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What is 200 amp service in USA?


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Answered 2008-04-13 20:25:18

200 amp service is the rating of electrical power available to your home. Older homes only had 60 amp service. Newer homes were updated to 100 or 150 amp service. The standard for most US homes today is 200 amp. You can find out what your service is by looking at the top breaker in your electrical box, it should be stamped on that.

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A minimumbare copper wire that can be used to ground a 200 amp distribution service is a #6.


The neutral is the same size as the feeder conductors for a 200 amp service.


A 200 amp service panel with a 60 amp sub-panel.


For a standard 200 amp service 3/0 copper or 250 MCM aluminium.


50 mm or 2 inch will handle the 3/0 wires for a 200 amp service.


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.


200 amp service entrance wire should be AWG # 2/0 copper or 4/0 aluminum.


A #6 copper conductor is used to bond a 200 amp distribution.


No. If device draws 200 amps breaker will trip.


No, each size service needs its own meter base.


The service panel itself is probably less than $200.


Minimum size grounding conductor for a 200 amp service entrance is #6 bare copper.


A typical 200 amp residential service carries 240 volts, and 200A x 240V = 48,000 watts (W= V x A).


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.


A 200 amp meter has to be used on a 200 amp distribution panel. As to your ability of installing this service depends upon your skill, workmanship and knowledge of installing electrical equipment and to be able to get it inspected and passed by an electrical inspector.


Depends on the size of the service. 100 amp service will require 3 gauge, 150 amp service will require 1/0 gauge, and 200 amp service will require 3/0 gauge.


As many as you wish, as long as you do cross 200 amp limit


Yes, the wire size has to be increased. The existing 100 amp service will now probably have a #3 conductor with an insulation factor of 75 or 90 degrees C which is rated for 100 and 105 amps respectively. Increasing to a 150 amp service will use a #1/0 wire size. If you are thinking of an upgrade, skip the 150 amp service and go to a 200 amp panel. New homes are installing 200 amp 42 circuit panels. The extra cost is only reflected in the materials as the labour costs will be the same regardless whether a 150 amp or a 200 amp panel is installed. The wire size for a 200 amp panel is #3/0. With an insulation factor of 75 or 90 degrees C the rating is 200 or 210 amps respectively.


A ground wire for a service distribution has to be copper. A #6 copper conductor can be used up to a 200 amp service.


No. you cant because that is way too much current (amperage). Think of a circuit. You should NEVER connect a 100 amp service to a 200 amp breaker, as you might do with the 200 amp mains in the panel you have. However, if your service conductors are long enough or can be extended, you can connect your service conductors to a 100 amp breaker installed as you would any other breaker in the panel. You would simply ignore the 200 amp main breaker. You might end up with an inspection problem if at some time that becomes necessary. And you might have to make it right for the sale of a property. But electrically, if you connect your service to a 100 amp breaker, "the electrons don't care," as I like to say it. But you only have 100 amps available.


4awg copper to water main, #6 solid to ground rod


The current output cannot exceed what is available. 1,000 amp service to a house is rather unreasonable and most likely would not be provided by the utility anyway. 100 amp or 200 amp service would be more likely.


A 200 amp service panel will require a # 4 bare copper ground wire.


4/0 is only rated at 185 amps. You will need 250 MCM wire rated at least 75C, preferred 90C for a 200 amp service.



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