

8 . An electrical switching apparatus comprising:
a stationary contact; a movable contact structured to move into and out of engagement with said stationary contact in order to close and open said electrical switching apparatus, respectively; and a line terminal comprising:
a lip portion connected to said stationary contact in order to provide an electrical pathway therebetween,
an arm portion extending from said lip portion, said arm portion having an engaging portion structured to receive and engage a conductive post member and provide an electrical pathway between said conductive post member and said stationary contact,
a neck portion extending from said arm portion, and
a tab portion extending from said neck portion and being disposed internal with respect to said engaging portion.

9 . The electrical switching apparatus of claim 8 wherein said lip portion is connected to said stationary contact at a joint selected from the group consisting of a welded joint and a brazed joint.

10 . The electrical switching apparatus of claim 8 wherein said line terminal is structured to move between a FIRST position and a SECOND position; and wherein, when said line terminal moves from the FIRST position toward the SECOND position, said neck portion and said tab portion move with respect to said arm portion and said lip portion.

11 . The electrical switching apparatus of claim 10 wherein said line terminal is structured to move between the FIRST and SECOND positions responsive to engagement with said conductive post member.

12 . The electrical switching apparatus of claim 10 wherein said neck portion has a first end and a second, opposing end; wherein the first end extends from said arm portion;
wherein the second end extends from said tab portion; and wherein, when said line terminal moves from the FIRST position toward the SECOND position, said neck portion and said tab portion rotate about the first end.

13 . The electrical switching apparatus of claim 12 wherein, when said line terminal moves from the FIRST position toward the second position, said neck portion and said tab portion rotate in a first direction toward said lip portion.

14 . The electrical switching apparatus of claim 8 wherein said line terminal is a bolt-on line terminal.

15 . The electrical switching apparatus of claim 8 wherein said line terminal is conductive.

16 . A method of indicating whether an electrical switching apparatus has been used in a panelboard having a conductive post member, said electrical switching apparatus comprising a stationary contact, a movable contact structured to move into and out of engagement with the stationary contact in order to close and open the electrical switching apparatus, respectively, and a line terminal, said line terminal comprising a lip portion connected to the stationary contact in order to provide an electrical pathway therebetween, an arm portion extending from the lip portion and having an engaging portion, a neck portion extending from the arm portion, and a tab portion extending from the neck portion and being disposed internal with respect to the engaging portion, the method comprising the steps of:
extending said conductive post member through the engaging portion in order to provide an electrical pathway between said conductive post member and said stationary contact; moving said neck portion and said tab portion responsive to the extending step; and viewing said electrical switching apparatus.

17 . The method of claim 16 wherein said neck portion has a first end and a second, opposing end; wherein the first end extends from said arm portion; wherein the second end extends from said tab portion; and wherein the moving step further comprises:
rotating said tab portion and said neck portion about the first end.

18 . The method of claim 17 wherein the rotating step further comprises:
rotating said tab portion and said neck portion in a first direction toward said lip portion.

19 . The method of claim 16 wherein said lip portion is connected to said stationary contact at a joint selected from the group consisting of a welded joint and a brazed joint.

20 . The method of claim 16 wherein said line terminal is a bolt-on line terminal.

Assignees

• Eaton Corp

Inventors

• Whipple Michael Jerome
• Lias Edward Ethber

Classifications

• H01H1/5866

  characterised by the use of a plug and socket connector · CPC title

• H01H71/06

  Distinguishing marks, e.g. colour coding · CPC title

• H01R13/465

  Identification means, e.g. labels, tags, markings (H01R9/2475, H01R9/2683 take precedence) · CPC title

• H01R13/641

  by indicating incorrect coupling; by indicating correct or full engagement · CPC title

• H01H71/0264

  Mountings or coverplates for complete assembled circuit breakers, e.g. snap mounting in panel · CPC title