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How many amps is 250 MCM wire good for?
300 Amps if used for service entrance conductors. Table 310.15
What size copper wire for a run of 500 feet in parallel for a resident with a load of 600 amps single phase 240 volt?
This is a voltage drop question. A 500 MCM copper or 750 MCM aluminium conductor will limit the voltage drop to 3% or less when supplying 300 amps for 500 feet on a 240 volt system. Paralleling these conductors will allow the rating to be increased to 600 amps.
What size aluminum wire on 225 amp?
300 kcmil @ 75°
How many amps is a 12 gauge copper wire rated for at 240 volts?
Use a 30 amp breaker and 10 AWG wire for most applications. If you have unique requirements (high temperature, plenum, long run, etc.) contact a local electrician or your local building and zoning department.
What gauge wire do you need for 220v 100a power?
I would recommend 1/0 just to be sure you have very little line loss. <<>> It depends on whether the 100 amp panel is rated at 100% or 80% loading. If the panel is only rated for 100% loading, meaning that a full 100 amps can be drawn from it, the wire size will be #2 copper conductor which is rated at 130 amps. The feeder can only be loaded to 80 present so will have a working amperage of 130 x .8 = 104 amps. If the panel is only rated at 80 percent loading then a #3 copper conductor can be used. A #3 copper conductor with an insulation factor of 90 degrees C is rated at 115 amps. 115 x .8 = 92 amps.
How many amps is 250 MCM wire good for?
300 Amps if used for service entrance conductors. Table 310.15
What speaker wire for 300 watt amp?
There is no such thing as a watt amp. To determine wire size you need to know the current. Watts = Current x Voltage, so if you know the applied voltage to the load that consumes 300 watts you can get the answer. If we assume 120 volts as standard home voltage then current is 25 amps. If you had 240 volts it would be 12.5 amps. In general 14 AWG is 15 Amps 12 AWG is 20 Amps 10 AWG is 30 Amps
What size wire is needed for a 200 amp residential service panel?
A 350 MCM copper wire with an insulation factor of 90 degrees C is rated at 325 amps. If the question is referring to maintaining a load of 300 amps then you have to up size the wire size because the conductor is only allowed to be loaded to 80%. A 500MCM copper wire with an insulation factor of 90 degrees C is rated at 395 amps x 80% = 316 amps.
What will be the cable size for 300 A if the 3 phase voltage is 220 volts?
At least 50mm but with all the de-rating factors it might be 70mm that's if its 2 cable single phase non armoured clipped direct. Check out the tables dopey!!!! FYI 50 mm = 2 inches, 70 mm = 2.75 inches these are not wire sizes, sound more like cable outside diameters. Correct answer The wire size is dependant on the insulation factor on the wire. A few common insulations and corresponding wire sizes for 150 amps are - Size 0 R90 good for 155 amps, also with insulations of RW 75, TWH, TW75, good for 150 amps. Size 000 TW good for 165 amps.
Amp rating 14-2 wire?
You are talking of two different things here. The voltage rating of a wire is based on the insulation factor. Common wire voltages are 300, 600 and 1000 volts. Current rating of a wire is based on the diameter of the wire and measured in AWG. The electrical code states how much current can be legally applied to the wire. Answering your question, the 2 wire cable is probably 300 volt rated and your #14 size wire is rated at 15 amps. Code also states that conductors can only be loaded to 80% continuous load, so 15 x .8 = 12 amps.
What size wire for 100amp. 12vdc?
A #3 copper wire with an insulation rating of 75 or 90 degrees C is rated at 100 and 110 amps consecutively. As for the voltage, wire is usually rated in 300, 600 and 1000 volts. Any three of these insulations factors will handle 12 VDC.
What size awg do you need to install a 240v rec on a 50a breaker?
#8. It is better to error on the next large size. # 8 THHN 90 degree wire is rated at 45 amps. If there is a possibility that the breaker is connected to a 50 amp load the wire will be undersized. A #6 wire is rated at 65 amps. For continuous use, a load factor of 80% has to be applied. 65 x .8 = 52 amps. The only time the conductor can be smaller than the breaker size is on a motor feeder. Then the breaker is sized at 250% of the nameplate full load amps (FLA) rating of the motor. This is to allow the motor's starting current, which is about 300% FLA, to not trip the breaker on start up.
What is amperage limit of 12 AWG stranded copper wire?
A #12 copper wire with an insulation factor of 75 or 90 degrees C is rated at 20 amps.A 12 AWG wire should not be connected to a breaker larger than 20 amps. The wire is capable of carrying that current load without overheating and causing fire.
What gauge wire for 240 volt at 40 amps?
The ampacity of a # 10 copper wire with an insulation factor of 90 degrees C is 30 amps. All wire voltage ratings usually drop into two categories 300 volts and 600 volts. Home wiring drops into the 300 volt range and commercial, industrial, drops into the 600 volt range.
How many amps will 600 volt wire carry?
It depends on how thick the copper part of the wire is. A good guide is 5 amps per square millimetre of cross-section, less for a permanent installation. <<>> There are two factors that have to be taken into consideration when talking about wire. When amperage is talked about, that is the capacity of the wire to carry the current of the load, which is discussed above. When wire voltage rating is talked about, that is the resistance factor of the insulation wrapped around the wire to withstand the voltage that is applied to the wire. The higher the applied voltage to a wire, the higher the insulation rating has to be. Most conductors fall into three categories, 300 volts, 600 volts and 1000 volts. The 300 volt rating covers home wiring as it will never get above 240 volts. The 600 and 1000 volt rated wire is usually reserved for industrial installations.
Could you use a 12gauge wire for a 25 amp breaker single pole?
No a #12 wire is only rated for 20 amps. The 40 amp breaker will not protect the #12 wire. A 40 amp breaker should have a #8 wire connected to it which is rated at 45 amps. The only time that a breaker is allowed to be bigger that the wire size rating according to the electrical code is when a motor is connected to the breaker. This is to stop the 300 percent inrush of the motor full load amps from nuisance tripping a smaller sized breaker.
How many watts can 110 wire carry?
The first thing we have to do is clarify between the two items. 120 volt wire rating is an insulation rating of the wire. Like wire with ratings of 300 volts, 600 volts and 1000 volts these are the highest allowable voltages that can be applied. A wire that is rated for 300 volts is good for 120 volts, 240 volts and 277 volts. At test research facilities, equipment is tested to destruction. The label that is given to wire as a result of the tests is the highest safest voltages that can be applied to that particular wire. So when you see a wire that has a label stating that it is rated for 300 volts it means that any voltage under and up to 300 volts is safe to apply. The ability of a wire to carry current (amps) is related to the size of the wire. Now, watts is the product of amps x volts. To answer this question, assuming the supply voltage is 110 volts, an amperage needs to be stated as per the formula above.
