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Answer for USA, Canada and countries running a 60 Hertz supply service

If you use 500 MCM wire rated at 90 degrees C which is rated at 515 amps and allow for 80% ampacity of the wire which equals 412 amps, the conduit size will be three inches. If you use 700 MCM wire rated at 60 degrees C which is rated at 500 amps and allow for 80% ampacity of the wire which equals 400 amps, the conduit size will be three and one half inches.

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-energized

IF YOU ARE NOT REALLY SURE YOU CAN DO THIS JOB

SAFELY AND COMPETENTLY

REFER THIS WORK TO QUALIFIED PROFESSIONALS.

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What size rigid conduit for 400 amp service?

For a 400 amp service, you would typically use a minimum of 3-inch rigid metal conduit (RMC) to accommodate the large conductors required for that amperage. It's essential to consult local electrical codes and regulations to ensure compliance with sizing requirements for your specific installation.


What size conduit for 400amps?

The sizing of conduit systems that wire has to be pulled into is dependant on the physical size of the conductor being drawn into the conduit. The second governing factor is the conductor count of the specific conductor that is needed. A 500 MCM copper conductor with an insulation factor of 90 degrees C is rated at 430 amps. This is where the conductor count is need by the service, as to whether the service is single or three phase. In this specific case, the electrical code will allow both single and three phase installations to use the same size conduit. A maximum total of four 500 MCM conductors can be drawn into a 78 mm diameter conduit.


400 volts x 45 amps?

Multiplying 400 volts by 45 amps would give you a power output of 18000 watts, which is equivalent to 18 kilowatts (kW).


How many amps equals 400 watts?

Watts = Amps x Volts x Power Factor. Power Factor = 1 for resistive loads and gets smaller for inductive loads like motors. Assuming home voltage of 120 Volts and a PF = 1 your answer is 400/120 = 3.33 amps.


What size conduit and aluminum wire for a 400 foot run for 200 amps?

For a 200 amp service over a 400 foot run, you would need to use at least a 2-inch conduit to accommodate the size of the aluminum wire required. You would typically use 3/0 aluminum wire for this setup to ensure efficient power transmission and meet code requirements for voltage drop. It's recommended to consult with a licensed electrician to determine the exact specifications for your specific setup.

Related Questions

What size conduit for 200 amps?

120mm


What size conduit for 400 amp service?

4 inch rigid conduit


What size of copper wire can carry 30 amps?

Couple of things wrong here. 30 isn't a wire size. If you mean a wire that can carry 30 amps that would be # 10. Now it depends on how many # 10 wires you want to put into a conduit that governs the size of the conduit.


Is it legal to support a conduit from another conduit of the same size?

No, the conduit has to be supported individually from a supportive structure. The spacing of the strapping is related to the size of the conduit.


What size rigid conduit for 400 amp service?

For a 400 amp service, you would typically use a minimum of 3-inch rigid metal conduit (RMC) to accommodate the large conductors required for that amperage. It's essential to consult local electrical codes and regulations to ensure compliance with sizing requirements for your specific installation.


What is the maximum amperage capacity of the 400 amps main panel in this electrical system?

The maximum amperage capacity of the 400 amps main panel in this electrical system is 400 amps.


What information can be found in the wire to conduit chart?

The wire to conduit chart provides information on the maximum number and size of wires that can safely fit inside a conduit based on the conduit size.


What size wire do you need for a 30amp 120 volt appliance. It will be run in steel conduit.?

A #10 copper wire with an insulation factor of 90 degrees C is rated at 30 amps. If you need the full 30 amps for the load use a #8 copper wire. Loaded to 80% of rating will give you 32 usable amps.


What information can I find in the conduit size chart for wire?

A conduit size chart for wire provides information on the recommended conduit size based on the wire gauge and the number of wires being used. It helps in determining the appropriate conduit size for safe and efficient wire installation.


What size wire for 400 amp distribution panel?

For a distribution panel rated at 400 amps parallel runs of 3/0 conductors will do the job.


What size conductor is needed to carry 25 amps 120 volt AC over 400 feet?

A #4 copper conductor will limit the voltage drop to 3% or less when supplying 25 amps for 400 feet on a 120 volt system.


What information does the conduit size chart in the National Electrical Code (NEC) provide for determining the appropriate conduit size for electrical installations?

The conduit size chart in the National Electrical Code (NEC) provides information on the maximum number and size of conductors that can be safely installed in a specific conduit size. This helps determine the appropriate conduit size for electrical installations to ensure compliance with safety standards and prevent overheating or other hazards.