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200 amp trips

None of the 15, 20 or 30 amps trips just the 200 and when i remove the panel cover one of the main wires coming from the meter and going the 200 amp breaker was hot to the touch ?

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So one leg of your 220 was hot to the touch. If this wire is coming from your meter and going into the top of the main breaker. Be careful, it is hot and there is nothing you can do to kill the power from it. I would suggest getting a qualified electrician with the proper tools to see if the lug is loose on the breaker. If the wire is not tight in the lug that will produce heat.

Posted on Jun 23, 2009

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Outside main 100 amp breaker is tripping but none of the inside breakers, supposedly when dryer and tv on together but not all the time


Am I to assume your dryer is electrical? If so, I'll guarentee it will draw MORE than 14 Amps if heating. Sorry, can't analyze your problem from here.

May 01, 2014 | Cutler Hammer 100 Amp Main Breaker...

1 Answer

I recently had new service installed. 200 amp load center at the top of my stairs, and a QOM2E2200NRB 200 amp enclosed breaker next to the meter socket. Idiot electrician bonded the neutral in the load...


Problem is not clear.
You have 200 Amp cut off by meter, with 3 wires from meter box:
2 Hot wires and a ground.
http://waterheatertimer.org/See-inside-main-breaker-box.html

You have 200 amp service panel.
Does the ground wire enter service panel from cut off box?

Feb 24, 2013 | Electrical Supplies

1 Answer

Crouse - Hines Murry Style MP or MD 200 Amp Main Breaker Difficult to Reset


A 200 amp circuit breaker has a large spring to assist in rapid opening and closing a load of this size to minimize damaging arcing every time is it operated under electrical load

The larger the circuit breaker is and the more poles (1, 2 or 3) that are being opened / closed; the more force it will require to operate - both by hand or when tripping. Compare the tension or force you need to apply to a similar sized circuit breaker at Home Depot, etc.

The troubling issue about this for me is the fact that the 200 amp service disconnect / main is tripping. This is an indication of an overloaded panel / circuit. I usually see individual circuits that trip in a panel - but often find the that main breaker has only 20% - 60% of its rating on it at any given time. If you're tripping a 200 amp service disconnect / main breaker repeatedly - something has got to give - and eventually the circuit breaker will fail. That may be where you are now with this breaker. You may be in need of a service upgrade (if it is the service disconnect) as clearly, you have out grown the 200 amp size one you currently have or need add a new sub-panel to ease the load that this 200 amp main is trying to supply now.

Either way, you should call a reputable electrical contractor to have your service / sub-panel evaluated very soon. Good luck!

Feb 21, 2013 | Bryant /murray Bj2200 Main Circuit Breaker...

1 Answer

Do i need a main breaker for a 200 amp panal?


This looks like an indoor panel. If you have an outdoor panel next to (or below) the power companies meter, It should have the breaker to feed such a panel. Thus, this indoor panel should only be required to have "main lugs" to receive wire from outside breaker. NEVER size breaker outside bigger than the equipment rating of inside devices. If from the power companies meter you intend to feed this panel, YES it is required to have a Main Breaker.

Apr 02, 2012 | Square D Qo 200 Amp 40 Circuit Indoor...

1 Answer

1 question can Cutler Hammer breakers have the amperage feed through the breakers. To the breaker box and from the box grid to the load. Does it matter which way the amperage is fed through the breaker?...


There seem to be several questions mingled in with those 2 questions.

1) Amps can go either way

2) Breakers trip when heat exceeds certain level. Heat is caused by amps.

3) You want to add a subpanel in garage.
I do not know the code in your area for installing a subpanel.
Your plan will work by connecting 6 gauge wire to main breaker, and new 60 amp breaker will protect wires between main box and subpanel.
Remember, wires going into main breaker cannot be turned off without pulling meter.
Some areas require license to pull meter.
http://waterheatertimer.org/How-to-replace-circuit-breaker.html

4) To work around license and meter-pull, simply replace a 240V breaker in main panel with your new 60 amp breaker.
Then move breakers around to match new set-up.
New subpanel can accommodate two new 240V breakers and one new 120 Breaker
http://waterheatertimer.org/How-to-install-a-subpanel.html

5) 6 gauge wire is correct for 60 amp breaker.

6) I'm not sure what you mean by the box rails?

7) Do you need more amperage on main service?
This means adding a larger service panel with 150 Watt or 200 Watt main breaker.
Some areas require service upgrade when remodeling or adding circuits.

8) How to figure total amp draw at your house.
Add up total watts being used.
For example you have 1/2 Hp motor
754 watts per Hp
1/2 Hp = 377Watts
Volts x Amps = Watts
Amps = Watts divided by Volts.
377 Watts divided by 240Volts = 1.57 amps (plus a bit more amperage when motor starts)
40 watt light bulb divided by 120Volts = .33 amps
Double oven has label located inside door that shows upper and lower wattage.
Dishwasher, dryer, big screen TV, satellite receiver all have labels that show wattage.
Water heater has label that shows wattage of each element.
http://waterheatertimer.org/Figure-Volts-Amps-Watts-for-water-heater.html
http://waterheatertimer.org/See-inside-main-breaker-box.html

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Feb 18, 2011 | Cutler Hammer 100 Amp Main Breaker...

1 Answer

Can i replace the main (100 amp) is a sq d QOC20u100F panel with a 200 amp main--i will up grade meter socket and entrance cable to 200 amps cwalker


First the part number QOC20U100F is a flush mount panel cover. The panel you have is most likely a :QO116M100. No you cannot replace the breaker as the bus in the panel is only rated for 100A. In addition I believe this is a 20CKT panel. If you're gonig to a 200A service you'd probably want more spaces than that. Home Depot and Lowes both carry 200A panels with starter set of breakers at reasonable price. The QO panels are a bit better than the Homeline
Here is a link to manual for their panels. :
http://static.schneider-electric.us/assets/DIGEST/load-centers.pdf

Aug 21, 2010 | Your One Source 100 Amp Main Lug Load...

1 Answer

I've changed out my central heat and air ,with a larger unit , after 5 weeks working fine ,now if my air conditioner ,hot water tank and stove is on along with a few minor appliances my main breaker trips...


No,you can not wire directly to a meter. All wiring must come through the circuit panel or sub panel.
150 amps is sufficient to run what you describe. You may have a weak main breaker or loose wiring to these appliances. Place a amp meter on a incoming supply wire at the main, while you monitor amp draw have someone go around the house and turn on all these appliances. If it trips at less than 140 amps you have a bad main.
I suspect you will find a bad neutral wire on one of these appliances.

Sep 30, 2009 | Goodman Heating & Cooling

2 Answers

Siemens Main Breaker 125 Amp gets warm and trips


sounds like a loose connection ,or possibly a weak main breaker.

Jul 14, 2009 | Siemens /ITE 100Amp 2-pole molded circuit...

2 Answers

Main breaker tripping


get acceess or rent an amp clamp meter with a "max hold" and clamp it on each line wire coming into the box (if you're not experienced in this hire an electrician being tht it can kill you if not done correctly and safely) when it blows check amps to each "leg" and see if it is over 200 amps. if it is under, the main breaker should be replaced . If it is over, clamp it on the "hot" side of each
circuit that you suspect may be pulling too much. If this all comes out ok, have the main service connections to the main breaker checked for being tight. This is a last resort, but I'
ve seen them heat up from being loose and then throw the main. The over all amps could be pulling too much, but it takes alot of things running at the same time to throw a 200 amp main.

Goodd luck!
.

Jan 15, 2009 | Electrical Supplies

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