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    jethomas5's Avatar
    jethomas5 Posts: 1, Reputation: 1
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    #1

    Feb 20, 2011, 03:01 PM
    How do I know if I have 200 Amp incoming service ?
    The meter is : Rr 27 7/9Schlumberger KILOWATTHOURS CL200 240V 3W TYPE J5S 30TA 7.2Kh FM25 60Hz Schlumberger WATTHOUR METER,
    The circuit breaker pannel is ITE 100 A main, I do have several 220 V appliances AC/Dryer/etc..
    I am going to upgrade the pannel to 200 Amp, just need now to know what the incoming service is? And if it needs upgrade first / same time?
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #2

    Feb 20, 2011, 04:00 PM
    Before you can upgrade your panel, you need to determine what the service is for the house. Contact your electric utility and they can tell you. You cannot install a 200 AMP panel on a 100 AMP service feed. How old is your house?
    donf's Avatar
    donf Posts: 5,679, Reputation: 582
    Printers & Electronics Expert
    		  
    #3

    Feb 20, 2011, 07:25 PM

    If you have a "Split Bus", ITE panel, you should strongly consider getting rid of that panel.
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
    Electrical & Lighting Expert
    		  
    #4

    Feb 21, 2011, 06:10 AM
    Quote Originally Posted by jethomas5 View Post
    The circuit breaker pannel is ITE 100 A main, I do have several 220 V appliances AC/Dryer/etc..
    I am going to upgrade the pannel to 200 Amp, just need now to know what the incoming service is? and if it needs upgrade first / same time?
    You have a 100A service. EVERYTHING from the connections at the top of the house down to the panel and grounding must be replace for a 200A upgrade.

    There is close to a 0% chance what you have will support 200A.

    The drop from the rod is the utility's responsibility.
    bucky3d4's Avatar
    bucky3d4 Posts: 1, Reputation: 1
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    #5

    Nov 13, 2011, 07:17 PM
    If you have two 100 volt legs coming into your panel and third for ground, then you have a 200 voltage coming into your panel.

    To increase from 100 Amp to 200 Amp allows you more circuit breakers in the Panel and the 200 Amp controls that output usage. That is a no old Panel in today's usage.

    ++Warning++ Be sure your power is cut off before exchanging panels, can be down with live wires, but better safe than sorry.

    If you want to calculate the size of wire needed go to this site to calculate:
    http://www.paigewire.com/pumpWireCalc.htm
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
    Electrical & Lighting Expert
    		  
    #6

    Nov 13, 2011, 09:15 PM
    Quote Originally Posted by bucky3d4 View Post
    If you have two 100 volt legs coming into your panel and third for ground, then you have a 200 voltage coming into your panel.
    Really?? :confused:


    Quote Originally Posted by bucky3d4 View Post
    To increase from 100 Amp to 200 Amp allows you more circuit breakers in the Panel and the 200 Amp controls that output usage. That is a no old Panel in todays usage.
    Huh? Can you explain what this means?


    And did you notice this thread was from about 9 months ago?
    donf's Avatar
    donf Posts: 5,679, Reputation: 582
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    #7

    Nov 14, 2011, 10:54 AM
    Bucky,

    Where in the world did you get the information for your post from?

    1) Residential Service delivered by the Utility to the home is typically Single Phase, 3 Wire.

    2) Two of the conductors are 120 Volt that are out of phase with each other. Because of that, you receive 240 VAC at the home.

    3) Amperage: If you are using a Main Circuit Breaker with a single handle, the Service Amperage is stamped on to the handles.

    If you are using two breakers, the buses are being protected by one breaker each, So on a 100 Amp service, each bus will be protected by a 100 Amp breaker. The breakers are not added together to determine the total amperage.
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