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Generac 200 Amp Automatic Transfer Switch w/ Service Entrance

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Generac 200 Amp Automatic Transfer Switch w/ Service Entrance

This product makes the difference between a truly automatic generator set and just another generator. When the power goes out, this switch automatically senses the failure, turns on your generator, and routes electricity to the circuits of your home. No toggles to flip, no knobs to turn, no extension cords to run during a blackout. You will have the comfort and peace-of-mind knowing that your Guardian stand-by generator does everything for you...automatically!


  • Housed in a Nema 3R steel enclosure
  • Electrostatically applied powder paint
  • Service entrance
  • Utility voltage drop-out:<60%
  • Timer to generator start: 15 seconds
  • Engine warm up delay: 10 seconds
  • Standby voltage sensor: 90%
  • Utility voltage pickup: >80%
  • Re-transfer time delay: 15 seconds
  • Engine cool down timer: 60 seconds
  • Exerciser: 15 minutes every 7 days
  • Load Transition Type: Open Transition
  • Withstand Rating (Amps): 10,000
  • Lug Range: 400 MCM - #4
  • Designed to operate with a Generac R-series controller
  • UL 1008 listed for standby operation
  • External Dimensions 120/240V, 1 Phase

Product Details:

  • Frequency: 60 Hertz
  • Number of Phases: 1
  • Amperage: 200 Amps
  • Generator Type: Standby generator
  • Outdoor Use: Yes
  • UL Listed: Yes
  • Product Warranty: 2 year limited


  • Overall: 23.5" H x 13" W x 7" D
  • Overall Product Weight: 140lbs

Generac 200 Amp Automatic Transfer Switch w/ Service Entrance

Additional Documents

Generac Brochure

Weights & Dimensions

  • Overall: 23.5" H x 13" W x 7" D
  • Overall Product Weight: 140lbs


Product Type: AutomaticFinish: Tan
Material: Metal
  • Material Details: Aluminum
Hardware Material: Stainless steel
Weather Resistant: Yes
  • Weather Resistant Details: Aluminum enclosure
Water Resistant: Yes
  • Water Resistant Details: Aluminum enclosure
Rust Resistant: YesTarnish Resistant: Yes
Frequency: 60 HertzNumber of Poles: 2
Number of Phases: 1Amperage: 200 Amps
Service Entrance Included: YesCover Included: No
Load Center Included: NoCord Included: No
Generator Wattage Meter: NoGenerator Type: Standby generator
Outdoor Use: YesCommercial Use: Yes
Eco-Friendly: YesCountry of Manufacture: United States


Assembly Required: NoInstallation Required: Yes


Product Warranty: 2 year limited 


CARB Compliant: YesNEMA Certified: Yes
UL Listed: YesUL 1008 Listed: Yes

About the Manufacturer

Since 1959, Generac Power Systems, Inc. has been a leading, innovative manufacturer and marketer of portable and standby generators, automatic transfer switches, modular paralleling systems, and small engines for recreational vehicle, residential, and commercial applications. Generac’s power systems range in output from 2 to 9,000 kilowatts.

Generac 200 Amp Automatic Transfer Switch w/ Service Entrance

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    When you buy a Generac 200 Amp Automatic Transfer Switch w/ Service Entrance online from Wayfair, we make it as easy as possible for you to find out when your product will be delivered. You can check on a delivery estimate for the Generac Part #: RTSY200A3 here. If you have any questions about your purchase or any other Generator Transfer Switches product for sale our customer service representatives are available to help.Whether you just want to buy a Generac 200 Amp Automatic Transfer Switch w/ Service Entrance or shop for your entire home, Wayfair has a zillion things home.
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    OUR SKU # GDN1050

    200 Amp Automatic Transfer Switch w/ Service Entrance is also sometimes listed under the following manufacturer numbers: RTST200A3