Ask Experts Questions for FREE Help !
Ask
    plove79's Avatar
    plove79 Posts: 1, Reputation: 1
    New Member
     
    #1

    Sep 1, 2010, 06:00 AM
    Murray main lug center - what type of tandem breaker? Cl or ncl?
    I have a Murray LC2040L1125 main lug center as my main service panel in my house. Main line directly from meter comes in through two pole backfed 100A main. There are extra spaces in this load center, and it currently only has 19 circuits on it, far less than the 40 that are allowed.

    Question: While I was at home depot yesterday, I noticed that there was a 15/15 tandem for $10 and a 15/15 tandem for $18. One was called "CL" ($10) and the other was "NCL" ($18). The person in the electrical department described the difference as the size of the socket that clicks in to the panel. She suggested that I simply buy both and return the one that doesn't fit.

    Does anybody have experience with this load center? Can somebody suggest which breaker to buy?

    Second question: Should I get the "Main Breaker Kit" (MBK100M: $120) so that I could remove the backfed main and create an actual main for this load center? OR, is this backfed breaker all right? It DOES shut off all electric in the house with one hand motion.

    Thanks!
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
    Uber Member
     
    #2

    Sep 1, 2010, 07:05 AM
    The breakers are rated CTL and NON-CTL, which is related to circuit limiting.

    The NON-CTL breakers are for panels manufacturered before 1968.

    I suspect you can use the CTL rated breaker, but check the label on the panel.

    A Main Breaker kit would be better, but you can use a breaker in the branch circuit slots as a Main, however, you will need to add a retainer kit for any breaker that acts as a Main backfeeding a panel.

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!

Can a 100 amp load center be used as a sub panel with a 60amp main breaker? [ 7 Answers ]

Hello, I`m triying to add a sub panel to my existing main panel. There is no more room in the main panel for circuit breakers and I wanter a sub panel with at least 10 more spaces.

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 main breaker load center - grounding [ 1 Answers ]

I currently have a fuse box that I want to upgrade to a main breaker load center. My house is in the country so I have a pole with the meter and a service disconnect. From the service disconnect it braches to my barn, well pump, and the house. (Following the main into the house) Inside on...


View more questions Search