ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat Box
Recent Posts
Questioning the electrical norms
by HotLine1 - 03/04/21 12:35 PM
Lock-down Thread
by gfretwell - 03/03/21 12:38 PM
Northern Tool Recalls Powerhorse Generators
by Admin - 02/25/21 09:49 PM
You will never guess
by gfretwell - 02/25/21 07:48 PM
New in the Gallery:
Facebook follies, bad wiring
FPE in Germany pt.2
Who's Online Now
1 registered members (Scott35), 16 guests, and 23 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
fasco contactors #170238 10/29/07 10:29 PM
Joined: Mar 2005
Posts: 236
watersparkfalls Offline OP
Member
I installed three contactors for a fire surpression system, two of the three coils controlled by a switch which is fed from micro switch(normally closed) inside system. These two coils energized close contactor normally open and feed an air handler, and the second a hood which both must run simultaneously under normal conditions. The third contactor coil is controlled from the normally open of the micro switch in the system which is now in "EMERGENCY" mode and has de-energized the the air handler and is now energizing only the hood per fire marshall.

The problem is these fasco contactors keep vibrating and make alot of noise, the parts house guy told me to hit the contactor to get the armature back in line again (after replacing the two which run simultaneously) and quiet them down.....but just am not in mind set that a "hammer" is the answer.

Has anyone else had trouble with fasco? Think I am gonna go to grainger (instead of ma and pa's parts) and get different brand like alan bradley or square d. Cause I cant keep going every week to replace fasco.

Thanks,
H20

2017 / 2014 NEC & Related Books and Study Guides
Re: fasco contactors [Re: watersparkfalls] #170245 10/30/07 06:21 AM
Joined: Jul 2007
Posts: 265
W
wire_twister Offline
Member
I installed a Fasco on some outdoor Metal Halide lights, coil is controlled by a tork photocell, been installed for 3 years with no trouble. Mine is only energized after dark a far cry from being on 24/7. I did install a Square D contactor as a dead man switch on an electric stove for a fire supression system. This contactor has been pulled in 24/7 for about 4 years with no problem.


Jimmy

Life is tough, Life is tougher when you are stupid
Re: fasco contactors [Re: wire_twister] #170252 10/30/07 08:26 AM
Joined: Jun 2001
Posts: 161
M
Mike Wescoatt Offline
Member
I had a bunch of 200A Fascos installed feeding panels and they were noisy. Mostly a loud BAM when they switched, but they did make more buzzing than others I have dealt with. Personally I prefer Allen Bradley 100-C or 100-D for bigger loads. The seem to be quiet, small, modular, and I haven't had a bad one yet.


Mike Wescoatt
Re: fasco contactors [Re: watersparkfalls] #170254 10/30/07 09:12 AM
Joined: Jul 2002
Posts: 8,379
Trumpy Offline
Member
Originally Posted by watersparkfalls


The problem is these fasco contactors keep vibrating and make alot of noise, the parts house guy told me to hit the contactor to get the armature back in line again (after replacing the two which run simultaneously) and quiet them down.....but just am not in mind set that a "BFH" is the answer.



I think what might have happened here is that there may be some dirt or grit stuck between the pole pieces of the armature in the contactor.
If the two parts of the armature don't fit together squarely, there will be vibration as the side with the gap in it tries to pull the armature closer.
My advice would be to dismantle the contactor and check it, and if necessary give the pole faces abit of a rub with some fine abrasive paper, not too much though, the pole faces need to be clean and smooth.
Hope this helps.

Edit: I would get any advice like that given by the supply store guy in writing before actually taking to a contactor like that, thier returns policy may be a tad different with a broken contactor.

Last edited by Trumpy; 10/30/07 09:15 AM.
Re: fasco contactors [Re: Trumpy] #170496 11/04/07 04:07 PM
Joined: Mar 2005
Posts: 236
watersparkfalls Offline OP
Member
well I changed contactors to square d and haven't had any trouble. when you energize the coil you can really tell the difference in quality square d thunks quick and holds contacts tight....not a peep, buzz or hum to be heard.
i will never use fasco again,

thanks for the input.

H20


Featured:

2020 National Electrical Code
2020 National Electrical
Code (NEC)

* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
watersparkfalls
watersparkfalls
Washington...Not DC
Posts: 236
Joined: March 2005
Show All Member Profiles 
Top Posters(30 Days)
Popular Topics(Views)
275,745 Are you busy
209,659 Re: Forum
197,004 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.3