Generac Smart Switch 100 Amp S...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,199.39
GENERAC RXSW100A3 RXSW100A3 - Smart Switch 100 Amp Service Rated 120/240 1Ø NEMA 3R

Generac Smart Switch 100 Amp Service Rated Transfer Switch 120/240V Single Phase NEMA 3R

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Model: RXSW100A3
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Generac Smart Switch 100 Amp Service Rated Transfer Switch

Professional Automatic Transfer Switch with Smart Load Management

The Generac Smart Switch 100 Amp Service Rated Transfer Switch delivers intelligent backup power management and exceptional performance for residential and commercial applications. This 120/240V single-phase transfer switch provides dependable power transfer solutions designed for homeowners, contractors, and electrical professionals, offering the proven reliability and advanced engineering that customers trust from America's leading generator manufacturer.

Professional Features & Benefits

Smart Power Management

  • Digital Power Technology - Advanced single-phase service rated transfer switch manages 4 individual HVAC loads with no additional hardware required
  • Smart Load Management - Intelligent A/C module automatically sheds connected loads during generator frequency drops to prevent overload conditions
  • Simplified Installation - Combined load management and transfer switch hardware on single board reduces installation complexity
  • Maximum Generator Input Capacity - Supports up to 16000W maximum wattage for comprehensive home backup power coverage

Professional Construction & Safety

  • NEMA 3R Aluminum Enclosure - Indoor-outdoor rated enclosure with electrostatically applied and baked powder paint provides superior corrosion protection
  • UL Listed Safety Certification - ETL safety listing ensures compliance with electrical safety standards for professional installations
  • Compact Design - 16" width x 21" height x 9" depth dimensions with 22.5 lbs assembled weight for flexible installation options

Advanced Control Integration

  • Evolution/Nexus Controller Compatibility - Designed specifically for use with single-phase generators utilizing Generac Evolution or Nexus Controller systems
  • Smart Management Module Ready - Gain additional flexibility when used in tandem with Smart Management Module for expanded load control
  • Integrated Control Board - Smaller fuses integrated directly into control board reduce component complexity and improve reliability

Technical Specifications

Service Rating: 100 Amp, Voltage: 120/240V Single Phase, Maximum Generator Input: 16000W, Enclosure: NEMA 3R Aluminum, Dimensions: 16" W x 21" H x 9" D, Weight: 22.5 lbs assembled (20 lbs unit weight), Safety Certifications: UL Listed, ETL Safety Listed, Warranty: 5-Year Limited, Country of Origin: United States, Package Contents: Transfer Switch

Installation & Operation

  1. Mount NEMA 3R enclosure in appropriate indoor or outdoor location with adequate clearance for service access
  2. Connect utility service entrance conductors to utility side of transfer switch per local electrical codes
  3. Install generator input conductors from compatible single-phase generator with Evolution or Nexus controller
  4. Wire selected branch circuits through transfer switch load management system
  5. Configure smart load management settings for HVAC and priority circuits based on generator capacity
  6. Test automatic transfer operation and smart load shedding functionality to verify proper installation

Professional Applications

Ideal for:

  • Residential Backup Power - Whole house automatic transfer with intelligent load management for homes with central air conditioning systems
  • Small Commercial Applications - Professional backup power for small businesses, medical offices, and retail establishments requiring reliable power transfer
  • HVAC Load Management - Specialized applications requiring automatic management of multiple air conditioning units and heating systems
  • Generator Upgrade Projects - Retrofit installations where existing transfer switches need smart load management capabilities
  • Electrical Contractor Installations - Professional-grade transfer switch for licensed electricians performing backup power system installations
  • Critical Load Applications - Essential circuit protection for homes and businesses requiring uninterrupted power for medical equipment or security systems
  • Smart Home Integration - Advanced residential installations requiring intelligent power management and automated load control
  • Multi-Zone HVAC Systems - Properties with multiple heating and cooling zones requiring coordinated load management during backup power operation

Smart Load Management Advantage

Generac's digital power technology revolutionizes backup power management by automatically coordinating multiple HVAC loads without additional hardware. The smart A/C module continuously monitors generator frequency and automatically sheds loads during overload conditions, ensuring optimal generator performance and preventing system shutdown. This intelligent approach maximizes the effective capacity of your backup generator while maintaining comfort and essential services.

Why Choose Generac Quality?

Generac's commitment to reliable power generation extends to every component of the backup power system, including advanced transfer switch technology. The Smart Switch represents decades of engineering excellence in automatic transfer switch design, featuring comprehensive testing and quality control processes that ensure dependable operation when you need it most. As America's #1 selling generator brand, Generac provides trusted backup power solutions for homes and businesses, with innovative smart load management features that maximize system efficiency and a comprehensive 5-year limited warranty backed by nationwide service support.

Manufacturer Resources

Product Specs

Assembled Weight:
22.5 lbs
Contains Chemicals That Cause Birth Defects Calif Prop65 :
No
Country Of Origin:
United States
Csa Safety Listing:
No
Etl Safety Listing:
Yes
Manufacturer Warranty:
5-Year Limited
Maximum Wattage:
16000 W
Package Contents:
transfer switch
Restrictions:
No
Ul Safety Listing:
Yes
Department:
Electrical
Product Group:
Power Distribution
Product Subgroup:
Transfer Switch
Product Height:
21 in
Product Weight:
20 lbs
Product Width:
16 in
Product Depth:
9 in

Generac RXSW100A3 – Frequently Asked Questions

1) Will the Generac RXSW100A3 Smart Switch work with any brand of standby generator?
No. The RXSW100A3 Smart Switch is built for single-phase Generac generators running an Evolution or Nexus controller. The load management on the board talks to that controller, so pairing it with another brand's unit is not a supported install. If your standby set is a Generac with Evolution or Nexus controls, it's the right match.
2) What size generator can I run on a 100 amp Generac Smart Switch?
Maximum generator input is 16,000 watts on the RXSW100A3. That sets the ceiling: a single-phase Generac set at or below 16kW is within spec. Larger air-cooled or liquid-cooled units need a bigger switch. The service rating itself is 100 amp at 120/240V single phase.
3) Can this Generac transfer switch be mounted outside next to the meter?
Yes. The enclosure is NEMA 3R aluminum with baked powder coat, rated for indoor or outdoor use, so an exterior wall near the service entrance is a normal location. Leave working clearance for service access.
4) Do I still need a separate load center or main breaker if I use a service rated transfer switch?
Service rated means the RXSW100A3 sits at the service entrance and handles the utility disconnect function itself, so it goes between the meter and the panel rather than downstream of a main. That is the difference from a non-service-rated switch, which must be fed from an existing main disconnect. Utility conductors land on the utility side, generator conductors on the generator side, and branch circuits route through the load management system. Final arrangement follows your local code and inspector.
5) How many air conditioners can the Generac Smart Switch manage without extra modules?
Four individual HVAC loads, handled on the switch's own board with no added hardware. The A/C module watches generator frequency and sheds connected loads when the set starts to bog, which keeps a 16kW generator from tripping offline on a compressor start. If you need control beyond those four, a Smart Management Module can be added in tandem.
6) Can I use this on a 208V three phase service?
No. The RXSW100A3 is a 120/240V single phase switch. A three phase or 208V service needs a three phase transfer switch matched to that system, and the generator has to be single phase with an Evolution or Nexus controller for this switch to function as designed.
7) What are the dimensions and weight of the Generac RXSW100A3 enclosure for wall mounting?
16 inches wide, 21 inches high, 9 inches deep, and 20 lbs for the unit (22.5 lbs assembled). That is a one-person hang on a standard exterior wall, but the 9 inch depth matters if you are fitting it between the meter and a tight sidewalk or fence line.
8) Is the Generac Smart Switch UL listed for an inspected commercial job?
It carries both a UL safety listing and an ETL safety listing. CSA listing is not carried, so if a Canadian job requires CSA, this is not the switch for it.
9) What comes in the box with the Generac RXSW100A3 transfer switch?
The transfer switch only. Conduit, fittings, conductors, and any Smart Management Modules you plan to add are separate line items, so price those into the job. Country of origin is the United States.
10) I'm replacing an older Generac transfer switch that had a separate load shed module. Does this one consolidate that?
That's the point of the Smart Switch design. Load management and transfer hardware live on a single board, and the fuses are integrated into that board rather than sitting as separate components. On a retrofit where the old switch needed an external shed kit for the A/C, this puts four HVAC loads under one enclosure, provided the generator is a single-phase Generac with Evolution or Nexus controls and no more than 16kW.
How fast can I get the Generac RXSW100A3 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Generac RXSW100A3 come with a warranty?
Absolutely. The Generac RXSW100A3 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Generac RXSW100A3?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Generac RXSW100A3 from ZenSupply?
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