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Home Generators Generator Transfer Switch Generac 400 Amp Automatic Transfer Switch Single Phase Nema 3R | RTSC400A3
Generac 600 Amp Automatic Transfer Switch Single Phase Nema 3R | RTSC600A3
Generac 600 Amp Automatic Transfer Switch Single Phase Nema 3R | RTSC600A3 $3,099.00
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Generac 300 Amp Service Rated Automatic Transfer Switch Single Phase Nema 3R | RTSW300A3
Generac 300 Amp Service Rated Automatic Transfer Switch Single Phase Nema 3R | RTSW300A3 $1,869.00

Generac 400 Amp Automatic Transfer Switch Single Phase Nema 3R | RTSC400A3

$1,399.00

  • Designed for use with single phase generators that utilize an Evolution or Nexus controller
  • Nema 3R Steel Enclosure can be installed indoors or outdoors
  • Enables full-circuit coverage, when an additional main disconnect is properly installed in the field
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Category: Generator Transfer Switch
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Description

Generac’s 400 Amp non-service rated automatic transfer switch enables full-circuit coverage, when an additional main disconnect is properly installed in the field.

Every home standby power system needs a transfer switch. It’s how your generator makes sure the power stays on when there’s an outage – automatically switching your home’s circuits from the grid to your generator.

Featuring a Nema 3R steel enclosure, this particular switch can be installed either indoors or outdoors.

Through the use of digital power technology (DPM), this switch has the capability to manage up to 4 individual HVAC (24 VAC controlled) loads with no additional hardware.  DPM technology – Load management systems are designed to work together to prevent a generator from being overloaded by large appliance loads.  Multiple air conditioner loads (up to 4) can be managed with DPM.  Loads to be “shed” are in 4 priority levels.  Up to 8 more loads can be managed as well, providing the most installation efficient power management options available with the use of Smart Management Modules.

Designed for use with single phase generators that utilize an Evolution or Nexus controller.  Compatible with Generac Smart Management Modules, sold separately.

Tested and listed for safe, reliable performance.

Product Specifications

Model

Model Number; RTSC400A3

Manufacturer; Generac Power Systems

Made In USA; Yes

Voltage; 120/240V Single Phase

Enclosure; Nema 3R Indoor/Outdoor

UL Listed; Yes

Type; Automatic Transfer Switch

Transfer Switch Model; RTSC400A3

Features

Dimensions; 36H x 24W x 10.06D

Warranty Information

Consumer Warranty; 5 Year Limited

Commercial Warranty; 5 Year Limited

Fuel

Fuel Gauge; No

Transfer Switches

Transfer Switch Amps; 400

Transfer Switch Circuits; Whole Panel

Ats Poles; 2 Pole

Transfer Switch Weight; 133 lbs

Shipping & Delivery
wd-ship-1
wd-ship-2

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.

    • 1204 E Yorba Linda Blvd, Placentia, CA 92870, USA
    • Phone: +1 (714) 694-3374
    • E-mail: sales@xfactorsmotorsports.com
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