Jump to content

Double tap on old SquareD again


Recommended Posts

A 1959 SquareD panel has two double taps. One is for the doorbell transformer installed and we assume approved by the authority in 1959.

The other was added a decade or two later when the basement was dressed up.

I don't believe the breaker is rated for double tapping due to its age.

I believe the doorbell double tap is acceptable but not good practice.

I called for the electrician to check the added circuit installation and repair it.

When did SquareD start adding the two wire rating to their breakers?

Click to Enlarge
tn_2015529113851_dubtap.jpg

32.68 KB

Click to Enlarge
tn_2015529113916_DbSqD.jpg

53.6 KB

Click to Enlarge
tn_2015529113940_SqD.jpg

68.9 KB

Link to post
Share on other sites

A 1959 SquareD panel has two double taps. One is for the doorbell transformer installed and we assume approved by the authority in 1959.

The other was added a decade or two later when the basement was dressed up.

I don't believe the breaker is rated for double tapping due to its age.

I believe the doorbell double tap is acceptable but not good practice.

I called for the electrician to check the added circuit installation and repair it.

When did SquareD start adding the two wire rating to their breakers?

I don't know when that happened. It might be interesting to find out, but from a need-to-know perspective, there'd be little point. As Ken pointed out, the ones that do accept two wires are readily identifiable in the field.

I disagree about the doorbell transformer double tap being acceptable. It was wrong in '59 and it's wrong today.

Link to post
Share on other sites

A 1959 SquareD panel has two double taps. One is for the doorbell transformer installed and we assume approved by the authority in 1959.

The other was added a decade or two later when the basement was dressed up.

I don't believe the breaker is rated for double tapping due to its age.

I believe the doorbell double tap is acceptable but not good practice.

I called for the electrician to check the added circuit installation and repair it.

When did SquareD start adding the two wire rating to their breakers?

I don't know when that happened. It might be interesting to find out, but from a need-to-know perspective, there'd be little point. As Ken pointed out, the ones that do accept two wires are readily identifiable in the field.

I disagree about the doorbell transformer double tap being acceptable. It was wrong in '59 and it's wrong today.

The breakers I question are SquareD with two grooves in the bottom plate but a round washer for a top plate. I am calling those out for repair that is.

Doorbell double tap - I do not disagree.

The doorbell works fine though and has caused no obvious problem riding along on the breaker.

Link to post
Share on other sites

I say when replacements are no longer readily available.

I was working on a 1995 Westinghouse panel two weeks ago and needed a breaker, nobody had them. Wholesale to Big Box Mart, nobody. Obsolete before the legal age.

Eaton took them over and supplies replacement parts.

I'm surprised to hear that a reputable electrical supply house couldn't fix you up with an appropriate replacement breaker.

Link to post
Share on other sites

Manufacturers buy up other companies and then finding replacement breakers with the correct name on them is a problem. Sometimes manufactures publish a list of acceptable replacements, sometimes not. Technically, then maybe the panel is obsolete. I just had this issue with a Crouse Hinds panel in my house. I put a Seimens breaker in it and am not going to loose any sleep (except maybe the night before the HI comes when I am selling the house).

Link to post
Share on other sites

Manufacturers buy up other companies and then finding replacement breakers with the correct name on them is a problem. Sometimes manufactures publish a list of acceptable replacements, sometimes not. Technically, then maybe the panel is obsolete. I just had this issue with a Crouse Hinds panel in my house. I put a Seimens breaker in it and am not going to loose any sleep (except maybe the night before the HI comes when I am selling the house).

There's no reason to use a breaker that has the same name brand on it as long as the breaker is listed for use in the panel. There are "classified" breakers out there for most of the older panels out there, certain for Crouse Hinds and Westinghouse.

Link to post
Share on other sites

Jim, you are correct. I know Cutler Hammer makes breakers that they say are rated for use in a Crouse Hinds panel. Some would say they are not approved by the manufacturer. That did not bother me, but they were not available at the big box store on the Sunday that I needed one.

The breaker I needed was for an arc welder, so I'll probably remove that circuit anyway when I sell the house.

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...