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What is the Max amps per NEC for a 200 amp 240v 3w service total and per leg?
Wiki User
∙ 12y ago
The simple answer is...wait for it...wait for it...200amps per leg.
But generally you want to load a circuit to no more than 80% of its rating so that would be 160 amps. Beyond 80% you can get what is called nuisance tripping caused by heat, small surges, and quality of the breaker. Technically the NEC limits continuous loads (3 hours or more of continuous operation) to 80%, but non-continuous loads can be run at 100% capacity of the circuit rating. Since you are asking about a service, the terms continuous and non-continuous don't really apply but it would be extremely hard to load a 200 amp service in a home to near capacity even with an all-electric home.
Wiki User
∙ 12y ago
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What is the total electricity supply for a home?
In the US: 120/240V. Newer homes generally have a 200 amp service.
For 200 amps service do you use 100 amps per 120 volt leg?
A 200 ampere service provides 200 amperes per leg
What is the maximum amps each phase conductor carries on 200 amp residential service?
If the mains is a 200 amp two pole breaker each leg can carry up to 200 amps in relationship to the common neutral of the service.
Can you hook up 200 amp dervice to a 125 amp service panel?
No. If device draws 200 amps breaker will trip.
In a residential 200amp service is 100 amps the maximum that each of the two phase conductor can transmit or can they both carry 200 amps?
Each hot leg to the neutral wire of the service has the ampacity of 200 amps, that is why 3/0 wire is required. A 3/0 copper wire with an insulation factor of 90 degrees C is rated at 210 amps.
What is the total electricity supply for a home?
In the US: 120/240V. Newer homes generally have a 200 amp service.
For 200 amps service do you use 100 amps per 120 volt leg?
A 200 ampere service provides 200 amperes per leg
What is the maximum amps each phase conductor carries on 200 amp residential service?
If the mains is a 200 amp two pole breaker each leg can carry up to 200 amps in relationship to the common neutral of the service.
Can you hook up 200 amp dervice to a 125 amp service panel?
No. If device draws 200 amps breaker will trip.
In a residential 200amp service is 100 amps the maximum that each of the two phase conductor can transmit or can they both carry 200 amps?
Each hot leg to the neutral wire of the service has the ampacity of 200 amps, that is why 3/0 wire is required. A 3/0 copper wire with an insulation factor of 90 degrees C is rated at 210 amps.
What size wire is for 200 amps?
Service wire required is AWG # 3/0 copper.
If you have a 200A service panel is it true that you actually have 400A because you have two legs because your breakers add up to more than 200A?
The short answer to your question, is "yes" if you are talking about 120 volts. The panel is rated 200A @ 240v. In reality, service panels should be rated in watts (or kilowatts) We are charged by watts and we use electricity in different combinations of volts and amps, but watts remains a constant. (hence the reason we are charged by that value) So, as you noted, there are two legs, that each pass through a pair of interconnected 200 amp breakers. With 240v appliances, power is tapped from each leg, so at no time can 200 amps be exceeded. But with 120v appliances, power is tapped from one leg and terminated to the neutral leg. It is possible to draw a total of 400 amps from both legs, to the neutral. (actually, it's more complicated than that, as the neutral would never see more than 200 amps, and power is actually being routed in series between loads of each leg, so in reality it's still only a max 200A at 240v)So, for further clarification, let's get back to the watts thing. Watts can be calculated mathematically. Watts = volts X amps. So 240v times 200A equals 48,000 watts. That is your service panel's rated wattage. Now, the math can be reversed. 48,000 watts divided by 120v equals 400A.A simple way to present the question would be, "Could you have twenty 20 amp single pole circuit breakers at full load in a 200A service panel?" The answer would be, "yes."
200ma in amps?
200ma is .200 amps or .2 amps
What size service entrance conductors do you use for a 200amp service?
3/0 copper wire with 90 degree insulation is rated at 210 amps. 75 degree insulation is rated at 200 amps.
What size wire needed for 200 amp service 400 feet away direct buried single phase 240 volt 3 wire?
Assuming you are working with 240v, you need 4/0 copper conductors.
How many breaker amps will a 200 amp service with no main breaker support?
Check the nameplate on the service panel. There it will tell you what the buss capacity is. On a 200 amp service nothing in the wiring configuration is allowed to be less than that the service rating. In the market there are 200 amp 42 circuit distribution panels.
How long to change a house electrical service from 100 amps to 200 amps?
If the electrical contractor has all of the materials ready for the job, the man hours should be about eight hours.
