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# 4 gauge THHN or THHW is rated for 95 amps and would normally be the correct wire size. However, at 300 ft. from the source, you definetely will have a substantial voltage drop. Therefore, you need to up the conductor size to # 3 gauge.
Wiki User
∙ 14y ago
Wiki User
∙ 12y ago12 AWG is the normal requirement for 20 A. At 300 ft. there is about 1/2 ohm resistance, so at full load of 20 A you would have a drop of 10 volts which shouldn't cause a problem under most conditions.
Wiki User
∙ 10y agoA 300 MCM copper conductor with an insulation factor of 90 degrees C is rated at 320 amps.
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What is the ampere rating of a 8 gauge wire at 240 volts?
5 amps
What gauge wire you would use to wire a 5kw heater hvac?
At 120 Volts you would draw about 42 amps. At 240 Volts it would be about 21 amps. For 120 Volts you would need 6 AWG and for 240 Volts you would need 10 AWG.
What wire 240 volts 6500 watts 100 ft?
The sizing of wire is calculated by the amount of current the circuit draws. To find the amperage when the wattage is known use the following formula, Amps = Watts/Volts. 6500/240 = 27 amps. A #10 AWG copper conductor will limit the voltage drop to 3% or less, when supplying 27 amps at 240 volts for a 100 foot distance.
How many amps does a 2000 watt heater draw at 240 volts?
Amps * Volts = Watts So, Watts / Volts = Amps 2000 / 240 = 8.333 Amps You should run the circuit on a two pole 15 Amp breaker, using 14 AWG, 2 conductor (plus ground) wire, just so you have a little safety factor in the circuit size.
How any amps in 65 Watts 240 power supply?
Watts = amps x volts, Amps = Watts/Volts, 65/240 = .27 amps or 270 milliamps
What gauge wire would I need for 2500 feet for 240 volts and 0.4 amps?
A #14 wire will do the job.
What is ampere rating of 10 gauge wire at 120 volts and at 240 volts?
30 amps.
What is the ampere rating of a 8 gauge wire at 240 volts?
5 amps
What gauge wire you would use to wire a 5kw heater hvac?
At 120 Volts you would draw about 42 amps. At 240 Volts it would be about 21 amps. For 120 Volts you would need 6 AWG and for 240 Volts you would need 10 AWG.
What size copper wire should you use for 240 volts 200 amps?
3/0 wire 3/0 wire
What size copper wire do you need for 240 volts 16 amps at 150ft?
10 gauge
What wire 240 volts 6500 watts 100 ft?
The sizing of wire is calculated by the amount of current the circuit draws. To find the amperage when the wattage is known use the following formula, Amps = Watts/Volts. 6500/240 = 27 amps. A #10 AWG copper conductor will limit the voltage drop to 3% or less, when supplying 27 amps at 240 volts for a 100 foot distance.
What gauge wire would you need 5600 watts 240 volts 23.3 amps?
AWG # 10.
What size wire for 240 volts 200 amp service 200 feet away?
A 3/0 copper conductor will limit the voltage drop to 3% or less when supplying 200 amps for 200 feet on a 240 volt system.
What gauge wire for aluminum 240 volts 20 amp 200ft?
A #6 aluminum conductor will limit the voltage drop to 3% or less when supplying 20 amps for 200 feet on a 240 volt system.
How many amps does a 2000 watt heater draw at 240 volts?
Amps * Volts = Watts So, Watts / Volts = Amps 2000 / 240 = 8.333 Amps You should run the circuit on a two pole 15 Amp breaker, using 14 AWG, 2 conductor (plus ground) wire, just so you have a little safety factor in the circuit size.
How do you determine amperage service for a 240V single-phase three-wire system what formula do i follow?
You have to know the maximum amps you wish to deliver or draw of the device or devices you wish to power. There are charts on the internet for wire gauges and distance that you can follow. For example: A 12 gauge wire will handle 20 amps safely for runs up to 100 feet. You go down 1 gauge for runs over 100 feet. So if you are running 175 feet at 20 amps you should use 10 gauge so voltage drops don't occur. Voltage has no effect on rated current output other than selecting a wire or cable that is rated for the working voltages. 20 amps at 240 volts is the same as 20 amps at 120 volts. As long as the wire is rated at 240 volts, it will carry 20 amps at voltages less than 240 the same.
