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Curcuit wiring I need to wire into my breaker panel a new curcuit. I have pulled the wire and am ready to connect it in the breaker box. The wire has a white and a black insulated wire and a naked ground wire. I have a new 15amp breaker. I think the white connects to the breaker, but I'm not sure about the black. And does the ground connect to the bar at the top of the panel ? Thanks for any advice. James

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  • jrd29687 Oct 25, 2008

    Thanks, I appreciate the help. I did turn off the main breaker and checked with my meter, but I didn't find any power. I will be very careful. I assume I can twist the bare and the white together and connect to the ground.

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Black will normaly go to the breaker on a 110 circuit white is ground and the bare is secoundary ground..You should see this with the cover removed. BE VERY CAREFULL AS THERE IS POWER INSIDE THE BOX AT ALL TIMES AND A WRONG MOVE COULD SEND YOU TO THE UNDERTAKER,EVEN IF YOU TURN OFF THE MAIN BREAKER THERE IS STILL POWER COMING INTO THE BOX THAT COULD KILL YOU...If i were you i might call a friend ta help.

Posted on Oct 25, 2008

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Dedicated 20 amp outlet


Ideally you should run the line straight from the circuit breaker out to your hot tub, but if the line running from your circuit breaker to the box you're using now is 20amp. you can absolutely connected to that. to be up to code it cannot be an open box it needs to be closed After you wire in your 70ft connection. (that's assuming the box that you're using is dedicated already to your hot tub) then the only difference would be is your using extra line and costing you tenths of a penny extra and electricity per hour.

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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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Can a circuit breaker fail? There is no power in my daughters room, but the circuit breaker seems to be fine. It doesn't reset or fix the problem.


Make sure to click breaker completely over to one side and then click all the way back to reset.

Yes, breakers go bad.

You can check your breaker in a simple way.

Turn main breaker OFF.
Mark daughter's breaker.
Take cover off breaker box.
The main breaker will still have power on the lugs where big wires connect.
Rest of box will have no power.
Notice that each 120 volt breaker has a wire connected to end of breaker.
Use screwdriver and tighten this wire.
If screw is already tight, then loosen screw and pull wire out, and move wire to another breaker marked with same amperage. For example if daughter's breaker is 20, then move wire to another 20. Now there will be two wires connected to that breaker.
Turn power ON and see if daughter's room is restored.
This set up will work fine until you have time to replace breaker with same brand as marked on breaker box, usually available at home center (if available).

If power is not restored by moving wire, then there is a loose wire inside a junction box located in daughter's room.
Test each receptacle in room to confirm that nothing on that circuit has power.
If some receptacles have power, start opening other receptacle boxes looking for loose wire, especially at the quick-connects where wires stab into back of receptacle device.
If whole circuit is off, then to isolate location of loose wire, start at the ceiling box, and see if there is a loose black or white wire. Most electricians run wire from breaker to the ceiling box, and then other wires spread out from there and go box to box until each box has a black and white wire that connects back to original breaker.

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120- Bring wire into box securely as is done with all the other wires. Shut the breaker to "off". wire the black wire from the screw on the back of the breaker. white wire to the bar with all the other whites. copper to the same bar or separate grounding bar if available. snap breaker into place. turn breaker on

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See 60 Amp sub-panel image

Above image shows drawing of 60Amp sub-panel located next to main panel. Drawing shows #6 wire... 125' distance to garage calls for #4 wire. I ran #4 to my barn and have no problems.

Give thought to how many new breakers you want at garage.
See photo of subpanel that holds three 240V breakers

Using drawing as a guide. Replace existing 240Volt breaker with new 60 Amp breaker. Two hot wires connect to new 60 Amp breaker. Neutral connects to neutral busbar.

More space: You can free up space in main breaker box using a tandem breaker. Or by doubling up 2 lightly used 120V circuits onto one breaker. Do not double-up on 240 Breakers

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