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ATC Molded Case Circuit Breaker & Molded Case Switch Automatic Transfer Switch

Cat® transfer switches are designed for a variety of standby power applications. They provide flexibility, reliability and value in a compact package. The open transition breaker-based Automatic Transfer Switch (ATS) will provide fully functioning transfer in applications where a momentary loss of power is acceptable on retransfer from emergency to normal power supply. The Cat Open Transition MCCB & MCS types of ATS also permits periodic testing of the emergency source without interrupting power to the loads and are available from 30 to 1000 amperes.

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    Product Specs

    Technical Summary

    Rating Range 30-1000A
    Transfer Type Open transition
    Switch Type Molded Case


    Control Power 30-1000A 2, 3, or 4 Pole, 100% Rated
    System Voltage Application 120 - 600 Vac, 50/60 Hz
    Withstand 100,000 amps withstand/closing/ interrupting at480 Vac
    Applicable Testing CSA C22.2 No. 178 certified
    IBC 2006, CBC 2007 and OSHPD