Ask Experts Questions for FREE Help !
Ask
    lns0720's Avatar
    lns0720 Posts: 20, Reputation: 1
    New Member
    		  
    #1

    Feb 14, 2009, 05:55 AM
    Changing main breaker?
    Hey is it O.K. to change a 100 amp main breaker on a 100 amp panel to 125 amp breaker?Iwas told as long as the panel is rated to 125 amp it would be all right. I don't feel comfortable doing this.will this be all right or is my gut right. This is a 1-phase panel were talking about, Just want to be safe and 100 % sure!
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
    Uber Member
    		  
    #2

    Feb 14, 2009, 06:23 AM

    The wire also has to Handle the current.
    Aluminum or Copper?
    http://www.mikeholt.com/technical.ph...aceway%20Chart
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
    Electrical & Lighting Expert
    		  
    #3

    Feb 14, 2009, 07:15 AM
    Quote Originally Posted by lns0720 View Post
    Hey is it O.K. to change a 100 amp main breaker on a 100 amp panel to 125 amp breaker?Iwas told as long as the panel is rated to 125 amp it would be alright. I don't feel comfortable doing this.will this be alright or is my gut right. this is a 1-phase panel were talking about, Just want to be safe and 100 % sure!!
    Told by whom??
    What would you possibly need to do that for anyway? If you are that close with your demand or actual load then an upgrade to 200A would serve you MUCH Better.

    As Strat said, the service or feeder conductors would need to be sized properly to even consider it. If it is a 100A now there is about a 99.9% chance the service is sized for 100A.
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

I just replace my breaker box but it didn't have a main breaker is that safe ? [ 5 Answers ]

On the box it says it is a 100 amp breaker box and I have 1 50 amp breaker .2 30 amps breaker and 3 20 amps breakers if I add all the breaker it is 170 amps and my breaker box is for 100 amps is that how it works? Do I need a bigger breaker box? Is it unsafe...

Difference between Main Lug and Main Breaker Panel [ 8 Answers ]

What is the difference between a Main Breaker Panel and a Main Lug Panel and can either be used in new residential construction.

Load Center Main Lug or Main Breaker for the Attic [ 5 Answers ]

I have a large attic (on 3rd floor), 38'x28', which is unfinished space. The 2nd floor central air-condition is located there and used to be fed by a 60 feet of 12/3 cable (I changed the cable to 10/3 to reduce the chance of voltage drop) and it's fed by a dual 15A breaker (240v breaker) in the...

Can I convert a main breaker Cutler Hammer loadcenter to main lug? [ 1 Answers ]

I was wondering if Cutler Hammer made a part to convert a main breaker load center (CH) style, to a main lug panel. If so, does anyone know the part number or can you refer me to a location where I could find it? Cutler Hammer's website is not too user friendly. Thanks

New 15A breaker trips main 100A breaker [ 6 Answers ]

Hi, I've been finishing my basement and I added a few 15A breakers One room has 8 outlets in series with the first starting about 6 feet from the main panel. There is currently no load on this outlets. When installing the drywall I accidentally shorted the outlet closest to the panel. It...

View more questions Search