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Why 12 AWG THHN cannot be for 30 amps in the national electrical code?
Wiki User
∙ 13y ago
A 12 ga wire will overheat when you attempt to use it for a 30 amp draw.
The National Electrical Code is a well thought-out standard of engineering and the requirements are not arbitrary.
If you attempt to use 12 ga for 30 amps, you'll likely cause a fire.
Wiki User
∙ 13y ago
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The total load 75 amps is continuous what size breaker is required?
This depends on your local electrical code, however the National Electrical Code and Canadian Electrical Code both state that you must derate circuits to 80% of their maximum electrical capacity, so for a load of 75 amps you must use overcurrent protection and wire rated for 93.5 amps, and since that doesn't exist you must upsize to 100 amps.
What are electrical amps?
Amps is short for ampere, a unit for current.
What is meaured in amps?
The electrical current in a circuit is measured in amps.
Can 30 amp breaker be put in number 12 wire?
No, the National Electrical Code book (US) limits the current on a #12 AWG to 20 amps.
How many watts in 10 amps?
Watts and amps measure different things, and they cannot be converted as asked. Watts measures power. Volts measures voltage and amps is a measure of current. The three electrical parameters are related by this formula: Power (watts) = volts times amps. If you know the voltage, then you can find the watt-to-amp ratio.
What is the current carrying capacity of a 10 gage THHN copper conductor?
30 amps
What is the maximum amps for 12 gauge wire?
It depends more on the insulation type not the voltage A very common wire type is THHN According to NEC (electrical standard popular in the USA) this type wire in size #12 is rated for 30 amps, but there is a footnote that states it can only be used for 20 amps maximum
The total load 75 amps is continuous what size breaker is required?
This depends on your local electrical code, however the National Electrical Code and Canadian Electrical Code both state that you must derate circuits to 80% of their maximum electrical capacity, so for a load of 75 amps you must use overcurrent protection and wire rated for 93.5 amps, and since that doesn't exist you must upsize to 100 amps.
What are electrical amps?
Amps is short for ampere, a unit for current.
What is meaured in amps?
The electrical current in a circuit is measured in amps.
How many amps will thhn 6 wire carry?
Depends on how far you want to carry that load.For short distances, 6 AWG THHN rated at 90C, used at 30C ambient, is permitted for up to 75 Amps when in a 3-conductor cable or conduit.In free air, it may be "capable" of handling up to 105 amps.NEC Table 310.16 and 310.17.
What size wire is rated for 585 amps?
The Canadian Electrical Code requires a 1000MCM copper wire with a insulation factor of 90 degree C is rated at 585 amps. Quite a coincidence. The National Electrical Code requires a 900 kcmil copper conductor with an insulation rated for 90 degrees C for 585 amps..
Electrical wire gauge versus amps table?
Look up or Google this: National Electrical Code Table 310.16 This is the table you are looking for. You can find a link by following the related question below.
What is 1.5amps equal to?
1.5 amps relates to an electrical current flowing within the circuit and conductors measured at 1.5 amps , which can also be defined as 1,500 milli amps, but this cannot be defined as anything other than electrical current flowing.
What measures amps of current?
An electrical ammeter.
Can 30 amp breaker be put in number 12 wire?
No, the National Electrical Code book (US) limits the current on a #12 AWG to 20 amps.
What gauge wire for 100 amps?
120/240 single phase dwelling NEC 310.15(B)(6) #4 copper or #2 Al otherwise, NEC 310.16 #3 copper THHN or #1 Al THHN 2/0 Aluminum. <<>> A #3 copper conductor with an insulation factor of 75 or 90 degrees C is rated at 100 and 115 amps respectively. A #1 aluminum conductor with an insulation factor of 75 or 90 degrees c is rated at !00 and 115 amps respectively.
