ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Increasing demand factors in residential
by gfretwell - 03/28/24 12:43 AM
Portable generator question
by Steve Miller - 03/19/24 08:50 PM
Do we need grounding?
by NORCAL - 03/19/24 05:11 PM
240V only in a home and NEC?
by dsk - 03/19/24 06:33 AM
Cordless Tools: The Obvious Question
by renosteinke - 03/14/24 08:05 PM
New in the Gallery:
This is a new one
This is a new one
by timmp, September 24
Few pics I found
Few pics I found
by timmp, August 15
Who's Online Now
0 members (), 255 guests, and 16 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
#45190 11/20/04 11:31 PM
Joined: Sep 2003
Posts: 60
G
gunther Offline OP
Member
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.

#45191 11/22/04 12:38 PM
Joined: Apr 2002
Posts: 2,527
B
Moderator
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
Joined: Jan 2004
Posts: 615
J
Member
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.


Link Copied to Clipboard
Powered by UBB.threads™ PHP Forum Software 7.7.5