ATS Neutral Overlapping or Sw???

[Mike01]

Netural configurations for automatic transfer switches where multiple sources and ground fault protection is required?? why??

 

[ron]

I think overlapping is only ASCO. Russelectric is regular open transition neutral switched.
Both will tell you that there's is better.
Conceptually, I like the idea of closed transition neutral, but I don't make it a deal breaker for competitive bidding.

 

[chris kennedy]

I think overlapping is only ASCO.

ASCO makes a 480y/277V at 1000A or better in a 3 pole? I have never seen one.

 

[ron]

ASCO makes them in many ampacities.
They are the only one that makes a overlapping neutral fourth pole even with an open transition phase switches.

 

[Mike01]

White Paper

White Paper

at the link below is a eaton ats site on the right side is a white paper (35 pages) about 3 and 4 pole transfer switches pretty intresting.


http://www.eaton.com/EatonCom/Markets/Electrical/Products/index.htm