Quote:
Originally Posted by Al Skierkiewicz
William and Mike,
I don't think that the Q&A fully addressed the cutting of the jumper plugs. If that is allowed in the future, it must include a note to fully insulate the cut end. Quite frankly, the majority of weight is already there, and having an extra block to add functionality later would be a desirable thing. If you are using a four motor drive and 40 amp breakers, you need at least two red and three black blocks anyway.
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The instructions on assembly for the module specifically state that it can be cut:
http://www2.usfirst.org/2007comp_173...Strip%20R3.pdf
Quote:
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15) The assembly may be shortened as desired by removing the extra terminals and cutting the DIN rail and the center jumper bar(s) to the desired length(s).
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In addition, a 4 motor drive with 40A breakers, and only one 20/30A fuse block could be satisfied with 2 red and 2 black, as the same document states that you can put 2 10ga or 3 12ga wires in the same connection:
Quote:
Maximum Wire Size and Max Quantity Allowed per 1492-J16xx Terminal
1 - #6 or
1 - #8 or
2 - #10 or
3 - #12 or
4 - #14 or
4 - #16
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(2 connections for 4 12ga wires and 2 connections for 2 6ga wires on the black, 3 connections for 3 6ga wires on the red).
Given that these are the instructions they are providing us on how to assemble this, unless there is a rule that specifically makes this illegal (which I was unable to find), as far as I am concerned it should be legal.