ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Single phase VS three phase generator
by 3nd4. 01/24/18 05:53 AM
AreMetal Ladders Ever OK For Electrical Work?
by HotLine1. 01/22/18 07:31 PM
Photocell
by twh. 01/22/18 05:06 PM
VDE 0100 to introduce AFCIs
by sparky. 01/20/18 05:09 PM
New in the Gallery:
Housebilding DIY wiring
SE cable question
Who's Online Now
0 registered members (), 4 guests, and 8 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Universal Ballasts #45190
11/20/04 10:31 PM
11/20/04 10:31 PM
G
gunther  Offline OP
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
Re: Universal Ballasts #45191
11/22/04 11:38 AM
11/22/04 11:38 AM
B
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.

Re: Universal Ballasts #45192
11/22/04 12:22 PM
11/22/04 12:22 PM
J
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.


Featured:

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

 

Member Spotlight
BEAMEUP
BEAMEUP
WA
Posts: 27
Joined: December 2004
Show All Member Profiles 
Top Posters(30 Days)
Admin 20
sparky 15
Popular Topics(Views)
243,607 Are you busy
180,425 Re: Forum
170,876 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.020s Queries: 14 (0.004s) Memory: 0.9494 MB (Peak: 1.0726 MB) Zlib enabled. Server Time: 2018-01-24 11:45:57 UTC