Generac 400 Amp Service Rated Automatic Transfer Switch Single Phase Nema 3R | RTSW400A3

Original price was: $3,142.00.Current price is: $2,645.00.

  • Automatic Service Rated Transfer Switch
  • Nema 3R Aluminum Enclosure, Suitable for indoors or outdoors
  • Tested and Listed for safe, reliable performance
  • Limited 5 Year Warranty
  • Ships Free with a Generator or $48.00 Shipping Fee Will Be Added
Category: SKU: RTSW400A3


Generac’s 400 Amp service rated automatic transfer switch offers whole-house coverage for your back-up power needs.

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 aluminum 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 managmeent 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 Smart Management Module, sold separately.

Tested and listed for safe, reliable performance.

Tech Spec Summary: Only For Use w/ Generac Generators
Load Transition Type: Open Transition
Withstand Rating: 22,000 Amps — Lug Range: #4 or 2-250 MCM

UL Listed

USA Engineered and Built

400 Amps, Single Phase, Nema 3R, Service Rated Automatic Transfer Switch.

Additional information

Weight 140 lbs
Dimensions 10 × 22 × 48 in








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