ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Recall notice: Southwire wi-fi wall switches
by sparkyinak. 03/15/18 06:03 PM
Goodman Manufacturing Recalls Modular Blowers
by Admin. 03/13/18 10:40 PM
MAAX Spas Recalls Hot Tubs and Swim Spas
by Admin. 03/13/18 10:29 PM
New in the Gallery:
Housebilding DIY wiring
SE cable question
Who's Online Now
0 registered members (), 29 guests, and 8 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Square D generator interlock #58120
10/30/05 08:14 PM
10/30/05 08:14 PM
Grover  Offline OP
Joined: Jan 2005
Posts: 109
Sebago, ME, USA
I thought I saw a post here a little while back about the Square D kit that interlocks a 100A main QO breaker with a 30A backfed generator breaker, but I can't seem to find it.....

Does anyone have a part no.? I looked in the Digest, and couldn't find it there either...


Work Gear for Electricians and the Trades
Re: Square D generator interlock #58121
10/30/05 08:41 PM
10/30/05 08:41 PM
Ron  Offline
Joined: Mar 2002
Posts: 582
White Plains, NY$file/RetaiLinkDec2002.pdf

Re: Square D generator interlock #58122
10/30/05 08:58 PM
10/30/05 08:58 PM
caselec  Offline
Joined: Apr 2002
Posts: 558
San Jose, CA
I have never used or seen the interlock kit that Ron posted but they also make an interlock that mounts over two 2-pole QO breakers mounted next to each other in a loadcenter. It also secures both breakers as required for back feed applications.

Look at the PK4DTIM4** kits in the middle of the chart here:


Curt Swartz
Re: Square D generator interlock #58123
10/31/05 01:09 AM
10/31/05 01:09 AM
Grover  Offline OP
Joined: Jan 2005
Posts: 109
Sebago, ME, USA
thanks guys 0 I'll call my supply house in the morning


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


Member Spotlight
Attic Rat
Attic Rat
Bergen Co.,N.J. USA
Posts: 524
Joined: December 2003
Show All Member Profiles 
Top Posters(30 Days)
Admin 5
Trumpy 5
Popular Topics(Views)
244,398 Are you busy
181,512 Re: Forum
171,562 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.024s Queries: 14 (0.003s) Memory: 0.9590 MB (Peak: 1.0899 MB) Zlib enabled. Server Time: 2018-03-18 11:58:02 UTC