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LP/Natural Gas Generators Home: Generac 400A ATS 3Ph Outdoor



3-Phase Switch - 400 Amps







This RTSN-Series auto switch from Generac can be obtained in these 3-phase voltage configurations: 120-208; 120-240; 277-480. Housing is steel NEMA 3R for indoor or outdoor installation. Switch is open transition model (non-service entrance rated) - designed for use with Generac QuietSource, Guardian, and Commercial-Series standby generators from 22 kW to 150 kW. Comes with adjustable timer to generator start. 2-year manufacturer's warranty.




  • Important: See the shipping tab for information regarding our liftgate option, and residential versus commercial deliveries. At present, because T-Rex is shipping Generac products direct from the company's Wisconsin-based factory, any
  • residential delivery weighing in excess of 80 lbs will require the $75.00 liftgate shipping option. Shipments to commercial addresses (non-residences) remain exempt from these charges unless specified by customer.

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    Model:  RTSV400X3
    Price:  $1,999.50
    Available Options:
    3-Phase Voltage:
    Type Delivery Preferred:

    Model Specs



    Manufacturer: Generac
    Model #: RTSN400X3
    Model Description: 400-Amp RTS Three-Phase Automatic Transfer Switch (Outdoor Model)
    Rating: Open
    Built-In Load-Shedding Capability?: No
    Price (208/240-Volt): $1,999.50
    Price (480-Volt): $2,238.00


    Input
    Voltage (AC): 120/208
    Voltage (AC): 120/240
    Voltage (AC): 277/480
    Phase: Three
    Frequency: 60 Hz
    Maximum Generator kilowatts: NA
    Rated Amps: 400
    Maximum Generator Amps: NA
    Maximum Withstand Amps: 18000 (All)
    Number of Poles: 3
    Number of Circuit Breakers: NA


    Power Management
    Startup Delay (After Power Interruption): Adjustable (10 - 30 Seconds)
    Engine Warm-Up Duration: 5 Seconds
    Engine Cool-Down Period: 60 Seconds
    Exerciser: Every 7 Days (12 Minutes)
    Minimum Run Time: NA
    Return to Utility (Retransfer): 15 Seconds
    Voltage Sensing (Normal Power Source): Yes
    Voltage Sensing (Standby Source): Yes
    Frequency Sensing (Standby Source): No


    Measurables
    UL Listing: Yes
    Weight (All): 133 lbs
    Dimensions - Inches (208/240-Volt): 10.0(Depth) x 24.0W x 36.1H
    Dimensions - Inches (480-Volt): 13.1(Depth) x 30.1W x 48.1H
    Cabinet Type: NEMA 3R


    Additional Information
    Compatible with Generac liquid-cooled generators
    Non-service rated; open transition
    Silver-plated main contacts
    100% equipment rated
    Rated for all classes of load, inductive and resistive
    Dual coil design
    160 millisecond transfer time



    Spec Sheet Pdf


    Generac RTS-Series 3-Phase ATS 100-400A Spec SheetGenerac RTS 3-Phase ATS 100-400A Spec Sheet


    Warranty


  • 24-month manufacturer's limited warranty

  • Shipping

    NOTE: all Generac residential shipments weighing in excess of 80 lbs require our $75.00 liftgate shipping charge (by Generac policy). Liftgate service is optional for commercial deliveries. This policy change does not apply to shipments from other manufacturers.
    The T-REX Free Shipping Pledge:


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    T-Rex Generators distributes products from many different standby and portable generator manufacturers at substantially discounted prices. These represented companies include: Asco automatic transfer switches, Briggs & Stratton generators, Winco generators, Generac Generators, GenTran transfer switches, Reliance Controls 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.