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ATC Service Entrance Rated MCCB & Power Breaker Based ATS

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.

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Benefits

ATC-300+ or ATC-900 on MCCB & Power Breaker ATS products Keyed service entrance switch

Draw-out type breakers (available on Power Breaker ratings) UL 891 for 4000-5000A

All controls relays and industrial grade relays

Lugs are 90� rated and all control wire is #16 AWG, type XLPE with a 125� temperature rating

Durable powder-coated steel NEMA 1, 3R or 12 enclosures with three door hinges.

The hinges have removable hinge pins to facilitate door removal and are supplied with pad-lockable latches.
  • Ratings
    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
  • Technical Summary
    Rating Range
    30-5000A
    Switch Type
    Molded Case and Power Breaker
    Transfer Type
    Open / Closed / Delayed
Controls and Wiring
  • 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.
Enclosure
  • 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.
Available Options
  • 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
Optional Delayed Transition includes:
  • Pre-transfer signal with 1 N.O. and 1 N.C. contacts
  • Time delay neutral