ASCO Two-Source Automatic Transfer System

Switch loads efficiently for uninterrupted operations with ASCO Two-Source Systems, designed for automatic switching of loads between the utility source and an alternate source of power.

  • Normal, emergency, and/or load circuit breakers.
  • Protective relaying (as required).
  • Optional instrument meters for normal, emergency, or load for local monitoring.
  • Designs are based on NEMA and UL 891 standards.
  • Optional engine start control logic and/or load control logic.
  • Available up through 4000 amperes using ASCO 7000 SERIES automatic transfer switches. 7ATS, 7ATB, 7ACTS and 7ACTB.