Second ATS not switching (Generac)

Not open for further replies.


New User
Just installed a 24KW Guardian with Evolution control. Two ATS (RXSW200A3), each feeding a main panel (400 amp service). E1 and E2 are wired to switch 1 and paralleled from Switch 1 to Switch 2. Switch 1 got T1, N1, N2, 0, 194, and 23 straight from Gen. Switch 2 got 0, 194, and 23 straight from Gen.

When simulating power outage by flipping service disconnect on both ATS to off at the same time, generator will start up, and Switch 1 will auto switch to gen power, however switch 2 does not. I manually move switch to gen power and all is well. Simulating power returning by switching both service disconnects on and switch 1 AND switch 2 go back to utility power automatically.

So everything works exactly as it should other than switch 2 will not automatically switch to gen power. Am I missing something easy here? Thank you!

Dennis Alwon

Staff member
Chapel Hill, NC
Electrical Contractor
I am closing this thread, in accordance with the Forum Rules.
This site is designed for:
  • Contractors
  • Electricians
  • Engineers
  • Inspectors
  • Instructors
  • Other electrically related individuals
* This NEC Forum is for those in the electrical and related industries. Questions of a "How-To" nature by persons not involved in the electrical industry will be removed without notice.
If you feel this action to be in error, feel free to contact me via PM to explain. Reminder to all members, if you see a questionable post, feel free to report it by clicking "Report" at the bottom left corner of the post.
Not open for further replies.