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Home Generators Generator Transfer Switch Generac 200A Automatic Transfer Switch NEMA 3R Indoor-Outdoor Whole House + 20-Circuit Load Center | RXGW20SHA3
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Generac 200A Automatic Transfer Switch NEMA 3R Indoor-Outdoor Whole House + 20-Circuit Load Center | RXGW20SHA3

$925.00

  • Generac 200A Automatic Transfer Switch | RXGW20SHA3
  • Service Entrance Rated Whole House Switch + Outbuildings Rated for Indoor-Outdoor use.
  • Load Center holds up to 20, 1-inch breakers or 40 tandem breakers.
  • Integrated Smart A/C Module manages up to 4 central air conditioners.
  • External Smart Management Modules manage up to 8 additional 240V loads.
  • USA Engineered and Built.
  • 24/7 Customer Service Center in Wisconsin, USA.
  • 5-Year Limited Warranty
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Category: Generator Transfer Switch
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Description

Generac 200A Automatic Transfer Switch

The Generac 200A Automatic Transfer Switch RXGW20SHA3 works with any Generator using an Evolution or Nexus Controller. The RXGW20SHA3 integrates a load center with pass-through lugs to protect your main breaker panel and supply your outbuildings via circuit breakers in the load center.

The service rated ATS has a NEMA 3R enclosure for indoor and outdoor use with powder coat paint on aluminum construction for years of outdoor use. Replaces the Generac 8 circuit automatic transfer switch RXSW200A3F

Generac Load Center 200A Automatic Transfer Switch

A RXGW20SHA3 Generac 200A Load Center Automatic Transfer Switch works with your Evolution or Nexus equipped Generac standby generator on service equipment up to 200 amps. Equipped with an open transition, heavy duty contactor, the ATS disconnects the utility lines before connecting the generator. Pass through lugs supply your home’s main panel while circuit breakers in the load center protect outbuildings.

A NEMA 3R rated aluminum enclosure with a powder-coat baked on finish allows installation outdoors or indoors for years of service. The wall mounted ATS installs between the electric utility meter and the main service panel.

An integrated load center can supply outbuildings like a shed, garages, and barns. It accepts up to 20 standard 1-inch circuit breakers from Siemens, Murray, Square D, and Eaton. Also accepts GFCI, AFCI breakers. With tandem breakers, it can serve up to 40 circuits. Circuit breakers for the load center are not included and may be purchased locally.

The integrated Smart A/C Module (SCAM) allows the Generac 200A Automatic Transfer Switch to manage 4 central air conditioners with no additional hardware required. Smart Switch Power Management allows a smaller, more fuel-efficient generator to supply more 240-Volt loads by running them when power is available. One load stops, and the ATS allows the next to start.

Optional Smart Management Modules (sold separately) allow the Generac Load Center 200-Amp ATS to manage 8 additional 240-Volt loads. SMMs allow the Smart Switch to manage appliances like water heaters, deep well pumps, electric dryers, and electric ranges.

Generac designed and built the Generac 200A Automatic Transfer Switch RXGW20SHA3 in the USA. Generac PowerSystems makes its headquarters in Waukesha, Wisconsin with factories and other facilities in the Midwest.

The company staffs their 24/7 customer service center in Wisconsin to answer questions and solve problems any day of the year.

The Generac 200A Automatic Transfer Switch Load Center RXGW20SHA3 comes with a 5-Year Limited Warranty.

200-Amp Automatic Transfer Switch

The Generac Load Center 200A Automatic Transfer Switch RXGW20SHA3 replaces the Generac automatic transfer switch 8 circuit RXSW200A3F load center with a larger, 20-circuit ATS panel. The load center can power individual circuits through a circuit breaker or supply separate sub-panels for each building.

Compatibility with Arc Fault Circuit Interrupters (AFCI) and Ground Fault Circuit Interrupters (GFCI) provides code compliance and additional safety. The ability to use tandem breakers extends the capability of the Generac 200A Automatic Transfer Switch to more circuits for greater versatility.

Product Specifications

Model

Model Number; RXGW20SHA3

Manufacturer; Generac Power Systems

Made In USA; Yes

Type; Automatic Transfer Switch

Transfer Switch Model; RXGW20SHA3

Warranty Information

Consumer Warranty; Generac 5-Year Limited Warranty

Fuel

Fuel Gauge; No

Transfer Switches

Transfer Switch Amps; 200

Transfer Switch Circuits; 20 single pole or 40 single pole tandem breakers

Ats Poles; 2

Transfer Switch Weight; 45

Shipping & Delivery
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Effective Date: August 9, 2025

At X Factors Motorsports, we are committed to delivering your order quickly, securely, and affordably.


1. Processing Time

  • Orders are typically processed within 1–2 business days after payment is confirmed.

  • Orders placed on weekends or holidays will be processed on the next business day.


2. Delivery Times

  • Domestic Shipping (United States): Delivery takes 5–7 business days from the date of shipment.

  • International Shipping: Delivery times vary by destination and may take 7–21 business days depending on customs processing and local delivery services.


3. Shipping Rates

  • United States: Free standard shipping on all orders.

  • International: Shipping costs are calculated at checkout based on the delivery address, package weight, and destination country.


4. Carriers Used

We ship orders using trusted carriers such as UPS, FedEx, USPS, and DHL to ensure reliable delivery. Tracking numbers are provided for all shipments.

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    At X Factors Motorsports, we specialize in high-performance engines, outboards, and premium automotive equipment. With expert support, fast shipping, and trusted brands, we help builders, racers, and enthusiasts power their passion — one project at a time.

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