The GENERAC Service Rated Automatic Transfer Switch with 20–40 circuit load center is engineered for seamless power management in residential and light commercial environments. Rated at 200 amps and operating at 120/240 volts, this switch serves as a service entrance device, allowing direct installation at the utility entry point. Its NEMA 3R enclosure ensures durability in outdoor conditions, protecting against rain, snow, and debris. The unit includes 20 circuit spaces, expandable to 40 using tandem breakers, offering flexibility for future electrical needs.

This transfer switch integrates with Generac single-phase generators and supports both Evolution and Nexus controllers for efficient power transitions during outages. It features advanced load management technology capable of controlling up to four HVAC loads without additional accessories, optimizing generator performance and potentially reducing generator size requirements. Ideal use cases include whole-home backup systems, small business continuity setups, and installations requiring branch circuit protection for outbuildings.

Key Features:

• 200A service entrance rated automatic transfer switch
• 120/240V single-phase operation
• 20 circuit spaces expandable to 40 with tandem breakers
• NEMA 3R enclosure for indoor/outdoor use
• Integrated load management for up to four HVAC loads
• Compatible with Generac Evolution and Nexus controllers
• Pass-through lugs for branch circuit protection
• 5-year limited warranty for long-term reliability