ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
dsk 13
Admin 3
Recent Posts
electircal ageing test on IPC
by SIAME. 08/15/17 02:43 AM
electrical aging test on IPC
by gfretwell. 08/15/17 12:27 AM
Bathroom electrical
by gfretwell. 08/14/17 02:05 AM
"Line level" audio on Cat 5?
by gfretwell. 08/08/17 10:39 PM
Fire alarm phone lines and color coding
by gfretwell. 08/08/17 10:26 PM
New in the Gallery:
Housebilding DIY wiring
Popular Topics(Views)
239,919 Are you busy
175,496 Re: Forum
167,771 Need opinion
Who's Online Now
0 registered members (), 65 guests, and 15 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#184395 - 02/09/09 05:08 PM Old Square D Switch  
Admin  Offline

Administrator
Member
Joined: Oct 2000
Posts: 3,450
NY, USA
Quote
My grandfather was an electrician. He just found and gave me this old disconnect made by square D .

The enclosure is made of porcelain. Has patent info on back for patent Oct 27 1914, 1916 and 1919 Says "making electricity safe for everyone" on front.

This is definetly before my day, anyone know anything about this era equipment?

- Jim K.

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]


Tools for Electricians:

#184396 - 02/09/09 05:13 PM Re: Old Square D Switch [Re: Admin]  
Admin  Offline

Administrator
Member
Joined: Oct 2000
Posts: 3,450
NY, USA
My apologies to Jim.

I just found these in my Email folder and have apparently been sitting on them for about 8 Months blush

Bill


#185928 - 04/05/09 01:12 AM Re: Old Square D Switch [Re: Admin]  
packrat56  Offline
Member
Joined: Mar 2008
Posts: 76
MT, U.S.
Nice find, didn't know square D was around then.


I have a sense of adventure, I just keep it leashed with common sense.

#185933 - 04/06/09 02:01 AM Re: Old Square D Switch [Re: packrat56]  
Rewired  Offline
Member
Joined: Jan 2006
Posts: 558
Hamilton, Ontario, Canada
A porcelain enclosure??? Perhaps this switch was intended for use in a hostile environment of some kind??

A.D


#185934 - 04/06/09 10:34 AM Re: Old Square D Switch [Re: Rewired]  
ghost307  Offline
Member
Joined: May 2005
Posts: 907
Chicago Illinois USA
I picked up a few porcelain outlet boxes a few years ago.
My guess is that at the time it was cheaper to make porcelain than metal. Also, since many people were scared of this new fangled electricity, they probably would have felt safer with touching something non-conductive.


Ghost307

#185941 - 04/07/09 01:18 AM Re: Old Square D Switch [Re: ghost307]  
JBD  Offline
Member
Joined: Jul 2001
Posts: 599
WI, USA
Square D started around 1905 as a merger between a fuse company and Detroit switch.
In those days electrical equipment was almost all open knife blades. Detroit started to put their knife switches in enclosures thereby make them Safety Switches. They put an embossed letter D, in a square, on the front of their switches. After awhile people began asking for that 'Square D' switch, so the company name was changed to Square D.


Last edited by JBD; 04/07/09 01:18 AM.

#185944 - 04/07/09 11:45 AM Re: Old Square D Switch [Re: JBD]  
mamills  Offline
Member
Joined: Nov 2001
Posts: 745
Wharton, Texas, USA
Hi JBD;
That's an interesting little bit of history on Square D. I've always wondered how the Square D name came to be. Thanks.

Mike



Member Spotlight
electure
electure
Fullerton, CA USA
Posts: 4,260
Joined: December 2000
Show All Member Profiles 
Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.013s Queries: 15 (0.002s) Memory: 0.7867 MB (Peak: 0.9422 MB) Zlib enabled. Server Time: 2017-08-19 01:54:10 UTC