ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
Potseal 11
Recent Posts
Electrode boilers question
by annemarie1. 04/27/17 01:40 PM
Why cables look like they do
by LongRunner. 04/26/17 09:36 AM
Dimmable LED 2x4 lay in fixtures
by HotLine1. 04/24/17 05:43 PM
Old decora style outlets
by Lostazhell. 04/22/17 07:59 PM
Permit Snafus...AHJs and Contractors Jump in
by gfretwell. 04/22/17 01:11 PM
New in the Gallery:
SE cable question
Popular Topics(Views)
234,857 Are you busy
169,651 Re: Forum
162,893 Need opinion
Who's Online Now
0 registered members (), 55 guests, and 11 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#45190 - 11/20/04 11:31 PM Universal Ballasts  
gunther  Offline
Member
Joined: Sep 2003
Posts: 60
Seems like almost all the fixtures we put in have gone to universal voltage ballasts; able to be used with 120 or 277. I was just curious about what goes on inside the ballast. Perhaps a single winding with different voltage points? How would it distinguish between voltages or would it matter?
One of the main things that got me thinking about it was that I was thinking of temporarily firing one up on 120 and then later changing to 277. I would think you could do that with no problems, but just wanted to be sure.
We are extremely busy by the way, lots of overtime. Hope you guys are doing great.


Work Gear for Electricians and the Trades

#45191 - 11/22/04 12:38 PM Re: Universal Ballasts  
Bjarney  Offline
Moderator
Joined: Apr 2002
Posts: 2,527
West-Southern Inner-Northeast ...
You should be OK.

"AccuStart® offers installer-friendly universal input voltage (108–305 volts)"

On a magnetic HID ballast, do not try 277V on anything other than the 277V tap. It's a completely different beast.


#45192 - 11/22/04 01:22 PM Re: Universal Ballasts  
Jps1006  Offline
Member
Joined: Jan 2004
Posts: 615
Northern IL
I don't know this for sure, but I'd look into the possibility of those universal ballasts being burned into it's initial voltage. I don't know what makes me think this, may have been a conversation in passing with a rep about them. But I was under the impression that once they were wired one voltage, that was it.



Member Spotlight
watersparkfalls
watersparkfalls
Washington...Not DC
Posts: 216
Joined: March 2005
Show All Member Profiles 
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.010s Queries: 14 (0.003s) Memory: 0.7514 MB (Peak: 0.8756 MB) Zlib enabled. Server Time: 2017-04-28 08:17:18 UTC