Industrial 50P-1161 MX250 Transfer Switch Controller

Industrial 50P-1161 MX250 Transfer Switch Controller is an ATS control controller board from GE-Zenith, designed for MX250 transfer switch assemblies within the Entelli-Switch family and intended for use in demanding industrial power environments. It acts as the control brain for automatic transfer switching, coordinating sensing, decision logic, and switching actions to move a load between utility and alternate sources when electrical conditions require a switchover. Part number 50P-1161 and the MX250 designation identify this board for Entelli-Switch applications in industrial power systems, clarifying its compatibility with MX250‑based transfer switches. This controller board provides MX250 Entelli-Switch control capability within industrial electrical infrastructure, enabling autonomous source switching to help maintain power reliability.