277 volt lighting

[Karl Fields]

Came across an exceptional deal on 30 each, damp location, 3 bulb T8 with glass covers. Only issue is the ballast. Seems they all have a single 277 volt, single voltage ballast. Being as I don't have 3 phase guess I am going ballast shopping.

Question is, with three bulbs, what am I looking for? 96 watt ballast (38 watt x 3), or two smaller ones, one running two bulbs and the third bulb on it;'s own ballast?

Well, really, I want to convert the incoming 120 VAC to 277, but...
Thanks,
Karl

 

[Charles (in GA)]

Most four bulb ballasts will handle two, three or four bulbs. Just follow the wiring diagram on them.

Charles

 

[Speedy Petey]

Ballasts are rated in lamp configurations, not wattage.

A standard 3-lamp 32W electronic ballast will work nicely. http://www.homedepot.com/buy/ge-pro...p-replacement-ballast-74458.html#.UPVNeGdZOM0

Hopefully you got these things next to free. That's a lot of work and money to convert.
You're looking at $500 at least, if you need all 30.

 

[Speedy Petey]

Jeeze, HD is OUT of their mind with that price ($27)!!

Here is one for half as much: http://www.amazon.com/dp/B003R3ISLU/?tag=atomicindus08-20

 

[kbs2244]

At qty 30 it would be worth a trip to your local electric distributor about a qty buy.

 

[DoyleDee]

I think that for residential lighting, you can only have 120... 277 is a commercial/industrial application.