Use edison base with 277

tank728

Member
Location
New Jersey
Occupation
Electrician
Morning fellas,

My client would like to reuse existing recessed lights. Currently fed from 120 volt source. The new feed is 277 volt. Originally the recessed lights were supposed to get replaced but budget concerns are becoming an issue. They want to know if lights can support 277 volts. Is the edison lamp base rated for 277?

Thanks

IMG_20201118_075743868.jpg
 

Jraef

Moderator
Staff member
Location
San Francisco Bay Area, CA, USA
Occupation
Electrical Engineer
You can get 600V rated medium base sockets, but changing the socket on a fixture to something other than what it was listed with violates the fixture listing, so again, if the fixture is not listed for 277V, you can't use it.
 

kwired

Electron manager
Location
NE Nebraska
Don't know what voltage HID lamps operate at, probably varies from one lamp to another to some extent, but I know they used different design on medium base sockets for higher withstand voltage on pulse start lamp types.
 

hillbilly1

Senior Member
Location
Atlanta,Ga
Morning fellas,

My client would like to reuse existing recessed lights. Currently fed from 120 volt source. The new feed is 277 volt. Originally the recessed lights were supposed to get replaced but budget concerns are becoming an issue. They want to know if lights can support 277 volts. Is the edison lamp base rated for 277?

Thanks

View attachment 2554326
Might want to check the voltage rating on that limiter on the side, it prevents installation of too high of wattage lamps, it may only be rated for 120 volts.
 
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