Current transformer retainers for enclosure knock outs

Patent metadata

Field	Value
Publication number	US-2016254652-A1
Application number	US-201315032787-A
Country	US
Kind code	A1
Filing date	Nov 26, 2013
Priority date	Nov 26, 2013
Publication date	Sep 1, 2016
Grant date	—

Abstract

Current transformer (CT) retainers ( 100, 200, 300, 400 ) are disclosed for use in an electrical enclosure ( 510 ) for an electrical panel ( 500 ). An exemplary CT retainer includes a body that has one end portion ( 110, 210, 410 ) configured to mount onto a wall ( 140 ) of the electrical enclosure. The body of the CT retainer also includes an opposite end portion with a basket ( 150, 250, 350, 450 ) for housing a CT. The basket includes a flexible clip ( 160 and 180, 260 and 280, 360 and 380, or 470 ) which is con figured to flex to allow insertion of the CT into the basket or removal of the CT from the basket.

First claim

1 . A retainer for mounting a current transformer (CT) onto an electrical enclosure for an electrical panel, comprising:
a body having one end portion configured to mount onto a wall of the electrical enclosure and an opposite end portion having a basket for housing a CT, the basket including a flexible clip configured to flex to allow insertion of the CT into the basket or removal of the CT from the basket.

2 . The retainer of claim 1 , wherein the one end portion includes an adhesive.

3 . The retainer of claim 1 , wherein the one end portion includes a snap joint for mounting the one end portion into an opening in a wall of the electrical enclosure, the snap joint comprising a plurality of resilient cantilevers configured to extend through the opening and to engage the wall.

4 . The retainer of claim 1 , wherein the flexible clip comprises:
a top portion to be arranged above a top of the CT; a middle portion having to a pair of extending arms to be arranged on opposite sides of the CT; and a bottom portion to be arranged below a bottom of the CT, wherein an end of the top portion or the bottom portion includes a hook configured to engage a side or portion of the CT to retain the CT in the basket.

5 . The retainer of claim 4 , wherein the top portion includes a groove or an opening configured to retain a portion of a cable to be monitored by the CT.

6 . The retainer of claim 5 , wherein the top portion further includes a wire retainer configured to retain a cable not monitored by the CT.

7 . The retainer of claim 4 , wherein the bottom portion includes a groove or an opening configured to retain a portion of a cable to be monitored by the CT.

8 . The retainer of claim 7 , wherein the bottom portion further includes a wire retainer configured to retain a cable not monitored by the CT.

9 . The retainer of claim 1 , wherein the basket further includes a housing having an aperture configured to receive a portion of the flexible clip, the flexible clip comprising a base portion for supporting the CT and two opposing flexible cantilever arms which are configured to be arranged on opposing sides of the CT and to engage the housing through the aperture.

10 . The retainer of claim 9 , wherein the aperture comprises a plurality of apertures, each of the apertures configured to receive the flexible clip at a different position in the housing.

11 . The retainer of claim 9 , wherein the two opposing flexible cantilever arms of the flexible clip each include a finger which snaps into corresponding slots on opposing side walls of the housing, when the flexible clip is engaged to the housing through the aperture.

12 . An electrical enclosure for an electrical panel comprising:
a wall; and a retainer for mounting a current transformer (CT) onto the wall, the retainer including a body having one end portion mounted onto the wall and an opposite end portion having a basket for housing a CT, the basket including a flexible clip configured to flex to allow insertion of the CT into the basket or removal of the CT from the basket.

13 . The electrical enclosure of claim 12 , wherein the flexible clip comprises:
a top portion to be arranged above a top of the CT; a middle portion having to a pair of extending arms to be arranged on opposite sides of the CT; and a bottom portion configured to be arranged below a bottom of the CT, wherein an end of the top portion or the bottom portion includes a hook configured to engage a side or portion of the CT to retain the CT in the basket.

14 . The electrical enclosure of claim 12 , wherein the basket further includes a housing having an aperture configured to receive a portion of the flexible clip, the flexible clip comprising a base portion for supporting the CT and two opposing flexible cantilever arms which are configured to be arranged on opposing sides of the CT and to engage the housing through the aperture.

15 . The electrical enclosure of claim 14 , wherein the aperture comprises a plurality of apertures, each of the apertures configured to receive the flexible clip at a different position in the basket.

16 . The electrical enclosure of claim 14 , wherein the two opposing flexible cantilever arms of the flexible clip each include a finger which snaps into corresponding slots on opposing side walls of the housing, when the flexible clip is engaged to the housing through the aperture.

Assignees

• Schneider Electric Usa Inc

Inventors

• Rodriguez Najera Gerardo
• Rosas Salazar Cristina

Classifications

• H01F27/06

  Mounting, supporting or suspending transformers, reactors or choke coils {not being of the signal type} · CPC title

• H02B1/305

  Cable entries · CPC title

• H01F27/02 Primary

  Casings · CPC title

• H02B1/32 Primary

  Mounting of devices therein · CPC title