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The wire gauge for a 480-volt disconnect typically depends on the ampacity required for the specific application and the length of the run. For most applications, using a wire gauge of 10 to 4 AWG copper wire or 8 to 2 AWG aluminum wire is common for circuits up to 60 amps. Always refer to the National Electrical Code (NEC) and local regulations for precise requirements and consider factors such as temperature rating and installation conditions. It's best to consult a licensed electrician for proper sizing based on your specific needs.
What else can I help you with?
What color should a H2 Conductor on 480 volt transformer should be marked?
The conductor for H2 connection on a 480 volt wire transformer should be marked:
Can you tape a 480 volt color wire with 120 volt phase tape?
No, it is not safe or recommended to tape a 480 volt color wire with 120 volt phase tape. The colors denote different voltage levels, and using incorrect voltage tape can lead to electrical hazards and potential safety risks. It is important to always use the appropriate voltage-rated materials as per industry standards and regulations.
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.
How do you wire a 277 volt heater from 480 volt box?
Answer for USA, Canada and countries running a 60 Hertz supply service.The 277 volt heater can be wired to a single pole breaker in a 3 phase 4 wire 480 volt distribution panel. The breaker should be sized to the amperage draw of the heater. 277 volts is the star point (wye) voltage of a 480 3 phase system. 480 / 1.73 = 277 volts. The third answer is not correct, two phase legs of a 480 volt system will give you 480 volts. It is the phase leg to ground (neutral) that gives you the 277 volts.A 277 Volt heater or device may not be wired to a 480 Volt circuit or box. A 277 Volt device may only be wired to a circuit rated for 277V/480V equipment.2 legs of 480 volts will give you 277. But since you don't know the answer you probably shouldn't be doing it! Please don't kill yourself, hire a licensed electrician.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energizedIF YOU ARE NOT REALLY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.
If building is serviced with 480 volts and you put a meter between ground and hot what will be the reading?
For alternating current, and assuming the supply transformer is properly grounded, you will have 240 volts to ground. 480 volts; single phase will have Line1 and Line2, both with 240 to ground and 480 across both Lines : three phase will have Line1, Line2, and Line3, all will have 240 to ground, and 480 across any two Lines. Same is true for 240 volt service, 120 to ground and 240 across. 120 volt service is 240 volt service using ground as neutral.
What color should a H2 Conductor on 480 volt transformer should be marked?
The conductor for H2 connection on a 480 volt wire transformer should be marked:
What is the volt drop on a cable 912 meters 480 volts and load of 54 amps?
The volt drop on a cable 912 meters 480 volts and load of 54 amps is 5% if you use 2/0 AWG wire and 2.4% if you use 300MCM wire. See Related Links below
Can you tape a 480 volt color wire with 120 volt phase tape?
No, it is not safe or recommended to tape a 480 volt color wire with 120 volt phase tape. The colors denote different voltage levels, and using incorrect voltage tape can lead to electrical hazards and potential safety risks. It is important to always use the appropriate voltage-rated materials as per industry standards and regulations.
Can you run 480 volt motors in a 380 volt system?
Can I run 480 volt , 60 HZ motor at a 380 volt , 60 Hz system?
Can you use a 240 volt 3 phase disconnect with 460 volt?
It's possible, but not at all economic. Usually the 240V (sure it's not 277?) has been stepped down from 480V service already. Sounds like this is a commercial application. 480 is rare in residential, but quite common in commercial. If you need 480, you'll need to get ahead of the step down transformer.AnswerYou cannot obtain a three-phase supply from a single-phase supply.
Is a 300 volt wire good to connect a range?
The 300 volt insulation rating on wire is the maximum amount of voltage that can be applied to that wire. If your range falls within that range then it is safe to use. Some commercial ranges use 480 and 575 volts. For theses types of ranges the 300 volt wire will not do, it will have to be wire with a conductor whose insulation rating is 600 volts or greater.
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.
In a three phase four wire wye system having 277V for lighting the three phase motors operate on what voltage?
480 Volt
What is the required wire size for a 230 feet run 480 volt 100 amp?
Depends on length. The more length, the more resistance.
Can 480 volt electric be run in emt conduit?
Yes 480 volt electric wiring can be run in emt conduit.
A 480-volt circuit has an impedace of 60 ohms what is the current?
480 volts and 60ohm impedence current = volt/impedence current=480/60 current=8ampeares
How do you wire a 277 to 120 volt transformer?
The voltage 277 volts is a three phase line to neutral voltage of a 480 volt system. What is needed for the protection of the transformer is a two pole breaker from the 480 volt CDP (Central Distribution Panel). The breaker will be sized to the KVA of the transformer. The wire will be sized to the breaker plus 25%. The electrical code requires that on motor and transformer feeders, they be sized to 125% of the total current capacity of the equipment.
