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Generac RTSN400G3 Automatic Transfer Switch - 400 Amp 120/208V 3 Phase NEMA 3R CUL

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  • Electronically operated, mechanically-held contacts for fast, positive connections

  • Rated for all classes of load, 100% equipment rated both inductive and resistive

  • 160 millisecond transfer time

  • Single coil design


Availability: In stock

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No Payment Until 2018



  • Housed in an aluminum NEMA/UL Type 3R enclosure with electrostatically applied powder coating
  • The heavy-duty Generac Contactor is a UL recognized device, designed for years of service
  • The controller at the generator handles all of the timing, sensing, exercising functions, and transfer commands
  • All switches are covered by a 5 year limited warranty



Model # RTSN400G3
Amps 400
Voltage 120/208V, 3Ø
Load Transition Type (Automatic) Open Transition
Enclosure Type NEMA 3R
Withstand Rating (Amps) 35,000
Lug Range 600 MCM - #4 or 1/0 - 250 MCM
Dimensions - H x W x D (in. / mm)        36.1" x 24" x 10" / 916.9 mm x 609.6 mm x 254 mm
Weight (lbs. / kg) 160 lbs. / 72.6 kg


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