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A voltage of 277 is the line to neutral voltage of a 480 volt wye three phase system.
L1- N, L2 - N and L3 - N will give you 277 volts.
L1 to L2. L2 to L3 and L3 to L1 will give you 480 volts.
Wiring of three phase equipment should be in the domain of qualified journeyman electrician or apprentices under the supervision of a qualified journeyman electrician.
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What wire do I connect the 277 VAC wire to?
It depends on what 277 volt device you are trying to connect.
Can you wire a 240 volt window ac from a 277 volt feed?
no
What is a 277 volt fluorescent fixture?
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 is the benefits of using 277 volt electrical equipment?
with 3 phase lighting you do not have to use as large of wire and can use one neutral for every 3 current carrying conductors so it cut down on material costs ( as voltage increases current decreases) <<>> The voltage 277 is the star-point voltage of a 480 volt three phase system. By using a 480 volt wye system you have the dual ability of running 480 volt three phase equipment along with 277 volt lighting. The side advantage is the ability of using the phase voltage to ground (neutral) 480 / 1.73 = 277 volts for general lighting of the building the 480 volt equipment is located in.
What size wire is required for 277 volt fluorescent lighting?
Wire size is governed by amperage not voltage. Voltage is an insulation factor when talking about wire. Add up the amperage of fixtures you want in the circuit. Once that is found then the size of the wire can be calculated.
Can you use armored cable to wire 277 volt lights?
Yes.
Can you wire up a 240 volt single phase water heater to 277 volt single phase?
no
Is 277 volt one hot wire?
No, 277 volts is the line to neutral of a 480 volt wye three phase system. L1- N, L2 - N and L3 - N will give you 277 volts. L1 to L2. L2 to L3 and L3 to L1 will give you 480 volts.
Can you run 220 volt appliances off a 380 volt supply?
you could use a step down transformer if you had no other option. but the best thing to do is run a 220 feed directly from the fuse panel Step down transformers get very hot and do not last forever
Will you get shocked if you unsrew the hot wire on a 277 volt outlet to remove it?
ALWAYS turn off the power feed to a device and confirm there is no voltage before working on the device! 277 volts can kill you!
In a normal 277 volt situation is there one hot leg or two?
277 volt systems aren't normail systems
What is the voltage of a 3 phase 4 wire 277 volt lighting circuit?
The voltage of 277 volts is the wye of a three phase 480 volt system. Just as the voltage of 347 is the wye voltage of a three phase 600 volt system. To obtain these voltages for any three phase system, take the three phase voltage and divide it by 1.73. 480/1.73 = 277 volts, 600/1.73 = 347 volts.
