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The answer depends on several factors: Most electrical codes in the United States are based on the NFPA. Some areas may follow a different standard. Ampacities of conductors are arranged in the NFPA in several charts depending on the installation criteria. In addition the charts have correction factors. The several factors that need to be identified are: What is the conductor made out of: copper, aluminum or other?
Is it in a raceway, on a messenger, in free air, or a cord?
If in a raceway, is there more than 3 current carrying conductors?
Is it high-voltage (above 600) or low voltage?
What type isulation is being used?
What is the allowed voltage drop?
What is the ambient temperature?
As you can see there is no easy answer. However, on a typical installation using copper wire for under 600 volts, the size is in the range of 4/0
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∙ 16y ago
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∙ 10y agoAnswer for USA, Canada and countries running a 60 Hz supply service.
A 000 copper conductor with an insulation factor of 90 degrees C is rated at 225 amps.
<<>>
Answer for countries in Europe and other world areas running a 50 Hz supply service.
cable size to be used is 120sqmm.
if cable is laid in ground then it will carry-240Amps
if cable is laid in duct then it will carry-195Amps
if cable is laid in air then it will carry-230Amps
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∙ 10y ago4C 400 sq mm copper cable run in parallel.
<<>>
In North America to obtain feeders for 2000 amps you could use a triple run of 1500 MCM cable that will give you 2115 amps. A quad run of 700 MCM cable that will give you 2080 amps. A parallel run of 5C at 500 MCM cable that will give you 2150 amps. A parallel run of 6C at 350 MCM cable that will give you 2100 amps. Over that I have never seen lugs that will carry more that 6 conductors.
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∙ 10y agoA 3/0 copper conductor with an insulation factor of 90 degrees C is rated at 225 amps.
A 2/0 copper conductor with an insulation factor of 90 degrees C is rated at 195
amps.
In the CEC for 3-wire 120/240 volt conductors used for single dwellings, the allowable ampacity for size 2/0 AWG shall be 200 amps.
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∙ 14y agoIf using aluminum SEU cable, you must use 4/0, 4/0, 4/0.
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∙ 11y agoIn the US you need 2/0 ("2 ought") copper for residential and 3/0 copper for commercial.
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∙ 11y agoA 3/0 copper wire with an insulation factor of 75 or 90 degrees C is rated at 200 and 210 amps respectively.
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∙ 10y ago200 amp service entrance wire should be AWG # 2/0 copper or 4/0 aluminum.
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What size wire should you use for a device operating on 240 VAC pulling 22 amps?
wire is often rated at 600 vac, 22 amps reqires # 10
What size wire should you use for a 20 amp breaker?
A #12 wire is rated at 20 amps, continuous loading at 80% = 16 amps. # 10 wire is rated at 30 amps, continuous loading at 80% = 24 amps.
What size feeder wire for 100 amps?
Service wire for 100 amps requires AWG #3 copper.
What size breaker and wire for 2000 watt heater?
A 2000 watt heater draws 8.3 amps on a 240 v supply, so the cutout should be set to 10 or 12 amps. <<>> In North America a 2000 watt baseboard heater will be fed with a two pole 15 amp breaker. A two wire cable of #14 copper will be used to connect the supply voltage to the heater.
What size wire do you need to run to an air conditioner that has a maximum breaker size of 40 amps and a minimum circuit size of 25.3 amps?
Number 10 thnn copper wire.
What size copper wire should you use for 240 volts 200 amps?
3/0 wire 3/0 wire
What size wire should you use for a device operating on 240 VAC pulling 22 amps?
wire is often rated at 600 vac, 22 amps reqires # 10
What size circut breaker for 10-2 wire?
A #10 wire has the capacity for 30 amps. No breaker larger than 30 amps should be used to protect the circuit.
What size wire should you use for a 20 amp breaker?
A #12 wire is rated at 20 amps, continuous loading at 80% = 16 amps. # 10 wire is rated at 30 amps, continuous loading at 80% = 24 amps.
What size feeder wire for 100 amps?
Service wire for 100 amps requires AWG #3 copper.
What size wire do you need for 15 amps?
AWG 10.
What size amp circuit breaker should be used for a geyser?
Depends on how many amps it pulls and the size of the wire in the circuit.
What size breaker and wire for 2000 watt heater?
A 2000 watt heater draws 8.3 amps on a 240 v supply, so the cutout should be set to 10 or 12 amps. <<>> In North America a 2000 watt baseboard heater will be fed with a two pole 15 amp breaker. A two wire cable of #14 copper will be used to connect the supply voltage to the heater.
What size wire do you need to run to an air conditioner that has a maximum breaker size of 40 amps and a minimum circuit size of 25.3 amps?
Number 10 thnn copper wire.
What size wire and breaker do you need for a 5000 watt garage heater?
Look on the heater and see what amps it is pulling. That will determine the wire size and breaker size. It must be on a dedicated circuit. 15 amps = AWG # 14 wire with 15 amp breaker 20 amps = AWG # 12 wire with 20 amp breaker 30 amps = AWG # 10 wire with 30 amp breaker 40 amps = AWG # 8 wire with 40 amp breaker
What is amp size for 14 wire?
15 amps.
What size wire for 250 amps?
15mm approx.
