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Asco 300 104A 1-Phase Indoor Automatic Transfer Switch



…Great for Selected-Circuit 1-Phase Backup







Asco 300-Series automatic transfer switches are heavy-duty commercial-grade models that can be used for commercial or residential purposes. This 104-Amp 1-phase model is open-transition rated; this means that it does not harbor an internal circuit breaker for disconnecting the utility or main power source before backup generator power is applied. An electrician handling installation of the switch will need to supply that breaker, however this is a simple and routine procedure. We recommend this switch for the following Winco standby generators: models PSS8B, PSS12H, PSS15B, PSS21-3, PSS30LS-3, PSS40LS-3, PSS60LS-3, and PSS90LS-3. Standard 18-month warranty. Optional extended warranties available at checkout (see Accessories tab for details).




  • Important: Please see the shipping tab for information regarding the freight on generator accessories.

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    Model:  300/104-3I
    Price:  $1,521.00

    Model Specs



    Manufacturer: Asco Power
    Model #: Series 300/104-3I
    Model Description: 104-Amp 1-Phase Automatic Transfer Switch (Indoor Model)
    Rating: Open
    Built-In Load-Shedding Capability?: No
    Price: $1,521.00


    Input
    Voltage (AC): 120/240
    Phase: Single
    Frequency: 60 Hz
    Maximum Generator kilowatts: NA
    Rated Amps: 104
    Maximum Generator Amps: 104
    Maximum Utility Amps: NA
    Number of Poles: 2
    Number of Circuit Breakers: NA


    Power Management
    Startup Delay (After Power Interruption): Adjustable
    Engine Warm-Up Duration: Adjustable (0 - 5 Minutes)
    Engine Cool-Down Period: 5 Minutes
    Exerciser: Every 7 Days
    Minimum Run Time: NA
    Return to Utility (Retransfer): Adjustable (Up to 30 Minutes)
    Voltage Sensing (Normal Power Source): Yes
    Voltage Sensing (Standby Source): No
    Frequency Sensing (Standby Source): Yes


    Measurables
    UL Listing: Yes
    Weight: 72 lbs
    Dimensions (Inches): 11.7(Depth) x 17.5W x 31H
    Cabinet Type: NEMA 1


    Additional Information
    Weekly test (exercise) mode can be used with or without load
    Motor-load monitoring allows motors to continue operating during power transfer
    Standard remote-controlled test, other operational and monitoring switches
    200,000-amp fuse-related withstand capacity; 65,000-amp circuit-breaker related withstand capacity
    Available manufacturer's extended warranties from 2 to 5 years; choose desired plan when ordering
    Model also available with NEMA 4 or NEMA 12 enclosure; call for details



    Warranty


  • 18-month limited warranty

  • Shipping


    Asco transfer equipment is shipped either from T-Rex facilities in Utah, or from Asco factory locations in New Jersey or Texas, via standard UPS ground. In all instances, T-Rex makes no profit on shipping. For every accessory we sell, our customers will be charged only what Asco or another vendor has charged us. Shipping to your location will be calculated during checkout. Please allow up to 10 business days for delivery.


    Accessories


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    T-Rex Generators distributes products from many different portable generator manufacturers at substantially discounted prices. These represented companies include: Asco automatic transfer switches, Kipor generators, Briggs & Stratton generators, Winco generators, Generac Generators, Honeywell Generators, Powermate Generators, Pramac Generators, Gentron generators, GenTran transfer switches, Reliance Controls Transfer Switches, Briggs and Stratton transfer switches, and Zenith automatic transfer switches. T-Rex also carries Honda powered generators which have the same time-tested Honda engines as the substantially more expensive Honda generator brand units. T-REX electric generator products include: portable generators, power generators, emergency generators, quiet generators, inverter generators, digital generators, portable electric generators, camping generators, back-up power generators, portable diesel generators, electric power generators, and emergency power units. Generator accessories available through T-Rex include the transfer switch, manual transfer switch, power cords, generator cords, Reliance Controls transfer switch, covers, plugs, connectors, wheel kits, dolly kits, and power inlet box.