Selectronic Rcore Transformers - Page 2 - diyAudio
Go Back   Home > Forums > Amplifiers > Power Supplies

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 30th June 2012, 09:37 PM   #11
Salas is offline Salas  Greece
diyAudio Chief Moderator
 
Salas's Avatar
 
Join Date: Oct 2002
Location: Athens-Greece
In USA & Canada certainly Black=line, white=neutral. In Europe Brown=line, Blue=Neutral. In UK black used to be neutral, now is blue too. Now, something made with possibly French spec has a White, a Black, and a Yellow primary side. I.e. Go figure. It did not resonate or got hot in my case black or white to line either way.
  Reply With Quote
Old 30th June 2012, 09:40 PM   #12
kevinkr is offline kevinkr  United States
diyAudio Moderator
 
kevinkr's Avatar
 
Join Date: Sep 2004
Location: Boston, Massachusetts
Blog Entries: 6
I think I found their site here: Welcome to Selectronics (Guj) Pvt. Ltd

Since it is an Indian manufacturer that manufactures to customer specification it is hard to know whether any of their component lines have explicit UL/CSA or VDE approvals, that is not to say that OEM end customers do not get the required certifications. I'd be a bit cautious..
__________________
"Extraordinary claims require extraordinary evidence." - Carl Sagan
  Reply With Quote
Old 30th June 2012, 09:50 PM   #13
diyAudio Member
 
merlin el mago's Avatar
 
Join Date: Sep 2009
Location: Catalonia - Europe
Quote:
Originally Posted by kevinkr View Post
I think I found their site here: Welcome to Selectronics (Guj) Pvt. Ltd

Since it is an Indian manufacturer that manufactures to customer specification it is hard to know whether any of their component lines have explicit UL/CSA or VDE approvals, that is not to say that OEM end customers do not get the required certifications. I'd be a bit cautious..
This web isn't Selectronic web, Selectronic web is: Résultats de recherche pour : 'r-core'

Silchar site http://www.shilchargroup.com/

Last edited by merlin el mago; 30th June 2012 at 09:55 PM.
  Reply With Quote
Old 30th June 2012, 09:52 PM   #14
Salas is offline Salas  Greece
diyAudio Chief Moderator
 
Salas's Avatar
 
Join Date: Oct 2002
Location: Athens-Greece
I had been using black for neutral because it dawned on me, when they are made in India, what is the color code in India? Well, white appeared nowhere in my little google search but black appeared always as neutral both in single and 3 phase systems. Again, go figure bcs the two other colors did not make sense.
  Reply With Quote
Old 30th June 2012, 09:54 PM   #15
Salas is offline Salas  Greece
diyAudio Chief Moderator
 
Salas's Avatar
 
Join Date: Oct 2002
Location: Athens-Greece
Quote:
Originally Posted by merlin el mago View Post
This web isn't Selectronic web, Selectronic web is: Résultats de recherche pour : 'r-core'
Merlin, maybe you have kept their printed catalogue, they used to have some wiring page for R-Core in there, can you look? Maybe they show primary color with a black dot for hot?
  Reply With Quote
Old 30th June 2012, 10:03 PM   #16
diyAudio Member
 
merlin el mago's Avatar
 
Join Date: Sep 2009
Location: Catalonia - Europe
I'm Sorry Salas I haven't kept their printed catalog. By ear sounds better white for hot.
  Reply With Quote
Old 30th June 2012, 10:06 PM   #17
kevinkr is offline kevinkr  United States
diyAudio Moderator
 
kevinkr's Avatar
 
Join Date: Sep 2004
Location: Boston, Massachusetts
Blog Entries: 6
I have attached the datasheets for two lines of Silchar R-Core types which clearly state that they are built to comply with CSA and UL standards.

Not sure whether any of the types listed are those discussed here.

Please note also that Silchar is a UL registered firm. I think you can safely assume that the color codes are based on North American convention.
Attached Files
File Type: pdf R-Core model 1.pdf (110.8 KB, 75 views)
File Type: pdf R-Core model 2.pdf (112.0 KB, 49 views)
__________________
"Extraordinary claims require extraordinary evidence." - Carl Sagan
  Reply With Quote
Old 30th June 2012, 10:10 PM   #18
kevinkr is offline kevinkr  United States
diyAudio Moderator
 
kevinkr's Avatar
 
Join Date: Sep 2004
Location: Boston, Massachusetts
Blog Entries: 6
I'd recommend once we get to the bottom of this that the thread be cleaned up to reflect.
__________________
"Extraordinary claims require extraordinary evidence." - Carl Sagan
  Reply With Quote
Old 30th June 2012, 10:12 PM   #19
Salas is offline Salas  Greece
diyAudio Chief Moderator
 
Salas's Avatar
 
Join Date: Oct 2002
Location: Athens-Greece
Those that Selectronic sells are single primary but lets settle to Black=Line and White=Neutral when the OEM says UL standard. Yellow is electrostatic screen, that one is explained on their label.
  Reply With Quote
Old 30th June 2012, 10:21 PM   #20
Salas is offline Salas  Greece
diyAudio Chief Moderator
 
Salas's Avatar
 
Join Date: Oct 2002
Location: Athens-Greece
Quote:
Originally Posted by kevinkr View Post
I'd recommend once we get to the bottom of this that the thread be cleaned up to reflect.
Yes, but lets wait a little to see if someone has kept their printed catalog, the one they always pack with goods. That one surely had a guide page of how to use the two secondaries in parallel or series, don't remember if it was showing the primary side with dots too. I just looked, mine is gone too.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Help on transformers please Sgkho249 Tubes / Valves 18 8th April 2013 04:45 PM
Making CT transformers from two transformers infernal Parts 1 14th July 2011 08:42 AM
WTB 2 Rcore 22 or 24 vac dual sec. AVWERK Swap Meet 2 27th December 2010 07:27 PM
Help identifying a pair of output transformers and power transformers mjk130 Parts 3 30th January 2009 10:44 AM
Back to Back transformers as Isolation transformers mikee55 Chip Amps 2 17th March 2006 11:38 AM


New To Site? Need Help?

All times are GMT. The time now is 04:13 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2