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Old 06-25-2015, 10:55 PM   #1
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240 v breaker switch-many colours!


I would really appreciate help on this, I was attempting to change an old breaker have taken out all wires and removed old breaker, now I cant remember which way the wires went in

there four wires
two yellow
one blue
one brown

it effect dishwasher and and two outlets.

is it possible for someone to tell me how to re-wire this? I feel like im halfway there!lol



thanks very much in advance
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Old 06-25-2015, 11:45 PM   #2
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240 v breaker switch-many colours!


What country are you in? And why do you think/want to change the breaker?

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Old 06-26-2015, 12:25 AM   #3
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240 v breaker switch-many colours!


That is a Double Pole, Double Throw Circuit Breaker. The two inner screws as you see on the graphic are for one 240 Volt circuit. The outer two can either be used by two different 120 Volt branches, or another 240 Volt circuit, but you would need the handle tie to allow those two to trip at the same time for use as a second 240 Volt circuit.
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Old 06-26-2015, 12:26 AM   #4
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240 v breaker switch-many colours!


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Originally Posted by jreagan View Post
What country are you in? And why do you think/want to change the breaker?
I am thinking European from how small those wires are in the background.
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Old 06-26-2015, 02:46 AM   #5
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240 v breaker switch-many colours!


This is without a doubt either in the US, Mexico or Canada. You will not find white used as a neutral in Europe, 120/240 split phase power or UL listed plug in breakers (DIN rail systems with a CE listing are employed instead).


The separate colors don't indicate anything. The NEC does not have a color code requirement other then green or bare be ground and white or grey be neutral for applications like this so the electrician can use any color he chooses for his hot wires.

Anyway to address the OP's predicament.

Chances are the two yellow wires are for the 240 volt circuit which will go to the breaker's two center screws. The brown and blue will go to either outer poles, but you might have to swap them after testing what they power since you might get something different from the panel directory.

This of course is ASSUMING that the two yellow wires are your 240 volt circuit, but chances are it is safe to assume yes.

The only way to know for sure is to trace the circuit.

Last edited by Jump-start; 06-26-2015 at 02:52 AM.
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Old 06-26-2015, 05:28 AM   #6
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240 v breaker switch-many colours!


Quote:
Originally Posted by gregzoll View Post
That is a Double Pole, Double Throw Circuit Breaker. The two inner screws as you see on the graphic are for one 240 Volt circuit. The outer two can either be used by two different 120 Volt branches, or another 240 Volt circuit, but you would need the handle tie to allow those two to trip at the same time for use as a second 240 Volt circuit.
That is not a double-pole, double-throw circuit breaker. There are double-pole, double-throw switches that would connect two poles to two different loads, a transfer switch is a common example of a double-pole, double-throw switch. I've never seen a DPDT circuit breaker. The CB shown is a quadplex breaker. It is really two double-pole circuit breakers that fit on a single pair of bus stabs. See image below for DPDT switch, and it is not what that CB does:



Greg being wrong, once again.

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Last edited by busman; 06-26-2015 at 05:30 AM.
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Old 06-26-2015, 08:47 AM   #7
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240 v breaker switch-many colours!


Thanks a lot for the reply's , I'm from Canada. The breaker keeps tripping, when I use the microwave. I switched out the microwave and still same issue, so I thought I would try changing the breaker. I Think I'm going to try Jump-start's suggestion?... I attached a pic of the service panel.
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Old 06-26-2015, 09:10 AM   #8
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240 v breaker switch-many colours!


Quote:
Originally Posted by Hassan.ghavam View Post
Thanks a lot for the reply's , I'm from Canada. The breaker keeps tripping, when I use the microwave. I switched out the microwave and still same issue, so I thought I would try changing the breaker. I Think I'm going to try Jump-start's suggestion?... I attached a pic of the service panel.
There is no way to tell you how this should be wired from the photos, but you need to be very careful; you may have a 240V or multiwire branch circuit involved here and getting the right wires to the right terminals will be critical. Even if everything comes on and works, it might burn up down the road if it is a MWBC.

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Old 06-26-2015, 11:59 AM   #9
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240 v breaker switch-many colours!


Quote:
Originally Posted by Hassan.ghavam View Post
Thanks a lot for the reply's , I'm from Canada. The breaker keeps tripping, when I use the microwave. I switched out the microwave and still same issue, so I thought I would try changing the breaker. I Think I'm going to try Jump-start's suggestion?... I attached a pic of the service panel.

Could just be a bad outlet or someone added more outlets than allowed to that branch circuit.

Is the outlet a GFCI or conventional outlet? How many watts are the Microwaves?
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Old 06-26-2015, 01:29 PM   #10
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240 v breaker switch-many colours!


Quote:
Originally Posted by gregzoll View Post
That is a Double Pole, Double Throw Circuit Breaker.
Stop. Just stop.
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Old 06-26-2015, 02:53 PM   #11
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240 v breaker switch-many colours!


Quote:
Originally Posted by Hassan.ghavam View Post
Thanks a lot for the reply's , I'm from Canada. The breaker keeps tripping, when I use the microwave. I switched out the microwave and still same issue, so I thought I would try changing the breaker. I Think I'm going to try Jump-start's suggestion?... I attached a pic of the service panel.
Can you post a pic of the top left side where the slot is currently open? I see what looks like a brown spot? Maybe its just the picture.
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Old 06-26-2015, 04:06 PM   #12
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240 v breaker switch-many colours!


What is on when it trips? Could be that there is too much on the circuit and the breaker is doing it's job. From the looks of it I highly doubt the breaker is bad.

Also, what is that single-pole 30 breaker for on the bottom left??? Every time I see on of them I get suspicious.
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Old 06-26-2015, 11:38 PM   #13
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240 v breaker switch-many colours!


Petey, does that look like a burn mark to you on the Upper Left part of the Busbar?
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Old 06-27-2015, 06:55 AM   #14
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240 v breaker switch-many colours!


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Petey, does that look like a burn mark to you on the Upper Left part of the Busbar?
It certainly does, but I don't think that was from heat. It looks like someone got blowed up.
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Old 06-27-2015, 08:13 AM   #15
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240 v breaker switch-many colours!


What is all over the handles on the bottom left breakers? Caulk.?

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