The Generac Smart Switch 100 Amps Service Rated 120/240 NEMA 3R is an automatic transfer switch designed for seamless integration with single-phase generators using Evolution or Nexus controllers. This switch supports open transition load transfer and is housed in a durable aluminum NEMA Type 3R enclosure with a powder-coated finish, making it suitable for outdoor installations. It is ideal for residential and light commercial applications, providing reliable backup power management during utility outages and ensuring continuous operation of essential loads.

Key use case applications include whole-house backup, small business facilities, and installations requiring management of multiple HVAC loads. The integrated Smart A/C Module allows control of up to four HVAC loads, with the option to expand management to eight additional loads using external Smart Management Modules. The switch features a heavy-duty Generac contactor, manual operation capability, and compatibility with generator controllers for timing, sensing, and transfer commands.

Key Features:

• 100 Amps, 120/240V single-phase automatic transfer switch
• Service rated configuration
• Open transition load transfer
• Aluminum NEMA Type 3R enclosure with powder-coated finish
• Integrated Smart A/C Module for HVAC load management
• Expandable load management with external modules
• Heavy-duty Generac contactor for reliable operation
• Manual operation capability without power applied
• Compatible with Evolution and Nexus generator controllers
• ETL listed for safety and compliance
• Suitable for residential and light commercial backup power applications