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Old 06-12-2019, 11:20 PM   #1
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GFIC 20 Amp GFCI Breaker for DownSpout Heat Tape


I have a down spout that needs heat cable for winter. I wanted to use 12/2 wire with a Square D 20 Amp GFCI Double Pole Breaker. I have three wires in the Romex, black and white got to the breaker and bare copper goes to ground in panel. The white curled up wire from the breaker goes to all the white wires on the neutral bar. My only question is there is another wire hookup on the bottom of the breaker, is that just not used in this application ?
I wanted to wire a switch instead of a thermostat and just turn it on and off depending how much snow is on the roof.

edit; I think the bottom spot on the breaker is for a wire that would be used as a common if there was a hot tub or something that needs protecting, in this case it is just the heat tape and there are only three wires on the heat tape, two hots and a ground.

edit; in the title I meant to say heat cable not heat tape

Last edited by MiataBoy; 06-12-2019 at 11:36 PM.
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Old 06-13-2019, 01:00 AM   #2
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Re: GFIC 20 Amp GFCI Breaker for DownSpout Heat Tape


The white wire from the romex goes to the breaker instead of the bar. Then the "curled" white wire goes to the neutral bar. It should say "LINE" and "LOAD" on the breaker.
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Old 06-13-2019, 01:00 AM   #3
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Re: GFIC 20 Amp GFCI Breaker for DownSpout Heat Tape


Maybe this will help
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Old 06-13-2019, 04:32 AM   #4
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Re: GFIC 20 Amp GFCI Breaker for DownSpout Heat Tape


How are you dealing with the other end? Receptacle? You can't just hardwire a heat tape to Romex. You'll need a junction box, receptacle, and in-use bubble cover.
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Old 06-13-2019, 07:00 AM   #5
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Re: GFIC 20 Amp GFCI Breaker for DownSpout Heat Tape


If you have a double pole breaker as you stated, that would be 240v . Is that what you have,or a 120v single pole like the one in the video above?
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Old 06-13-2019, 07:19 AM   #6
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Re: GFIC 20 Amp GFCI Breaker for DownSpout Heat Tape


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Originally Posted by jhil View Post
If you have a double pole breaker as you stated, that would be 240v . Is that what you have,or a 120v single pole like the one in the video above?
it is a three phase panel so it ends up being 208v
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Old 06-13-2019, 07:20 AM   #7
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Re: GFIC 20 Amp GFCI Breaker for DownSpout Heat Tape


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Originally Posted by chandler48 View Post
How are you dealing with the other end? Receptacle? You can't just hardwire a heat tape to Romex. You'll need a junction box, receptacle, and in-use bubble cover.
it will tie into self regulating heat cable
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Old 06-13-2019, 07:24 AM   #8
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Re: GFIC 20 Amp GFCI Breaker for DownSpout Heat Tape


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Originally Posted by bigben662 View Post
The white wire from the romex goes to the breaker instead of the bar. Then the "curled" white wire goes to the neutral bar. It should say "LINE" and "LOAD" on the breaker.
Yeah I understand that black and white go to the breaker and the white curled wire from the breaker goes to the neutral bar. But, there is an additional spot for another wire on the breaker, three wire inputs, I don't know where to use the third hookup
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Old 06-13-2019, 07:28 AM   #9
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Re: GFIC 20 Amp GFCI Breaker for DownSpout Heat Tape


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Originally Posted by bigben662 View Post
Maybe this will help
The video is great, but I have a double pole breaker with a wire that only has three wires. Both black and white will be hot out of the breaker and the ground is grounded
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Old 06-13-2019, 08:34 AM   #10
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Re: GFIC 20 Amp GFCI Breaker for DownSpout Heat Tape


You do not have to worry about a neutral wire to connect to the breaker in this case.

Make sure you remark the white wire from the romex with black or red tape on both ends.
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Old 06-13-2019, 08:52 AM   #11
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Re: GFIC 20 Amp GFCI Breaker for DownSpout Heat Tape


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Originally Posted by MiataBoy View Post
The video is great, but I have a double pole breaker with a wire that only has three wires. Both black and white will be hot out of the breaker and the ground is grounded
According to the instruction sheet the additional terminal is for the load neutral wire. https://download.schneider-electric....f=48840-435-03 Since you don't have one, leave it empty.

I wired a self regulating heat tape system a few years ago. As I recall the manufacturer wanted a Ground Fault Equipment Protection Device, not a GFCI. The equipment protection device is rated at 30ma while the GFCI is rated at 5ma. Check your installation instructions.

Here is the Square D part number: QO(B)220EPD

It is also code required to have a lockout on the circuit breaker for servicing purposes. https://www.schneider-electric.us/en...ck-attachment/

The down spout was also required to be labeled indicating the presence of the heat tape and the voltage.
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