This is a question on 4 pole switching nuetral. In our specification we called for fusible manual transfer double throw switch rated for service equipment application, 225A, and a switching neutral. However, I have resreached several companies, they do not make any fusible switch that comes with 4-pole. Why is 4-pole option not avilable? Moreover, I was told these profucts are not UL rated? Is it becasue when you switch or separate a bonded neutral that becomes a concern? How do you get a switching neutral for bonding to a separately derived system per NEC that will satisfy the UL requirement?
Red Flag Submitted
Thank you for helping keep Eng-Tips Forums free from inappropriate posts. The Eng-Tips staff will check this out and take appropriate action.
Reply To This Thread
Posting in the Eng-Tips forums is a member-only feature.
Designers in every industry are being pushed to produce larger and more complex product assembles. Add to that the demands that new software features place on your hardware, and you can be in for some serious performance issues. Download Now