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ATC Service Entrance Rated MCCB & Power Breaker Based ATS

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    Cat® Service Entrance Rated (SER) automatic transfer switches (ATS) are designed to provide standby power emergency power to entire installation loads to protect against utility power interruption; yet allow the ATS to be as close as possible to the point of service entrance. By safely and in code compliance, integrating the necessary overcurrent protection and service disconnecting means into the automatic transfer switch, a single installation can be made at the service entrance. This design eliminates the need for a separate upstream fault protection and respective interconnections, which in turn reduces installation space, time, and cost. Breaker-based Service Entrance Rated transfer switches are available from 30A to 5000A.

    Pricing: Contact for Pricing

    Request a New Equipment Quote

    Fill out this form below and we will get back to you within 1 to 2 business days! Alternatively, give us a call at 833-286-3561


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      Cat® Service Entrance Rated (SER) automatic transfer switches (ATS) are designed to provide standby power emergency power to entire installation loads to protect against utility power interruption; yet allow the ATS to be as close as possible to the point of service entrance. By safely and in code compliance, integrating the necessary overcurrent protection and service disconnecting means into the automatic transfer switch, a single installation can be made at the service entrance. This design eliminates the need for a separate upstream fault protection and respective interconnections, which in turn reduces installation space, time, and cost. Breaker-based Service Entrance Rated transfer switches are available from 30A to 5000A.

      Pricing: Contact for Pricing

      Request a New Equipment Quote

      Fill out this form below and we will get back to you within 1 to 2 business days! Alternatively, give us a call at 833-286-3561


        This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

        Request a Quote Request Demo
        Rating Range 30-5000A
        Switch Type Molded Case and Power Breaker
        Transfer Type Open / Closed / Delayed
        Applicable Testing
        UL 1008 listed up to 3200A

        4000A, and 5000A UL 891 listed
        Drawout Power Breaker 200-5000A 2, 3, or 4-Pole
        Fixed Mount Power Breaker 200-3200A 2, 3, 4-Pole
        MCCB 30-1000A 2, 3, or 4 Pole
        System Voltage Application 120-600 Vac 50/60 Hz
        Withstand (Power Breaker) Up to 100 kAIC at 600V 3 cycles

        Standard Equipment:

        • All controls relays and industrial grade relays are totally encapsulated to minimize exposure to dust and dirt. Lugs are 90º rated and all control wire is #16 AWG, type XLPE with a 125º temperature rating.
        • Durable powder-coated steel NEMA 1, 3R or 12 enclosures with three door hinges to ensure proper support of the door and door mounted devices. The hinges have removable hinge pins to facilitate door removal for easy wall mounting or service and are supplied with pad-lockable latches.

        Optional Equipment:

        • 4-position test switch
        • Remote communications
        • Surge suppression
        • Selectable automatic or non-automatic operation
        • Seismic Zone 4 Qualified (BOCA, CBC, IBC, UBC and OSHPD)
        • Communications for the ATC-300+ controller via RS-232 or Modbus through an integrated RS-485 port
        • Field selectable, multi ratio, control voltage transformer 50/60 Hz
        • Load sequencing contacts
        • Multi-meter options available
        • Open, closed or delayed transition
        • Space heaters
        • Integral overcurrent protection
        • Pre-transfer signal with 1 N.O. and 1 N.C. contacts
        • Time delay neutral

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