AC/MC Adapters and Reducers... what options do I have?


Old 08-16-13, 02:44 PM
Nick D.'s Avatar
Thread Starter
Join Date: Feb 2013
Location: USA
Posts: 143
Received 0 Votes on 0 Posts
AC/MC Adapters and Reducers... what options do I have?

I think the picture speaks for itself. YES, I'm here with older equipment again (immediate postwar) but I figure this shouldn't be too problematic.

There is an OEM control box for the ventilator at the other end of the AC, no problems there. My problem is at this end... there is a split-ring clamp, but it is not the right size to clamp the cable.

3/4" EMT will fit the fan end, but I don't know why I would need to use that instead...
Attached Images  
Sponsored Links
Old 08-16-13, 03:47 PM
Join Date: Oct 2010
Location: USA
Posts: 563
Received 0 Votes on 0 Posts
Bring the armor cable into a single-gang box wit the correct sizing for both it and the fitting on the device? Just a thought. Or, look for a pipe fitting as a reducer from the tool to something that can clamp on to the armor cable...
Old 08-16-13, 07:11 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 54,679
Received 521 Votes on 491 Posts
Can you disconnect that metal armor cable.....looks like BX ?

Install a 3/4" threaded coupler and then use a 3/4" to 1/2" reducing insert. Then you can put on a proper 1/2" connector

Name:  12.jpg
Views: 388
Size:  31.3 KB
Attached Images  
Old 08-16-13, 08:00 PM
pcboss's Avatar
Forum Topic Moderator
Join Date: Jul 2002
Location: Maryland
Posts: 15,001
Received 40 Votes on 35 Posts
That looks like the pipe is just a sleeve for the cable. Is that the case?
Old 08-16-13, 09:32 PM
Justin Smith's Avatar
Join Date: Dec 2010
Location: Cressona, Pa, USA
Posts: 2,546
Received 0 Votes on 0 Posts
Run 3/4'' EMT into a 1900 box where you transition to your cable whip or cord.

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

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: