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A 277 volt lighting fixture is one that is usually used in an industrial application. The reason for this is the voltage rating. A voltage potential of 277 volts is the voltage to neutral (ground) of a three phase four wire 480 volt distribution system. 480 volts / 1.73 = 277 volts. Rather than having to add a transformer to the system to provide 120 volts for lighting, manufactures produced a ballast for fluorescent fixtures that operates on the 227 volt potential.
What else can I help you with?
Is a fluorescent light grounded?
If you are talking about the lamp then the answer is no. If you are talking about the fluorescent fixture, it should be. It is the fixture grounding that helps the tube to ignite. because of the close proximity to the metal of the fixture. There are many occasions when the fixture will not operate, but as soon as the ground is connected the fixture operates fine.
Can you put a black light bulb in any fluorescent fixture?
Yes a black lamp tube will work in a fluorescent fixture. Guess you don't remember the early 70's.
Can a fluorescent light fixture be hooked up to a dimmer?
Yes. It depends on the fixture. If the bulb runs at line voltage (i.e. without a transformer), then yes. If it's a low voltage halogen bulb, such as a 12 volt running off of a transformer, then you'll need to find out if the transformer is dimmable.
What changes are to be made for a fluorescent lamp circuit to work if ac supply is replaced by dc?
A fluorescent light fixture is designed to operate on an AC voltage supply. To have the fixture operate off of a DC supply a power inverter would have to be installed. The power inverter would then change the DC to AC for the fixture to operate. These power inverters are reasonably priced these days and can be bought at most DIY stores.
Are the fluorescent bulbs going away or the actual fixture?
It is unlikely that actual light fixtures will be going away any time soon. Fluorescent bulbs will eventually be obsolete as LED and newer technologies take over.
Does a 277 volt fluorescent fixture cost less to operate than a 120 volt fixture?
Not necessarily. It's the wattage of the lamps that determine how much power is used. 277V lighting merely allows for more lights to be on a circuit than if they were on a 120V. The current that is printed on the ballast, times the voltage the ballast is connected to, is what determines the cost to operate the fixture. This is the true wattage of the fixture. The wattage of the lamps are independent as new electronic ballasts can power a numerous amount of tubes of various wattages.
Will 277-volt fluorescent lights work on 220-240 systems?
Pragmatically - YES A manufacturing company I know of has been using 277 V fluorescent ballasts on 240 V service for many years, and they are working just fine.
How can you attach a 120 v Light Fixture to a 277 v system do I need a ballast so what kinda of ballast?
To attach a 120V light fixture to a 277V system, you will need a step-down transformer with a 277V primary and 120V secondary. This will allow you to safely power the light fixture at the correct voltage. You do not need a ballast in this case, as ballasts are typically used with fluorescent lights and not for altering voltage levels.
What is a pin based fluorescent light fixture?
A pin based fluorescent light fixture is the type of fixture that takes fluorescent tubes. On each end of the fluorescent tubes there are contact pins. These pins are used to hold the tube in the fixture and to supply the voltage to the tube from the fixture's ballast.
Can you use a 277 volt high pressure sodium light in my garage?
Not unless you have 277 volts in your garage. Open the fixture and check the ballast. Some of the commercial fixtures have multi tap connections for different voltages. If 120 or 240 volt tap is present then you can use the fixture.
Do you have a diagram for converting 277 volt light to 110 volt?
It sounds like the fixture that you acquired was from an industrial site. 277 volts is the star point voltage of a 480 three phase system. You will have to change the ballast out to the proper voltage that you need. If you want to spend some money you can get a step up auto transformer to make the conversion but the cost would off set the cost of a new fixture many times.
How to remove a fluorescent light fixture?
To remove a fluorescent light fixture, first turn off the power at the circuit breaker. Then, remove the cover or diffuser, and unscrew the fixture from the ceiling or wall. Disconnect the wires and carefully lower the fixture down. Be sure to dispose of the fluorescent tubes properly.
Is a fluorescent light grounded?
If you are talking about the lamp then the answer is no. If you are talking about the fluorescent fixture, it should be. It is the fixture grounding that helps the tube to ignite. because of the close proximity to the metal of the fixture. There are many occasions when the fixture will not operate, but as soon as the ground is connected the fixture operates fine.
How do you wire 250 watt metal halide 277v with only one line and one common?
That is all that is needed to wire the fixture. The 277 volts is the line to neutral of a 480 volt three phase system. Any one of L1, L2 or L3 to the neutral will give you the 277 volts that you need to connect the fixture so that it will operate.
In a normal 277 volt situation is there one hot leg or two?
277 volt systems aren't normail systems
Will 120 - 277 volt electronic fluorescent ballasts work on 208 volts?
NO! a 120-277 electronic ballast requires one "hot" wire and a neutral from either a 110V or 277V supply. If you supply it with two "hot" wires from a 208 V supply, it will instantly burn up.Yes. A ballast with a specification range of 120 volt to 277 volt will work on 208 volt. These ballast use intelligent voltage sensing technology and it does not matter if the source is a hot and neutral or two (2) hots. Don't believe it? Call a ballast manufacturer instead of giving incorrect answers.
Is there a way to install a 277V light on a 120V circuit?
no ----------------------------------------------------------------------------------- Stepdown transformer. More expensive than buying the correct light fixture. Y-THINK-Y
