Share Your Feedback – Help Us Improve Search on Community!
Please take a few minutes to participate in our Search Feedback Survey. Your insights will help us deliver the results you need faster and more accurately.
Click here to take the survey
T300 for a 3-Source ATS System
Protection & Control
Schneider Electric support forum about Protection Relays, Substation Controllers & RTUs, Arc Flash Devices & Systems in Medium Voltage and Low Voltage. A place to get support on product selection, installation, commissioning and troubleshooting.
Search in
Improve your search experience:
Exact phrase→Use quotes " "(e.g., "error 404")
Wildcard→Use * for partial words(e.g., build*, *tion)
AND / OR→Combine keywords(e.g., login AND error, login OR sign‑in)
Keep it short→Use 2–3 relevant words, not full sentences
Filters→Narrow results by section(Knowledge Base, Users, Products)
Send a co-worker an invite to the portal.Just enter their email address and we'll connect them to register. After joining, they will belong to the same company.
You have entered an invalid email address. Please re-enter the email address.
This co-worker has already been invited to the Exchange portal. Please invite another co-worker.
Please enter email address
Send InviteCancel
Invitation Sent
Your invitation was sent.Thanks for sharing Exchange with your co-worker.
Link copied. Please paste this link to share this article on your social media post.
2025-11-1702:34 PM
T300 for a 3-Source ATS System
Hello everyone, I’m working on configuring a 3-source ATS using a Schneider PA T300, and I’m not sure which method is required.
Can this logic (source selection, priority, switching commands, interlocks) be done only with formulas inside Easergy Builder, or do I need to use ISaGRAF / FBD to build the control sequence?
If someone has already managed a 3-source ATS on a T300, which approach do you recommend, and why?