Smart Ballast

[Minuteman]

Just curious, would a T8 ballast that had been installed connected to one system, say 277V, be installed on 120V and work properly? And back and forth?

 

[ty]

Just curious, would a T8 ballast that had been installed connected to one system, say 277V, be installed on 120V and work properly? And back and forth?

I have actually never tried it, but theoretically, it should work.

I have an ADVANCE #ICN-4P32-SC unopened here. It is a Intellivolt 120v-277v. I'll open the package and see if there is anything in there, otherwise, check their site for any info

 

[ty]

Neither the Ballast label or the paperwork that came with it, say anything to the contrary of what you suggest.

Edit: www.advancetransformer.com/support for technical data sheets and frequently asked questions

 

[nakulak]

I know that this has failed to work on some exit lights we tried to reuse one time, but other than that never tried it.

 

[Minuteman]

Just wondering if it is like a one time deal. In other words, the first voltage applied configures something inside for that voltage.

 

[RETRAINDAILY]

I had my t5 ballasts temped in 120v for 3 months before I got utility clearance then changed them over to 277v not a problem

 

[ty]

I had my t5 ballasts temped in 120v for 3 months before I got utility clearance then changed them over to 277v not a problem

I can believe that.

 

[Minuteman]

So, Ive been schooled by a guy that claims needing daily retraining? :grin:

Thanks man, I appreciate it!

 

[macmikeman]

When dual rated fluorescent ballasts first started showing up I ran across some that would latch to the 277 level and then you couldn't reverse them back to 120, but I haven't seen that in a long time now.

 

[charlietuna]

I agree with MACMIKE . They can be re-used to go to the higher voltage and will work. But once used on the higher voltage cannot be re-used on the lower voltage. When they first came out we retro-fitted a prison and it was low voltage, one day they had a lightning strike close by and about half the ballasts stopped working -- end result was from the manufacturer, that the ballasts latched on to the high voltage setting and would not work on the 120 normal supply anymore??? What! They had us change them all to 120 volt single voltage ballasts....

 

[George Stolz]

I had my t5 ballasts temped in 120v for 3 months before I got utility clearance then changed them over to 277v not a problem

Same here, but I've never had occasion to switch from 277 to 120, as far as I can recall. I'm not sure.

 

[jumper]

I have an experiment going on with these smart ballasts right now. I have them hooked up on 120, 208, 240, and 277. I started the experiment right before christmas. I want to let them burn at least 30 days, and then I am going to start swapping them around.