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ASCO 3AUS 3PH 3-Pole 30-400A Service Entrance Rated Automatic Transfer Switch

The ASCO 3AUS 3PH 3-Pole 30-400A Service Entrance Rated Automatic Transfer Switch combines automatic power switching with a utility circuit breaker as a disconnect device. This transfer switch meets all National Electrical Code requirements for installation as service entrance equipment. SER transfer switches are generally installed at facilities that have a single utility feed and a single emergency power source. A circuit breaker serves as the utility disconnect and links are provided to connect both neutral and ground conductors.

These switches use the same reliable transfer switching mechanism and controller as the SERIES 300 product platform. This ASCO 3AUS 3PH 3-Pole 30-400A ATS also includes a utility circuit breaker as a disconnect device.

ASCO 300 Catalog pdf

Showing all 7 results

  • ASCO 300 SE 70-400 Amp

    100 Amp ASCO 300 Service Entrance Rated Automatic Transfer Switch 3 Phase 3 Pole

    D3AUSA30100XGOX
    Sale!
    $ 4,357.00
  • ASCO 300 SE 70-400 Amp

    150 Amp ASCO 300 Service Entrance Rated Automatic Transfer Switch 3 Phase 3 Pole

    D3AUSA30150XGOX
    Sale!
    $ 4,489.00
  • ASCO 300 SE 70-400 Amp

    200 Amp ASCO 300 Service Entrance Rated Automatic Transfer Switch 3 Phase 3 Pole

    D3AUSA30200XGOX
    Sale!
    $ 4,853.00
  • ASCO 300 SE 70-400 Amp

    225 Amp ASCO 300 Service Entrance Rated Automatic Transfer Switch 3 Phase 3 Pole

    D3AUSA30225XGOX
    Sale!
    $ 5,102.00
  • ASCO 300 SE 70-400 Amp

    250 Amp ASCO 300 Service Entrance Rated Automatic Transfer Switch 3 Phase 3 Pole

    J3AUSA30250XGOX
    Sale!
    $ 5,651.00
  • ASCO 300 SE 70-400 Amp

    400 Amp ASCO 300 Service Entrance Rated Automatic Transfer Switch 3 Phase 3 Pole

    J3AUSA30400XGOX
    Sale!
    $ 6,816.00
  • ASCO 300 SE 70-400 Amp

    70 Amp ASCO 300 Service Entrance Rated Automatic Transfer Switch 3 Phase 3 Pole

    D3AUSA30070XGOX
    Sale!
    $ 4,227.00