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DIYGST 03-03-2009 03:26 PM

Extension Box
The polaris copper to aluminum connector is a little bulky, I think I need an extension box, to make the volume bigger. I am using a cooktop and there is space behind the cabinet,
extending the box is OK right?

Are the extenders metal or plastic? I have not seen one, does it attach with 4 holes to the corner of a square cover box?

Bob Mariani 03-03-2009 04:40 PM

4" extension boxes are available and would add the the allowed volume. But these are attached with two screws, not four to the box. you can also use extension (P-Rings) rings which will provide the screw positions for the cover plate.

DIYGST 03-03-2009 04:52 PM

4" is too much extension, another 1" or so might be good.

I was concerned about how it attaches, because the builder simply cut out plastic on top to let the 8 gauge cable come from the top, I suppose the cable is too thick.

it only have provision nows to attach a square cover with 4 screws.

Bob Mariani 03-03-2009 06:20 PM

4" is the size of the box, not it's depth. Extension boxes are 1 1/2" deep. P-Rings are flat to 2" deep with 1/8" increments

J. V. 03-05-2009 11:52 AM

Must it be mounted flush? If not, you can get a deeper box and surface mount it behind the cook top or range. Would be much easier and compliant.

Jim Port 03-05-2009 02:15 PM

Why are you pigtailing copper to the aluminum wires?

Is this a new install with new wires?

DIYGST 03-05-2009 03:34 PM


Originally Posted by Jim Port (Post 240618)
Why are you pigtailing copper to the aluminum wires?

Is this a new install with new wires?

Old house, and appliance comes with copper wires
I have had a long question here before and the polaris connectors are approved to join them safely.

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