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Old 03-11-2009, 12:22 PM   #16
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#6 aluminum cable


Its not a pull out, but it works just fine.

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Old 03-11-2009, 12:58 PM   #17
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#6 aluminum cable


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Originally Posted by rgsgww View Post
Its not a pull out, but it works just fine.
Not at 277 it won't. To the OP, what is it exactly you are trying to do? Aluminum wiring won't cause your timer to "blow".
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Old 03-11-2009, 01:22 PM   #18
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#6 aluminum cable


trying to connect #6 aluminum cable to a 40 amp mechanical time switch.
hooked it up to new timer and timer won't work.
Emailed to Intermatic Manufacturing who says you cannot connect aluminum cable to this timer. (40 amp double pull single throw 208-277 V AC 60 Hz)
Trying to hook up aluminum to something else and then take copper from there to the timer.
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Old 03-11-2009, 01:25 PM   #19
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#6 aluminum cable


Quote:
Originally Posted by penticton View Post
trying to connect #6 aluminum cable to a 40 amp mechanical time switch.
hooked it up to new timer and timer won't work.
Emailed to Intermatic Manufacturing who says you cannot connect aluminum cable to this timer. (40 amp double pull single throw 208-277 V AC 60 Hz)
Trying to hook up aluminum to something else and then take copper from there to the timer.
I get that part, what I'm driving at is, what voltage are you working at? The timer you specify will only work on 208-277 V.
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Old 03-11-2009, 01:48 PM   #20
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#6 aluminum cable


working at 240 Volts
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Old 03-11-2009, 02:43 PM   #21
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#6 aluminum cable


Quote:
Originally Posted by InPhase277 View Post
I get that part, what I'm driving at is, what voltage are you working at? The timer you specify will only work on 208-277 V.

I missed the 208/277 part

It *disconnect I showed* will not work just fine for 277.

Last edited by rgsgww; 03-11-2009 at 02:57 PM.
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Old 03-11-2009, 02:54 PM   #22
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#6 aluminum cable


If the timer is designed to work in the range 208-277V, then it will work just fine at 240V.
As was pointed out, the AL wire will not cause the timer to blow. Make sure you have the correct voltage timer, and make sure you are connecting it properly.
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Old 03-11-2009, 03:04 PM   #23
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#6 aluminum cable


okay , now I am confused.
Can I use the 60 A 240 Vac disconnect box to attach the #6 aluminum cable and then go with 8/3 copper from the disconnect box to the time switch?
Will I be using Penetrox A when I connect the aluminum cable to the disconnect box?
Thanks
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Old 03-11-2009, 04:06 PM   #24
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#6 aluminum cable


Quote:
Originally Posted by penticton View Post
okay , now I am confused.
Can I use the 60 A 240 Vac disconnect box to attach the #6 aluminum cable and then go with 8/3 copper from the disconnect box to the time switch?
Will I be using Penetrox A when I connect the aluminum cable to the disconnect box?
Thanks

The disconnect is ok if your working with 240v.

You cannot use 8 awg nm on a 50 amp breaker.

About the 6 awg aluminum, is it romex? What is the insulation type?
Nm cable is limited to the 60 deg column.
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Old 03-11-2009, 04:28 PM   #25
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#6 aluminum cable


About the 6 awg aluminum, is it romex? What is the insulation type?
Nm cable is limited to the 60 deg column.

Yes , the aluminum comes from the main 200 amp panel, it has a 50 amp breaker.
I am not sure if I fried the other timer, I just know that it is not working.
I have another new one now , so would love to do this right.

The aluminum is: Alcan SM 3C 6 AWG ACM Nual NM D 90 XlFE 3000 Ft1 CSA . hope this answers that question.
I could use 6/3 from the connector box to the timer.
would I want to use the penetrox A compound on the aluminum connections in the connector box. ?
thanks
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Old 03-11-2009, 05:37 PM   #26
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#6 aluminum cable


What you need to do is replace the 50 amp breaker with a 40 amp since you derate nm cable to the 60c column, for AL, this is 40 amps.

After doing that, you can use 8 awg copper.

The anti oxidant is a good idea.
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Old 03-11-2009, 09:48 PM   #27
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#6 aluminum cable


Thank you, I think I've got it...

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