Answer
When you use parallel 500 copper, you are effectively providing a maximum 760 amp service protected by an 800 amp breaker, which is not permitted. A real 800 amp service will be provided by parallel 600 coppers in the majority of cases.
Also, what size wire do I need for 300 amps is something I’d want to know.
It should be adequate guidance for any individual conductors that you may be required to put in a conduit when doing home wiring. It is based on the data in table 310.15. (B).
from the website WireYourOwnHouse.com
AWG (American Wire Gauge)
Copper Amps Aluminum Amps 300 285 230 350 310 250 400 335 270 500 380 310 250 400 335 270
Is 500 mcm sufficient for 400 amps in the same way?
As long as the load is less than 380 amps, you can get away with using a 500 MCM. It is not possible to utilise a 500 MCM when the load is 381 amps or more. You will not be able to protect a 400 amp panel with a 500 MCM if you have not estimated the load and intend to utilise a 400 amp overcurrent device to do so.
To put it another way, what size wire do I need for a 1200 amp service?
Each set of phase conductors will be required to provide a combined total of at least 1,200 amps. In certain circumstances, the NEC allows for a smaller neutral to be used. A 1,200 amp feeder is often made up of three sets of 600 kcmil copper for us. This means there are a total of 12 – 600 kcmil (3A, 3B, 3N) and three EGCs of the right size for a 1,200 amp breaker (as shown in the diagram).
What gauge of wire is appropriate for 175 amps?
Wire gauge and amp ratings are important considerations.
Temperature of the wire: 75°C (167°F)
AWG (mm²)
Coppers2/0 (67.4) 175
3/0 (85.0) 200 4/0 (107.2) 230
There were 34 related questions and answers found.
Is 8 gauge wire capable of carrying 50 amps?
8 AWG is capable of carrying a maximum of 70 Amps in open air, or 50 Amps when used as part of a three-conductor cable system. The cable in question is NM (Romex), which means that it is not capable of carrying 50 amps.
What gauge of wire is appropriate for 100 amps?
Whenever possible, utilise a 2-gauge non-metallic encased electrical cable for the lines linking the master and secondary panels, especially if the line will be carrying up to a full 100 amps. It is necessary to have one or two hot wires, depending on your requirements, as well as one neutral wire and one ground wire in the cable. Each wire should be 2-gauge in size.
Is 10 gauge wire capable of carrying 40 amps?
12 gauge wire is good for 20 amps, 10 gauge wire is good for 30 amps, 8 gauge wire is good for 40 amps, and 6 gauge wire is good for 55 amps, according to the manufacturer. “The circuit breaker or fuse is usually sized to safeguard the conductor [wire],” says the author of the book.
How many amps can 8 3 wire carry?
The following wire sizes and amp ratings are available: NM, TW, and UF WIRE (Copper Conductor) SE CABLE (Copper Conductor) 14 AWG – 15 AMPS is the voltage. 8 AWG – 50 AMPS is the maximum current available. Twelve-gauge wire, twenty-amperes Six-gauge, sixty-five-ampere wire 10 AWG – 30 AMPS is the maximum voltage. 4 AWG – 85 AMPS is the maximum current available. 40 AMPS on an 8 AWG wire 115 AMPS – 2 AWG – 2 AWG
Is 10 gauge wire capable of carrying 35 amps?
The answer to the question is not whether or not @#10 can handle 35A, but rather that there are no 35 amp breakers available that I am aware of. You’d generally use #10 on a 30 amp breaker that was operating at 80 percent of its capacity, which would mean that 24 amps were being used. It would be 32A on a 40 amp breaker, and with the proper insulation, you may be able to get away with it.
What size wire is rated for 60 amps and what is the gauge?
#6 wire is the appropriate size for 60 amps. Insulation of the RHW or THHN kind should be used. The current carrying capacity of # 8 gauge wire is just 50 amps. Make sure you obtain stranded cable.
What gauge wire should I use for this project?
Because of voltage drop, 10-gauge wire is the minimum wire size for a 30-amp 240-volt circuit, but you should consider upgrading to 8-gauge if the outlet is located far enough from the panel to avoid poor performance as a result of voltage drop. A 6-gauge wire is the bare minimum need for a 50-amp circuit.
What is the proper way to size a three-phase wire?
The two formulas you’ll need are as follows: KW = KVA x “Power Factor” and KW = KVA x “Power Factor.” In this case, KVA = 1000 x VA = 1000 x Volts (Phase to Phase) x Amps (Phase to Phase) multiplied by 1.732. More information may be found by exploring this site.
How do you determine the size of the wire and the breaker?
To calculate the current draw, just divide the number by the voltage at which the device runs, which is either 120 volts or 240 volts in this case. Then increase this figure by a factor of 125 percent. This may be accomplished by dividing the number by 100 and then multiplying the result by 125. The rating of your circuit breaker must be greater than the sum of these numbers.
What is the formula for calculating feeder current?
Step 3: Determine the amps of each feeder depending on the voltage of the supply and the load. In order to do so, multiply your kVA values by 1000 in order to convert them to VA. Because it is three-phase, multiply your voltage by the square root of three to get the final result. You may find out your current by dividing your first response by your second answer; this is your current.
Can you tell me what size conduit I need for a 100 amp service?
The following is the minimum size required for services: 100 amp service #3 copper breaker with a 100 amp rating 1 14 1 14 1 14 1 14 1 14 “125 amp service #2 copper conduit with a 125 amp circuit breaker 1 14 1 14 1 14 1 14 1 14 “service conduit with 200 amps 2/0 copper – 200 amp breaker 2″ conduit 2” conduit is needed on all services that the utility attaches to the service mast, as well as on roof penetrating services that are connected to the utility.
In order to run a 50 amp circuit, what size wire do I need?
No. 4 AWG aluminium wire is recommended for use with a 50-amp aluminium circuit. The diameter of the wire increases in direct proportion to the number of turns on the wire.
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