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120/277 volt light fixture 3

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stevemechanical

Mechanical
Mar 25, 2004
47
can a 120/277 volt compact fluorescent light fixture be installed in a 120/208 volt system?
 
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Yes.

I spoke with Osram-Sylvania, and their Uni-volt (mVolt equivalent) will operate with phase/phase 208v applied.
 
There may be code issues with some ballasts.
For instance, single pin lamps use one of the pins as a switch and the ballast must be wired so that the hot lead goes to the switch pin. (The socket has two contacts which are bridged by the pin on the end of the lamp when it is inserted in the socket.)
The approval may not cover an application with two hot wires.
respectfully
 
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