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How to wire 240 volts siemens circuit breaker

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If you have 4 wires coming from your AC unit put the two colors (usually black and red) on your breaker, white wire on your neutral strip and the green on the ground strip. If I were you, I think I would turn all of the power off before wiring anything..Your Question seems to tell me that you know very little about electricity, so I think I would get an electrician to do this wiring, boy you could save a lot of money in the long run, besides its not safe. I will be glad to help you on this. I am a license electrician.

Posted on Oct 13, 2008

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Posted on Jan 02, 2017

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I have 110 volts n each leg but not 220 across both why??


In a traditional North American residential electrical panel (120/240 volt, single phase), installing a single width or single pole circuit breaker, you would expect to read 120 volts from the breaker terminal screw to either ground or neutral. A double width or double pole breaker would provide 120 volts from either of the breaker terminal screws to ground or neutral AND it will provide 240 volts BETWEEN the TWO breaker terminals.

A single-width circuit breaker case that contains two handles is NOT a two pole circuit breaker (these are called "tandem" or "1/2 size" breakers). This is because a single width breaker engages only one "line" in the panel. A double width breaker will engage 2 "lines" as a triple width breaker would engage 3 "lines" of a 3 phase panel. A single wide breaker can not physically engage more than 1 "line" so it will never be able to pass 240 volts.

You must install a double width / double pole breaker to safely supply a 240 volt circuit / device.

Mar 15, 2014 | GE 20 Amp 1 In Double Pole Circuit Breaker...

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I need to know fuses box


Copy following link to see basic circuit breaker box.
http://waterheatertimer.org/See-inside-main-breaker-box.html

It appears you are connecting home automation to to breaker box.
Remove one wire from each circuit breaker. Connect this wire to relay. Then run new wire from relay to circuit breaker.
When the relay turns ON, then that will complete circuit to each circuit.
This will work for 240 volt or 120 volt or 277 volt single-phase split phase..

Match wire size and circuit breaker
http://waterheatertimer.org/Color-codewire.html

Nov 22, 2012 | Heating & Cooling

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Can a 240 volt outlet be ran off this breaker and can a 240 volt electric baseboard heater be wired to it or should i use double pole breaker?


You need 240 breaker:
Notice that your 240V breaker is twice as wide as regular 120V breaker.
Notice that both switches are tied together on 240V breaker, making this a double-pole breaker.
For more information about breakers and 120-240V circuits:
http://waterheatertimer.org/See-inside-main-breaker-box.html
http://waterheatertimer.org/B220C.html
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Jan 24, 2011 | Siemens 20 Amp Single Pole Breaker 120/240...

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When specs say circuit requirement is 40, do they mean the breaker size?


What are you wiring?
Does it seem realistic that you need 40 Amp capacity?

40 Amp circuit breaker is usually 240 Volt and it goes to heat pump, double oven, or some heavy equipment. 40 amp breaker uses 8 gauge wire.

You can figure a circuit with the formula V x A = Watt
If your VA is 7500 Watts and voltage is 240, then Amps is 31.25

Oct 13, 2010 | Siemens /ite Bq Circuit Breaker Bq3b090 3p...

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We have a wet location with a need for a 3 pole 30 amp Siemens BL circuit breaker to feed the peice of equipment and would like to have ground fault protection. Is this Breaker available in GFI?


I see you're looking for a 3 pole 30 amp Siemens BL cir. brkr.? I don't believe they make a this type of breaker in a 3 pole. In a 2 pole yes, but not a 3 pole. Also, I see on top of your message, it says Siemens #MP120GF 20 amp SP GFI Breaker. Now, if this is what you're looking for, I do know they have one. If you're working out of a home, I'm sure you have a 240 volt service, and a 3 pole wouldn't work here anyway. I'm just checking, but do feel free to contact me for this, or any other questions you may have. Good Luck to you, and I hope I was able to help you in some way. - Jim

Mar 31, 2010 | Siemens #MP120GF 20A SP GFI Breaker

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I need to strap two single pole breakers together to make 2 pole.


this is a double pole circuit breaker that is used for a 240 volt device the bar in the middle is to shut down at the same time you can take it to a hardware store to replace it but the bar is factory made siemens is one common breaker or there might be a substute they can give you also

Dec 01, 2008 | Siemens 2 single pole 15 amp breaker

1 Answer

What size breaker do I need for a 240 volt electric clothes dryer


check on the wiring diagram. You may be looking at 2-15 amp or 2-20 amp breakers.

Nov 12, 2008 | Fahrenheat Electric Convector Baseboard...

1 Answer

What Size Circuit Breaker


a 750 watt heater at 240 volts draws 3.15 amps so a 2 pole 15 breaker with 14/2 wire would be fine

Nov 11, 2007 | Fahrenheat Electric Convector Baseboard...

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